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Ruwoldt J, Handiso B, Øksnes Dalheim M, Solberg A, Simon S, Syverud K. Interfacial Adsorption of Oil-Soluble Kraft Lignin and Stabilization of Water-in-Oil Emulsions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:5409-5419. [PMID: 38424003 PMCID: PMC10938882 DOI: 10.1021/acs.langmuir.3c03950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 02/13/2024] [Accepted: 02/14/2024] [Indexed: 03/02/2024]
Abstract
In this paper, the potential of esterified Kraft lignin as a novel oil-soluble surfactant was examined. The lignin was chemically modified by esterification with lauric or stearic acid, making it soluble in solvents such as toluene or n-decane. Adsorption at the oil-water interface was then studied by the Du Noüy ring-method. The oil-soluble lignin behaved similar to water-soluble lignin surfactants, both the qualitative and quantitative progression of interfacial tension. Modeling revealed a surface excess of 7.5-9.0 × 10-7 mol/m2, area per molecule of 185-222 Å2, and a diffusion coefficient within the range 10-10 to 10-14 m2/s; all of which are in line with existing literature on water-soluble lignosulfonates. The data further suggested that the pendant alkyl chains were extended well into the paraffinic solvent. At last, bottle tests showed that the oil-soluble lignin was able to stabilize oil-in-water emulsions. The emulsion stability was affected by the concentration of lignin or NaCl as well as the oil phase composition. Aromatic oils exhibited lower emulsion stability in comparison to the aliphatic oil. In conclusion, a new type of surfactant was synthesized and studied, which may contribute to developing green surfactants and novel approaches to valorize technical lignin.
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Affiliation(s)
- Jost Ruwoldt
- RISE
PFI AS, Høgskoleringen 6B, NO-7094 Trondheim, Norway
| | - Berhane Handiso
- Ugelstad
Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
| | | | - Amalie Solberg
- RISE
PFI AS, Høgskoleringen 6B, NO-7094 Trondheim, Norway
| | - Sébastien Simon
- Ugelstad
Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
| | - Kristin Syverud
- RISE
PFI AS, Høgskoleringen 6B, NO-7094 Trondheim, Norway
- Ugelstad
Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU), NO-7491 Trondheim, Norway
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2
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Appleby BA, Chacon A, Mishra A, Liserre M, Goggin DM, Samaniuk JR. Subphase Exchange Cell for Studying Fluid-Fluid Interfaces with Optical Microscopy. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:2174-2182. [PMID: 38226897 DOI: 10.1021/acs.langmuir.3c03154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/17/2024]
Abstract
A subphase exchange cell was designed to observe fluid-fluid interfaces with a conventional optical microscope while simultaneously changing the subphase chemistry. Materials including phospholipids, asphaltenes, and nanoparticles at fluid-fluid interfaces exhibit unique morphological changes as a function of the bulk-phase chemistry. These changes can affect their interfacial material properties and, ultimately, the emergent bulk material properties of the films, foams, and emulsions produced from such interfacial systems. In this work, we combine experiments, computational fluid dynamics simulations, and modeling to establish the operating parameters for a subphase exchange cell of this type to reach a desired concentration. We used the experimental setup to investigate changes to a graphene film during a common wet-etching transfer process. Observations reveal that capillary interactions can induce defects and deformations in the graphene film during the wet-etching process, an important finding that must be considered for any wet-etching transfer technique for 2D materials. More generally, conventional optical microscopy was shown to be able to image the dynamics of interfacial systems during a bulk-phase chemistry change. Potential applications for this equipment and technique include observing morphological dynamics of phospholipid film structure with subphase salinity, asphaltene film structure with subphase pH, and particle film synthesis with subphase chemistry.
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Affiliation(s)
- Benjamin A Appleby
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Amy Chacon
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Arpit Mishra
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Matteo Liserre
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
| | - David M Goggin
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
| | - Joseph R Samaniuk
- Department of Chemical and Biological Engineering, Colorado School of Mines, Golden, Colorado 80401, United States
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3
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Yu P, Liu X, Zhu H, Dou R, Zeng S, Zhou N, Lei Y. Simulation Investigation on the Influence Mechanism of Toluene and Heptane on the Aggregation of Asphaltene Molecules. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:16374-16384. [PMID: 37939383 DOI: 10.1021/acs.langmuir.3c02120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2023]
Abstract
Asphaltenes are a group of compounds that are soluble in benzene and toluene but insoluble in nonpolar small molecule n-alkanes. The asphaltene aggregation in the asphaltene-heptane-toluene system was studied using molecular dynamics (MD) simulation, and the interaction between asphaltene molecules during this process was also revealed from the evolution of the density field, radial distribution function (RDF), and intermolecular distance of asphaltenes. Three main findings were made: (1) more asphaltene precipitates (heptane) were contained, and more asphaltene dimers or trimers were formed during the MD simulation; (2) asphaltene molecules interacted with each other to form aggregates in the form of π-π or H-bond interaction. The stable distance of the π-π interaction was 3.3-3.5 Å, and the stable distance of the H-bond connection was 1.7-1.9 Å. (3) The asphaltene interaction in the heptane-rich system was dominated by π-π interaction between asphaltene molecules. However, the asphaltene interactions in the toluene-rich system were mainly the π-π interaction between asphaltene molecules and toluene and the H-bond interaction between the side chains of asphaltene molecules. The results of this study can aid in understanding how asphaltene molecules aggregate and self-associate and can also offer theoretical support for flow assurance in systems used to produce crude oil.
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Affiliation(s)
- Pengfei Yu
- Jiangsu Key Laboratory of Oil and Gas Storage & Transportation Technology, Changzhou University, Jiangsu 213164, China
| | - Xueqian Liu
- Jiangsu Key Laboratory of Oil and Gas Storage & Transportation Technology, Changzhou University, Jiangsu 213164, China
| | - Haoran Zhu
- Jiangsu Key Laboratory of Oil and Gas Storage & Transportation Technology, Changzhou University, Jiangsu 213164, China
| | - Rui Dou
- Jiangsu Key Laboratory of Oil and Gas Storage & Transportation Technology, Changzhou University, Jiangsu 213164, China
| | - Shaoliang Zeng
- Jiangsu Key Laboratory of Oil and Gas Storage & Transportation Technology, Changzhou University, Jiangsu 213164, China
| | - Nianyong Zhou
- Jiangsu Key Laboratory of Oil and Gas Storage & Transportation Technology, Changzhou University, Jiangsu 213164, China
| | - Yun Lei
- Jiangsu Key Laboratory of Oil and Gas Storage & Transportation Technology, Changzhou University, Jiangsu 213164, China
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Ma J, Haider OM, Chang CC, Grzesiak KA, Squires TM, Walker LM. Solvent Quality and Aggregation State of Asphaltenes on Interfacial Mechanics and Jamming Behavior at the Oil/Water Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:15238-15248. [PMID: 37862270 PMCID: PMC10620990 DOI: 10.1021/acs.langmuir.3c01890] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 10/02/2023] [Indexed: 10/22/2023]
Abstract
The formation of highly stable water-in-oil emulsions results in complications in both upstream and downstream processing. Emulsion stability in these systems has been connected to the adsorption of surface-active asphaltenes that are assumed to form a rigidified film at the oil/water (o/w) interface. Full characterization of this behavior is needed to allow for engineered solutions for enhanced oil recovery. Interfacial properties, such as surface pressure and interfacial elasticity, are implicated in the stabilizing mechanism for these observed films. Asphaltenes are known to be interfacially active in both good solvents (aromatics) and poor solvents (high ratio of aliphatic to aromatic). However, due to inherent complexities present in asphaltene studies, the details of the mechanical properties of the interface remain poorly understood. Despite the widely accepted perception that asphaltenes form persistent rigid films at fluid-fluid interfaces, the connection between bulk solution properties and interfacial mechanics has not been resolved. Here, the effects of solvent quality on the interfacial properties of asphaltene dispersions are determined by using a well-defined asphaltene/solvent system. Interfacial rigidity is observed only under poor solvent conditions, while the good solvent system remains fluid-like. The interfacial rheology under good and poor solvent conditions is measured simultaneously with surface pressure measurements to track interfacial development. It is shown that surface pressure and dilatational modulus measurements are not indicators of whether an interface demonstrates rigid behavior under large compressions. Finally, conditions required for asphaltene-coated interfaces to exhibit the mechanical behavior associated with a rigidified interface are defined. This work provides a framework for quantifying the impact of the aggregation state of asphaltenes on the stability and mechanics at the o/w interface.
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Affiliation(s)
- Junchi Ma
- Department
of Chemical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
| | - Olivia M. Haider
- Department
of Chemical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
| | - Chih-Cheng Chang
- Department
of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | | | - Todd M. Squires
- Department
of Chemical Engineering, University of California, Santa Barbara, California 93106, United States
| | - Lynn M. Walker
- Department
of Chemical Engineering, Carnegie Mellon
University, Pittsburgh, Pennsylvania 15213, United States
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5
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Abbasi Moud A, Abbasi Moud A. Flow and assembly of cellulose nanocrystals (CNC): A bottom-up perspective - A review. Int J Biol Macromol 2023; 232:123391. [PMID: 36716841 DOI: 10.1016/j.ijbiomac.2023.123391] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 01/17/2023] [Accepted: 01/19/2023] [Indexed: 01/28/2023]
Abstract
Cellulosic sources, such as lignocellulose-rich biomass, can be mechanically or acid degraded to produce inclusions called cellulose nanocrystals (CNCs). They have several uses in the sectors of biomedicine, photonics, and material engineering because of their biodegradability, renewability, sustainability, and mechanical qualities. The processing and design of CNC-based products are inextricably linked to the rheological behaviour of CNC suspension or in combination with other chemicals, such as surfactants or polymers; in this context, rheology offers a significant link between microstructure and macro scale flow behaviour that is intricately linked to material response in applications. The flow behaviour of CNC items must be properly specified in order to produce goods with value-added characteristics. In this review article, we provide new research on the shear rheology of CNC dispersion and CNC-based hydrogels in the linear and nonlinear regime, with storage modulus values reported to range from ~10-3 to 103 Pa. Applications in technology and material science are also covered simultaneously. We carefully examined the effects of charge density, aspect ratio, concentration, persistence length, alignment, liquid crystal formation, the cause of chirality in CNCs, interfacial behaviour and interfacial rheology, linear and nonlinear viscoelasticity of CNC suspension in bulk and at the interface using the currently available literature.
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Affiliation(s)
- Aref Abbasi Moud
- Department of Chemical and Biological Engineering, The University of British Columbia, Vancouver, British Columbia V6T 1Z3, Canada; Biomedical Engineering Department, AmirKabir University of Technology, P.O. Box 15875/4413, PC36+P45 District 6, Tehran, Tehran Province 1591634311, Iran.
| | - Aliyeh Abbasi Moud
- Biomedical Engineering Department, AmirKabir University of Technology, P.O. Box 15875/4413, PC36+P45 District 6, Tehran, Tehran Province 1591634311, Iran
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6
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A Review of Oil-Solid Separation and Oil-Water Separation in Unconventional Heavy Oil Production Process. Int J Mol Sci 2022; 24:ijms24010074. [PMID: 36613516 PMCID: PMC9820792 DOI: 10.3390/ijms24010074] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/08/2022] [Accepted: 12/16/2022] [Indexed: 12/24/2022] Open
Abstract
Unconventional heavy oil ores (UHO) have been considered an important part of petroleum resources and an alternative source of chemicals and energy supply. Due to the participation of water and extractants, oil-solid separation (OSS) and oil-water separation (OWS) processes are inevitable in the industrial separation processes of UHO. Therefore, this critical review systematically reviews the basic theories of OSS and OWS, including solid wettability, contact angle, oil-solid interactions, structural characteristics of natural surfactants and interface characteristics of interfacially active asphaltene film. With the basic theories in mind, the corresponding OSS and OWS mechanisms are discussed. Finally, the present challenges and future research considerations are touched on to provide insights and theoretical fundamentals for OSS and OWS. Additionally, this critical review might even be useful for the provision of a framework of research prospects to guide future research directions in laboratories and industries that focus on the OSS and OWS processes in this important heavy oil production field.
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7
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Liu W, Fu H, Bao M, Luo C, Han X, Zhang D, Liu H, Li Y, Lu J. Emulsions stabilized by asphaltene-polyacrylamide-soil three-phase components: Stabilization mechanism and concentration effects. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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9
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Lopes AM, Wernert V, Sorbier L, Lecocq V, Denoyel R. Adsorption of asphaltenes on multiscale porous alumina. ADSORPTION 2022. [DOI: 10.1007/s10450-022-00366-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2022]
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10
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Pagán Pagán NM, Zhang Z, Nguyen TV, Marciel AB, Biswal SL. Physicochemical Characterization of Asphaltenes Using Microfluidic Analysis. Chem Rev 2022; 122:7205-7235. [PMID: 35196011 DOI: 10.1021/acs.chemrev.1c00897] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Crude oils are complex mixtures of organic molecules, of which asphaltenes are the heaviest component. Asphaltene precipitation and deposition have been recognized to be a significant problem in oil production, transmission, and processing facilities. These macromolecular aromatics are challenging to characterize due to their heterogeneity and complex molecular structure. Microfluidic devices are able to capture key characteristics of reservoir rocks and provide new insights into the transport, reactions, and chemical interactions governing fluids used in the oil and gas industry. Understanding the microscale phenomena has led to better design of macroscale processes used by the industry. One area that has seen significant growth is in the area of chemical analysis under flowing conditions. Microfluidics and microscale analysis have advanced the understanding of complex mixtures by providing in situ imaging that can be combined with other chemical characterization methods to give details of how oil, water, and added chemicals interface with pore-scale detail. This review article aims to showcase how microfluidic devices offer new physical, chemical, and dynamic information on the behavior of asphaltenes. Specifically, asphaltene deposition and related flow assurance problems, interfacial properties and rheology, and evaluation of remediation strategies studied in microchannels and microfluidic porous media are presented. Examples of successful applications that address key asphaltene-related problems highlight the advances of microscale systems as a tool for advancing the physicochemical characterization of complex fluids for the oil and gas industry.
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Affiliation(s)
- Nataira M Pagán Pagán
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Zhuqing Zhang
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Thao Vy Nguyen
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Amanda B Marciel
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
| | - Sibani Lisa Biswal
- Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77005, United States
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11
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Fernandes Soares I, de Oliveira MCK, Feijó Naccache M, Nele M. Effects of monovalent and divalent cations on the rheology of organic acid laden interfaces. J DISPER SCI TECHNOL 2021. [DOI: 10.1080/01932691.2021.2017296] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Isabela Fernandes Soares
- Department of Mechanical Engineering, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, Brazil
| | | | - Mônica Feijó Naccache
- Department of Mechanical Engineering, Pontifical Catholic University of Rio de Janeiro, Rio de Janeiro, Brazil
| | - Márcio Nele
- Department of Chemical Engineering, Federal University of Rio de Janeiro, Cidade Universitária, Rio de Janeiro, Brazil
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12
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Synergetic effect of asphaltenes extracted from polymer containing oil sludge and HPAM at water/toluene interface. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127572] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Velandia SF, Ramos D, Lebrun M, Marchal P, Lemaitre C, Sadtler V, Roques-Carmes T. Exploring the link between interfacial and bulk viscoelasticity in reverse Pickering emulsions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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14
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Transient interfacial rheology and polar component dynamics at oil-brine interfaces. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126773] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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15
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Vishal B. Foaming and rheological properties of aqueous solutions: an interfacial study. REV CHEM ENG 2021. [DOI: 10.1515/revce-2020-0060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
Although aqueous foam is composed of simple fluids, air and water, it shows a complex rheological behavior. It exhibits solid-like behavior at low shear and fluid-like behavior at high shear rate. Therefore, understanding such behavior is important for many industrial applications in foods, pharmaceuticals, and cosmetics. Additionally, air–water interface of bubble surface plays an important role in the stabilizing mechanism of foams. Therefore, the rheological properties associated with the aqueous foam highly depend on its interfacial properties. In this review, a systematic study of aqueous foam are presented primarily from rheology point of view. Firstly, foaming agents, surfactants and particles are described; then foam structure was explained, followed by change in structure under applied shear. Finally, foam rheology was linked to interfacial rheology for the interface containing particles whose surface properties were altered by surfactants.
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Affiliation(s)
- Badri Vishal
- Department of Chemistry and Biochemistry , University of Hull , Hull , HU6 7RX , UK
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16
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Alzobaidi S, Da C, Wu P, Zhang X, Rabat-Torki NJ, Harris JM, Hackbarth JE, Lu C, Hu D, Johnston KP. Tuning Nanoparticle Surface Chemistry and Interfacial Properties for Highly Stable Nitrogen-In-Brine Foams. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:5408-5423. [PMID: 33881323 DOI: 10.1021/acs.langmuir.1c00832] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The design of surface chemistries on nanoparticles (NPs) to stabilize gas/brine foams with concentrated electrolytes, especially with divalent ions, has been elusive. Herein, we tune the surface of 20 nm silica NPs by grafting a hydrophilic and a hydrophobic ligand to achieve two seemingly contradictory goals of colloidal stability in brine and high NP adsorption to yield a viscoelastic gas-brine interface. Highly stable nitrogen/water (N2/brine) foams are formed with CaCl2 concentrations up to 2% from 25 to 90 °C. The viscoelastic gas-brine interface retards drainage of the lamellae, and the high dilational elasticity arrests coarsening (Ostwald ripening) with no observable change in foam bubble size over 48 h. The ability to design NP-laden viscoelastic interfaces for highly stable foams, even with high divalent ion concentrations, is of fundamental mechanistic interest for a broad range of foam applications and in particular foams for CO2 sequestration and enhanced oil recovery.
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Affiliation(s)
- Shehab Alzobaidi
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, 200 East Dean Keeton Street, Austin, Texas 78712-1139, United States
| | - Chang Da
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, 200 East Dean Keeton Street, Austin, Texas 78712-1139, United States
| | - Pingkeng Wu
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, 200 East Dean Keeton Street, Austin, Texas 78712-1139, United States
| | - Xuan Zhang
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, 200 East Dean Keeton Street, Austin, Texas 78712-1139, United States
| | - Nava J Rabat-Torki
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, 200 East Dean Keeton Street, Austin, Texas 78712-1139, United States
| | - Justin M Harris
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, 200 East Dean Keeton Street, Austin, Texas 78712-1139, United States
| | - Jamie E Hackbarth
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, 200 East Dean Keeton Street, Austin, Texas 78712-1139, United States
| | - Congwen Lu
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, 200 East Dean Keeton Street, Austin, Texas 78712-1139, United States
| | - Dongdong Hu
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, 200 East Dean Keeton Street, Austin, Texas 78712-1139, United States
| | - Keith P Johnston
- McKetta Department of Chemical Engineering and Texas Materials Institute, The University of Texas at Austin, 200 East Dean Keeton Street, Austin, Texas 78712-1139, United States
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17
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Holley NP, Lee JG, Valsaraj KT, Bharti B. Synthesis and characterization of ZEin-based Low Density Porous Absorbent (ZELDA) for oil spill recovery. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126148] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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18
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Fajardo-Rojas F, Alvarez Solano OA, Samaniuk JR, Pradilla D. Deviation from Equilibrium Thermodynamics of an Asphaltene Model Compound during Compression-Expansion Experiments at Fluid-Fluid Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2021; 37:1799-1810. [PMID: 33497231 DOI: 10.1021/acs.langmuir.0c03151] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Asphaltenes play a crucial role in crude oil behavior, and model compounds are often used to capture, mimic, and predict certain interfacial properties. In previous works, sorption of an asphaltene model compound (C5PeC11) was studied using surface pressure isotherms, where a deviation from the expected thermodynamic behavior of the interface during decane-water and air-water compression experiments was observed but not explained. In this work, the interfacial behavior of C5PeC11 was assessed at the decane-water and the air-water interfaces using a multiscale approach that includes: compression-expansion experiments on rectangular and radial Langmuir troughs, dynamic interfacial stress relaxation, and fluorescence microscopy imaging. Connections between molecular and microscopic phenomena strongly suggest that the nonthermodynamic response can be explained through a dynamic effect whose origin lies in the predominance of intermolecular forces in C5PeC11 molecules over the mechanical compression force applied. When aggregation begins at the air-water interface, stable structures are formed, and the nonthermodynamic phenomenon is not observed in subsequent compressions. However, at the decane-water interface, the initial aggregation is not consolidated due to the effect of the oil phase on the free energy of the interface allowing the high reproducibility of the dynamic effect in subsequent compression cycles. These results highlight the need to probe interfacial systems at various length scales to adequately separate equilibrium thermodynamics from dynamic responses.
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Affiliation(s)
- Fernando Fajardo-Rojas
- Grupo de Diseño de Productos y Procesos (GDPP), Departamento de Ingeniería Química, Universidad de los Andes, Carrera 1 Este No. 18A-12, Edificio Mario Laserna, Piso 7, Bogotá 110111, Colombia
| | - Oscar Alberto Alvarez Solano
- Grupo de Diseño de Productos y Procesos (GDPP), Departamento de Ingeniería Química, Universidad de los Andes, Carrera 1 Este No. 18A-12, Edificio Mario Laserna, Piso 7, Bogotá 110111, Colombia
| | - Joseph R Samaniuk
- Soft Matter and Interfaces Laboratory, Department of Chemical and Biological Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States
| | - Diego Pradilla
- Grupo de Diseño de Productos y Procesos (GDPP), Departamento de Ingeniería Química, Universidad de los Andes, Carrera 1 Este No. 18A-12, Edificio Mario Laserna, Piso 7, Bogotá 110111, Colombia
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19
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Alicke A, Simon S, Sjöblom J, Vermant J. Assessing the Interfacial Activity of Insoluble Asphaltene Layers: Interfacial Rheology versus Interfacial Tension. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:14942-14959. [PMID: 33264021 DOI: 10.1021/acs.langmuir.0c02234] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Asphaltenes have been suggested to play an important role in the remarkable stability of some water-in-crude oil emulsions, although the precise mechanisms by which they act are not yet fully understood. Being one of the more polar fractions in crude oils, asphaltenes are surface active and strongly adsorb at the oil/water interface, and as the interface becomes densely packed, solid-like mechanical properties emerge, which influence many typical interfacial experiments. The present work focuses on purposefully measuring the rheology in the limit of an insoluble, spread Langmuir monolayer in the absence of adsorption/desorption phenomena. Moreover, the changes in surface tension are deconvoluted from the purely mechanical contribution to the surface stress by experiments with precise interfacial kinematics. Compression "isotherms" are combined with the measurement of both shear and dilatational rheological properties to evaluate the relative contributions of mechanical versus thermodynamic aspects, i.e., to evaluate the "interfacial rheological" versus the standard interfacial activity. The experimental results suggest that asphaltene nanoaggregates are not very efficient in lowering interfacial tension but rather impart significant mechanical stresses. Interestingly, physical aging effects are not observed in the spread layers, contrary to results for adsorbed layers. By further studying asphaltene fractions of different polarity, we investigate whether mere packing effects or strong interactions determine the mechanical response of the dense asphaltene systems as either soft glassy or gel-like responses have been reported. The compressional and rheological data reflect the dense packing, and the behavior is captured well by the soft glassy rheology model, but a more complicated multilayer structure may develop as coverage is increased. Potential implications of the experimental observations on these model and insoluble interfaces for water-in-crude oil emulsion stability are briefly discussed.
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Affiliation(s)
- Alexandra Alicke
- Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, Zurich 8093, Switzerland
| | - Sébastien Simon
- Department of Chemical Engineering, Ugelstad Laboratory, NTNU, N-7491 Trondheim, Norway
| | - Johan Sjöblom
- Department of Chemical Engineering, Ugelstad Laboratory, NTNU, N-7491 Trondheim, Norway
| | - Jan Vermant
- Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, Zurich 8093, Switzerland
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Ruwoldt J, Simon S, Øye G. Viscoelastic properties of interfacial lignosulfonate films and the effect of added electrolytes. Colloids Surf A Physicochem Eng Asp 2020. [DOI: 10.1016/j.colsurfa.2020.125478] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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21
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Nanofabrication Techniques in Large-Area Molecular Electronic Devices. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10176064] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
The societal impact of the electronics industry is enormous—not to mention how this industry impinges on the global economy. The foreseen limits of the current technology—technical, economic, and sustainability issues—open the door to the search for successor technologies. In this context, molecular electronics has emerged as a promising candidate that, at least in the short-term, will not likely replace our silicon-based electronics, but improve its performance through a nascent hybrid technology. Such technology will take advantage of both the small dimensions of the molecules and new functionalities resulting from the quantum effects that govern the properties at the molecular scale. An optimization of interface engineering and integration of molecules to form densely integrated individually addressable arrays of molecules are two crucial aspects in the molecular electronics field. These challenges should be met to establish the bridge between organic functional materials and hard electronics required for the incorporation of such hybrid technology in the market. In this review, the most advanced methods for fabricating large-area molecular electronic devices are presented, highlighting their advantages and limitations. Special emphasis is focused on bottom-up methodologies for the fabrication of well-ordered and tightly-packed monolayers onto the bottom electrode, followed by a description of the top-contact deposition methods so far used.
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22
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Fajardo-Rojas F, Pradilla D, Alvarez Solano OA, Samaniuk J. Probing Interfacial Structure and Dynamics of Model and Natural Asphaltenes at Fluid-Fluid Interfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:7965-7979. [PMID: 32580555 DOI: 10.1021/acs.langmuir.0c01320] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Asphaltenes are largely responsible for crude oil interfacial behavior. Due to their complex molecular nature, studying connections between interfacial properties and molecular structure is challenging, and these connections remain unclear. Several groups have reported on the interfacial behavior of asphaltenes, but a unified picture of both interfacial dynamics and thermodynamics is still missing. We seek to establish connections between asphaltene interfacial morphology and interfacial dynamics by combining interfacial dilatational deformation with microscopic structural imaging analysis. Understanding the behavior of natural asphaltene samples is made difficult by the inherent molecular variability. Therefore, we have also studied the behavior of an asphaltene model compound to draw fundamental structure-property relationships. This work contains simultaneous interfacial deformation and microscopy in systems of natural and model asphaltenes at air-water and decane-water interfaces. How the dynamics of natural asphaltenes influences the morphological and thermodynamic state of the air-water and decane-water interfaces is discussed based on the deviations observed between isotropic and anisotropic deformations. Areas where model asphaltenes can help us to understand the behavior of natural asphaltenes are identified such as its high surface pressure activity and aggregation character. An aggregation mechanism for model and natural asphaltenes is proposed based on an observed relationship between microscopic and millimetric aggregates.
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Affiliation(s)
- Fernando Fajardo-Rojas
- Grupo de Diseño de Producto y Proceso (GDPP), Departamento de Ingeniería Química, Universidad de los Andes, Carrera 1 Este No. 18A-12, Edificio Mario Laserna, Piso 7, Bogotá 110111, Colombia
| | - Diego Pradilla
- Grupo de Diseño de Producto y Proceso (GDPP), Departamento de Ingeniería Química, Universidad de los Andes, Carrera 1 Este No. 18A-12, Edificio Mario Laserna, Piso 7, Bogotá 110111, Colombia
| | - Oscar Alberto Alvarez Solano
- Grupo de Diseño de Producto y Proceso (GDPP), Departamento de Ingeniería Química, Universidad de los Andes, Carrera 1 Este No. 18A-12, Edificio Mario Laserna, Piso 7, Bogotá 110111, Colombia
| | - Joseph Samaniuk
- Soft Matter and Interfaces Laboratory, Department of Chemical and Biological Engineering, Colorado School of Mines, 1500 Illinois Street, Golden, Colorado 80401, United States
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Simon S, Ruwoldt J, Sjöblom J. A critical update of experimental techniques of bulk and interfacial components for fluid characterization with relevance to well fluid processing and transport. Adv Colloid Interface Sci 2020; 277:102120. [PMID: 32062168 DOI: 10.1016/j.cis.2020.102120] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 01/30/2020] [Accepted: 02/02/2020] [Indexed: 11/20/2022]
Abstract
The present article reviews techniques to address central flow assurance and separation issues. It is our purpose to update the need for extended information in order to draw adequate conclusions about the reason for irregularities in production and how this is related to individual components or fractions in the crude oil. Our intention is to show that the mass related analysis (such as SARA, MS etc.) are insufficient for a validation of the early stage predictions concerning irregularities. The review introduces a set of new characterization and fractionation techniques such as interfacial rheology, SANS, and NMR, where the central theme is the functionality of the components and not just their mass. Two crude oil-related issues are addressed: Wax precipitation and deposition, and crude oil/water resolution. First, bulk techniques to characterize wax precipitation are reviewed. The influence of the chemistry of other crude oil components (asphaltenes) and wax inhibitor on the precipitation is highlighted. Secondly, in aqueous systems, interfacial w/o conditions are important for the stability of dispersed systems. Asphaltenes have a crucial and important role in the stability of crude oil emulsions. Here special attention is directed to properties like interfacial viscosity and elasticity as well as the adsorbed layer structure determination. Small molecular changes in these properties will have dramatic influence on the stability of the heterogeneous systems. A good example is inhibitor functionality.
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Affiliation(s)
- Sébastien Simon
- Ugelstad Laboratory, Norwegian University of Science and Technology, 7491 Trondheim, Norway.
| | - Jost Ruwoldt
- Ugelstad Laboratory, Norwegian University of Science and Technology, 7491 Trondheim, Norway
| | - Johan Sjöblom
- Ugelstad Laboratory, Norwegian University of Science and Technology, 7491 Trondheim, Norway
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24
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Rahman M, Zhao X, Christopher GF. Two component model oils for interfacial shear characterization. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123780] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Rashid Z, Wilfred CD, Iyyaswami R, Appusamy A, Thanabalan M. Investigating the solubility of petroleum asphaltene in ionic liquids and their interaction using COSMO-RS. J IND ENG CHEM 2019. [DOI: 10.1016/j.jiec.2019.06.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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26
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Chang CC, Williams I, Nowbahar A, Mansard V, Mecca J, Whitaker KA, Schmitt AK, Tucker CJ, Kalantar TH, Kuo TC, Squires TM. Effect of Ethylcellulose on the Rheology and Mechanical Heterogeneity of Asphaltene Films at the Oil-Water Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:9374-9381. [PMID: 31256591 DOI: 10.1021/acs.langmuir.9b00834] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Asphaltenes are surface-active molecules that exist naturally in crude oil. They adsorb at the water-oil interface and form viscoelastic interfacial films that stabilize emulsion droplets, making water-oil separation extremely challenging. There is, thus, a need for chemical demulsifiers to disrupt the interfacial asphaltene films, and, thereby, facilitate water-oil separation. Here, we examine ethylcellulose (EC) as a model demulsifier and measure its impact on the interfacial properties of asphaltene films using interfacial shear microrheology. When EC is mixed with an oil and asphaltene solution, it retards the interfacial stiffening that occurs between the oil phase in contact with a water phase. Moreover, EC introduces relatively weak regions within the film. When EC is introduced to a pre-existing asphaltene film, the stiffness of the films decreases abruptly and significantly. Direct visualization of interfacial dynamics further reveals that EC acts inhomogeneously, and that relatively soft regions in the initial film are seen to expand. This mechanism likely impacts emulsion destabilization and provides new insight to the process of demulsification.
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Affiliation(s)
- Chih-Cheng Chang
- Department of Chemical Engineering , University of California , Santa Barbara , California 93106-5080 , United States
| | - Ian Williams
- Department of Chemical Engineering , University of California , Santa Barbara , California 93106-5080 , United States
- Department of Chemistry , University College London , 20 Gordon Street , London WC1H 0AJ , U.K
| | - Arash Nowbahar
- Department of Chemical Engineering , University of California , Santa Barbara , California 93106-5080 , United States
| | - Vincent Mansard
- Department of Chemical Engineering , University of California , Santa Barbara , California 93106-5080 , United States
- Laboratory for Analysis and Architecture of Systems , Toulouse 31400 , France
| | - Jodi Mecca
- The Dow Chemical Company , Midland , Michigan 48674 , United States
| | | | - Adam K Schmitt
- The Dow Chemical Company , Midland , Michigan 48674 , United States
| | | | - Tom H Kalantar
- The Dow Chemical Company , Midland , Michigan 48674 , United States
| | - Tzu-Chi Kuo
- The Dow Chemical Company , Midland , Michigan 48674 , United States
| | - Todd M Squires
- Department of Chemical Engineering , University of California , Santa Barbara , California 93106-5080 , United States
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Abi Chebel N, Piedfert A, Lalanne B, Dalmazzone C, Noïk C, Masbernat O, Risso F. Interfacial Dynamics and Rheology of a Crude-Oil Droplet Oscillating in Water at a High Frequency. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:9441-9455. [PMID: 31257882 DOI: 10.1021/acs.langmuir.9b01594] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
We report investigations of a pendant diluted crude-oil droplet in water that is forced to oscillate at a frequency ω. The droplet interface contains a significant amount of surface-active agents and displays a marked viscoelastic rheology with elastic moduli larger than viscous ones. At a low frequency, fluid viscosity and inertia are negligible, which allows a direct determination of the dilatational interface rheology. At a large frequency, eigenmodes of inertial shape oscillations are excited. By decomposing the interface shape into spherical harmonics, the resonance curves of the inertial modes of the interface are determined, as well as the frequency and damping rate of each mode. These two parameters are of major importance for the prediction of the deformation and breakup of a droplet in any unsteady flow without any prior knowledge of either the chemical composition or the detailed rheological properties of the interface. Then, interfacial rheology is related to interface dynamics by solving the coupled dynamic equations for the two fluids and the interface. It turns out that the rheology of the interface is well described by an equivalent two-dimensional viscoelastic material, the elasticities and viscosities of which depend upon the frequency. A first significant result is that shear and dilatational elasticities are closely connected, as are shear and dilatational viscosities. This implies that intrinsic rheology plays a major role and that compositional rheology is either negligible or strongly coupled to the intrinsic one. A second major result is that, for moderately aged droplets (≤5000 s), the elasticity and viscosity at a high frequency (10-80 Hz) can be extrapolated from low-frequency measurements (≤1 Hz) by a simple power law of the frequency, ωz. The exponent z is related to the loss angle θloss by a relation found in many previous low-frequency investigations of crude-oil interfaces: z = θloss/2π. The present work thus extends classic observations obtained at a low frequency to a higher frequency range corresponding to the natural frequency of the droplets, where the droplet shape results from the balance between dynamic pressure and surface stresses and the interface involves simultaneous shear and dilatation. These results bring about serious constraints regarding the modeling of physicochemical underlying mechanisms and provide some insights for the understanding of the structure of crude-oil interfaces.
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Affiliation(s)
- Nicolas Abi Chebel
- Institut de Mécanique des Fluides de Toulouse (IMFT), Université de Toulouse, CNRS , 31400 Toulouse , France
- Laboratoire de Génie Chimique (LGC), Université de Toulouse, CNRS , 31432 Toulouse , France
- FR FERMAT, Université de Toulouse, CNRS, INPT, INSA, UPS , Toulouse , France
| | - Antoine Piedfert
- Institut de Mécanique des Fluides de Toulouse (IMFT), Université de Toulouse, CNRS , 31400 Toulouse , France
- Laboratoire de Génie Chimique (LGC), Université de Toulouse, CNRS , 31432 Toulouse , France
- FR FERMAT, Université de Toulouse, CNRS, INPT, INSA, UPS , Toulouse , France
| | - Benjamin Lalanne
- Laboratoire de Génie Chimique (LGC), Université de Toulouse, CNRS , 31432 Toulouse , France
- FR FERMAT, Université de Toulouse, CNRS, INPT, INSA, UPS , Toulouse , France
| | - Christine Dalmazzone
- IFP Energies nouvelles , 1-4 avenue de Bois Préau , 92852 Rueil-Malmaison , France
| | - Christine Noïk
- IFP Energies nouvelles , 1-4 avenue de Bois Préau , 92852 Rueil-Malmaison , France
| | - Olivier Masbernat
- Laboratoire de Génie Chimique (LGC), Université de Toulouse, CNRS , 31432 Toulouse , France
- FR FERMAT, Université de Toulouse, CNRS, INPT, INSA, UPS , Toulouse , France
| | - Frédéric Risso
- Institut de Mécanique des Fluides de Toulouse (IMFT), Université de Toulouse, CNRS , 31400 Toulouse , France
- FR FERMAT, Université de Toulouse, CNRS, INPT, INSA, UPS , Toulouse , France
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28
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29
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Ivancic W, Wirth CL. Combined effect of oxidative treatment and residual alcohol on the mechanics of a multiwalled carbon nanotube laden interface. Colloids Surf A Physicochem Eng Asp 2018. [DOI: 10.1016/j.colsurfa.2018.04.062] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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30
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Emulsions in porous media: From single droplet behavior to applications for oil recovery. Adv Colloid Interface Sci 2018; 256:305-325. [PMID: 29622270 DOI: 10.1016/j.cis.2018.03.002] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2018] [Revised: 03/06/2018] [Accepted: 03/07/2018] [Indexed: 12/16/2022]
Abstract
Emulsions are suspensions of droplets ubiquitous in oil recovery from underground reservoirs. Oil is typically trapped in geological porous media where emulsions are either formed in situ or injected to elicit oil mobilization and thus enhance the amount of oil recovered. Here, we briefly review basic concepts on geometrical and wetting features of porous media, including thin film stability and fluids penetration modes, which are more relevant for oil recovery and oil-contaminated aquifers. Then, we focus on the description of emulsion flow in porous media spanning from the behaviour of single droplets to the collective flow of a suspension of droplets, including the effect of bulk and interfacial rheology, hydrodynamic and physico-chemical interactions. Finally, we describe the particular case of emulsions used in underground porous media for enhanced oil recovery, thereby discussing some perspectives of future work. Although focused on oil recovery related topics, most of the insights we provide are useful towards remediation of oil-contaminated aquifers and for a basic understanding of emulsion flow in any kind of porous media, such as biological tissues.
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31
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Chang CC, Nowbahar A, Mansard V, Williams I, Mecca J, Schmitt AK, Kalantar TH, Kuo TC, Squires TM. Interfacial Rheology and Heterogeneity of Aging Asphaltene Layers at the Water-Oil Interface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:5409-5415. [PMID: 29685033 DOI: 10.1021/acs.langmuir.8b00176] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Surface-active asphaltene molecules are naturally found in crude oil, causing serious problems in the petroleum industry by stabilizing emulsion drops, thus hindering the separation of water and oil. Asphaltenes can adsorb at water-oil interfaces to form viscoelastic interfacial films that retard or prevent coalescence. Here, we measure the evolving interfacial shear rheology of water-oil interfaces as asphaltenes adsorb. Generally, interfaces stiffen with time, and the response crosses over from viscous-dominated to elastic-dominated. However, significant variations in the stiffness evolution are observed in putatively identical experiments. Direct visualization of the interfacial strain field reveals significant heterogeneities within each evolving film, which appear to be an inherent feature of the asphaltene interfaces. Our results reveal the adsorption process and aged interfacial structure to be more complex than that previously described. The complexities likely impact the coalescence of asphaltene-stabilized droplets, and suggest new challenges in destabilizing crude oil emulsions.
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Affiliation(s)
- Chih-Cheng Chang
- Department of Chemical Engineering , University of California , Santa Barbara , California 93106 , United States
| | - Arash Nowbahar
- Department of Chemical Engineering , University of California , Santa Barbara , California 93106 , United States
| | - Vincent Mansard
- Department of Chemical Engineering , University of California , Santa Barbara , California 93106 , United States
- Laboratory for Analysis and Architecture of Systems , 31031 Toulouse , France
| | - Ian Williams
- Department of Chemical Engineering , University of California , Santa Barbara , California 93106 , United States
| | - Jodi Mecca
- The Dow Chemical Company , Midland , Michigan 48640 , United States
| | - Adam K Schmitt
- The Dow Chemical Company , Midland , Michigan 48640 , United States
| | - Tom H Kalantar
- The Dow Chemical Company , Midland , Michigan 48640 , United States
| | - Tzu-Chi Kuo
- The Dow Chemical Company , Midland , Michigan 48640 , United States
| | - Todd M Squires
- Department of Chemical Engineering , University of California , Santa Barbara , California 93106 , United States
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32
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Santos D, Souza W, Santana C, Lourenço E, Santos A, Nele M. Influence of Asphaltenes in the Properties of Liquid-Liquid Interface between Water and Linear Saturated Hydrocarbons. ACS OMEGA 2018; 3:3851-3856. [PMID: 31458626 PMCID: PMC6641628 DOI: 10.1021/acsomega.8b00102] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/28/2018] [Accepted: 03/23/2018] [Indexed: 06/10/2023]
Abstract
Molecular dynamics simulations have been performed on the interface between linear saturated hydrocarbons and water in the presence of an asphaltene molecule by measuring the properties such as mean square displacement, radial distribution function, density profile using ave/spatial command, and interfacial tension (IFT) by OPLS and TIP3P FF (force fields). The box of simulation contained one particle of asphaltene, 100 linear saturated hydrocarbons molecules, and 300 water molecules in mixture with interfacial appropriate positioning. The main results show that a small amount of asphaltene in the interface does not significantly alter the data of IFT and that the aliphatic and aromatic groups have preferred orientation.
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Affiliation(s)
- Dheiver Santos
- Centro
Universitário Tiradentes, Av. Comendador Gustavo Paiva, 5017—Cruz
das Almas, Maceió, Alagoas 57038-00, Brazil
| | - Walisson Souza
- Faculdade
Pio Décimo, Campus
III. Av. Pres. Tancredo Neves, 5655—Jabutiana, Aracaju, Sergipe 49075-010, Brazil
| | - Cesar Santana
- Núcleo
de Estudos em Sistemas Coloidais, Instituto
de Tecnologia e Pesquisa, PEP/UNIT, Aracaju, Sergipe 49032-490, Brazil
| | - Everton Lourenço
- Núcleo
de Estudos em Sistemas Coloidais, Instituto
de Tecnologia e Pesquisa, PEP/UNIT, Aracaju, Sergipe 49032-490, Brazil
| | - Alexandre Santos
- Universidade
Federal do Paraná, Rua Coronel Francisco Heráclito dos Santos, 210—Jardim
das Americas, Curitiba, Paraná 82590-300, Brazil
| | - Márcio Nele
- Escola
de Química, Universidade Federal
do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, 49032-490 Sergipe, Brazil
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33
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Screening of ionic liquids as green oilfield solvents for the potential removal of asphaltene from simulated oil: COSMO-RS model approach. J Mol Liq 2018. [DOI: 10.1016/j.molliq.2018.01.023] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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35
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Liu F, Akhmetkhanova N, Pauchard V. A simple numerical solution of diffusional equations for dilatational rheology of complex surfactant mixtures in any geometry. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2017.05.080] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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36
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Torres A, Amaya Suárez J, R. Remesal E, Márquez AM, Fernández Sanz J, Rincón Cañibano C. Adsorption of Prototypical Asphaltenes on Silica: First-Principles DFT Simulations Including Dispersion Corrections. J Phys Chem B 2017; 122:618-624. [DOI: 10.1021/acs.jpcb.7b05188] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Arturo Torres
- Department of Physical Chemistry, Universidad de Sevilla, 41012 Sevilla, Spain
| | - Javier Amaya Suárez
- Department of Physical Chemistry, Universidad de Sevilla, 41012 Sevilla, Spain
| | - Elena R. Remesal
- Department of Physical Chemistry, Universidad de Sevilla, 41012 Sevilla, Spain
| | - Antonio M. Márquez
- Department of Physical Chemistry, Universidad de Sevilla, 41012 Sevilla, Spain
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Chen XW, Yang DX, Zou Y, Yang XQ. Stabilization and functionalization of aqueous foams by Quillaja saponin-coated nanodroplets. Food Res Int 2017; 99:679-687. [PMID: 28784531 DOI: 10.1016/j.foodres.2017.06.045] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2017] [Revised: 06/05/2017] [Accepted: 06/20/2017] [Indexed: 10/19/2022]
Abstract
We report evidence for stabilization and functionalization of aqueous foams stabilized by Quillaja saponin (QS)-coated nanodroplets. In contrast to foams stabilized by QS, stabilized the foams of QS-coated nanodroplets showed superior foamability, stability and multi-functional characteristics. Specifically, the half-life time of the foam stabilized by nanodroplets was approximately 4 times that of saponin. The microstructure observation indicates the nanodroplets from assembly of saponin around oil droplet were strong attachment at the gas-liquid interface and stabling a large gas-liquid interfacial area in a hierarchical structure. The surface dynamic adsorption and large deformation rheology were performed, revealed that QS nanodroplets were almost irreversibly adsorbed at air-liquid interface and exhibited less surface desorption and high elastic-viscous response to a large mechanical deformation. These nanodroplets stabilized foams presented a large capacity for loading hydrophobic flavors and nutrients (e.g., β-carotene and curcumin), which could be used to create a new class of foam food products with sustained release of flavors and/or health benefit functionality.
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Affiliation(s)
- Xiao-Wei Chen
- Food Protein Research and Development Center, Department of Food Science and Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Dan-Xia Yang
- Food Protein Research and Development Center, Department of Food Science and Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Yuan Zou
- Food Protein Research and Development Center, Department of Food Science and Engineering, South China University of Technology, Guangzhou 510640, PR China
| | - Xiao-Quan Yang
- Food Protein Research and Development Center, Department of Food Science and Engineering, South China University of Technology, Guangzhou 510640, PR China; Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety, South China University of Technology, Guangzhou 510640, PR China.
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38
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Palchowdhury S, Bhargava B. Insights into the structure and dynamics at the hexadecane droplet–water interface in the presence of 1-alkanols as emulsifiers: Molecular dynamics studies. J Mol Liq 2017. [DOI: 10.1016/j.molliq.2017.03.082] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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39
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Vishal B, Ghosh P. Foaming in aqueous solutions of hexadecyltrimethylammonium bromide and silica nanoparticles: Measurement and analysis of rheological and interfacial properties. J DISPER SCI TECHNOL 2017. [DOI: 10.1080/01932691.2017.1295867] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- Badri Vishal
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Pallab Ghosh
- Department of Chemical Engineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
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40
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Asphaltene fractionation based on adsorption onto calcium carbonate: Part 2. Self-association and aggregation properties. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.11.035] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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41
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Zhang H, Yu K, Cayre OJ, Harbottle D. Interfacial Particle Dynamics: One and Two Step Yielding in Colloidal Glass. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:13472-13481. [PMID: 27993029 DOI: 10.1021/acs.langmuir.6b03586] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The yielding behavior of silica nanoparticles partitioned at an air-aqueous interface is reported. Linear viscoelasticity of the particle-laden interface can be retrieved via a time-dependent and electrolyte-dependent superposition, and the applicability of the "soft glassy rheology" (SGR) model is confirmed. With increasing electrolyte concentration (φelect) in the aqueous subphase, a nonergodic state is achieved with particle dynamics arrested first from attraction induced bonding bridges and then from the cage effect of particle jamming, manifesting in a two-step yielding process under large amplitude oscillation strain (LAOS). The Lissajous curves disclose a shear-induced in-cage particle redisplacement within oscillation cycles between the two yielding steps, exhibiting a "strain softening" transitioning to "strain stiffening" as the interparticle attraction increases. By varying φelect and the particle spreading concentration, φSiO2, a variety of phase transitions from fluid- to gel- and glass-like can be unified to construct a state diagram mapping the yielding behaviors from one-step to two-step before finally exhibiting one-step yielding at high φelect and φSiO2.
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Affiliation(s)
- Huagui Zhang
- School of Chemical and Process Engineering, University of Leeds , Leeds LS2 9JT, U.K
| | - Kai Yu
- School of Chemical and Process Engineering, University of Leeds , Leeds LS2 9JT, U.K
| | - Olivier J Cayre
- School of Chemical and Process Engineering, University of Leeds , Leeds LS2 9JT, U.K
| | - David Harbottle
- School of Chemical and Process Engineering, University of Leeds , Leeds LS2 9JT, U.K
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Pradilla D, Subramanian S, Simon S, Sjöblom J, Beurroies I, Denoyel R. Microcalorimetry Study of the Adsorption of Asphaltenes and Asphaltene Model Compounds at the Liquid-Solid Surface. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:7294-7305. [PMID: 27348137 DOI: 10.1021/acs.langmuir.6b00816] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
The adsorption of an acidic polyaromatic asphaltene model compound (C5PeC11) and indigenous C6-asphaltenes onto the liquid-solid surface is studied. Model compound C5PeC11 exhibits a similar type of adsorption with a plateau adsorbed amount as C6-asphaltenes onto three surfaces (silica, calcite, and stainless steel). Model compound BisAC11, with aliphatic end groups and no acidic functionality, does not adsorb at the liquid-silica surface, indicating the importance of polar interactions on adsorption. The values of the adsorption enthalpy characterized by the ΔHz parameter (the enthalpy at zero coverage) indicate that the type of adsorption and the driving force depend on the surface, a key feature when discussing asphaltene deposition. The adsorption of C5PeC11 onto silica is shown to be driven primarily by H bonding (ΔHz = -34.9 kJ/mol), unlike adsorption onto calcite where polar van der Waals and acidic/basic interactions are thought to be predominant (ΔHz = -23.5 kJ/mol). Interactions between C5PeC11 and stainless steel are found to be weak (ΔHz = -7.7 kJ/mol). Comparing C6-asphaltenes and their esterified counterpart shows that adsorption at the liquid-solid surface is not influenced by the formation of H bonds. This was evidenced by the similar adsorbed amounts obtained. Finally, C5PeC11 captures, to a certain extent, the adsorption interactions of asphaltenes present at the calcite-oil and stainless steel-oil surfaces.
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Affiliation(s)
- Diego Pradilla
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU) , NO-7491 Trondheim, Norway
| | - Sreedhar Subramanian
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU) , NO-7491 Trondheim, Norway
| | - Sébastien Simon
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU) , NO-7491 Trondheim, Norway
| | - Johan Sjöblom
- Ugelstad Laboratory, Department of Chemical Engineering, Norwegian University of Science and Technology (NTNU) , NO-7491 Trondheim, Norway
| | - Isabelle Beurroies
- Aix Marseille Université, CNRS, MADIREL UMR 7246, 13397 Marseille cedex 20, France
| | - Renaud Denoyel
- Aix Marseille Université, CNRS, MADIREL UMR 7246, 13397 Marseille cedex 20, France
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