1
|
Charoenpanich T, Anantawaraskul S, Soares JBP, Wongmahasirikun P, Shiohara S. Modeling Propylene Polymerization in a Two‐Reactor System: Model Development and Parameter Estimation. MACROMOL REACT ENG 2022. [DOI: 10.1002/mren.202200027] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Thanutchoke Charoenpanich
- Department of Chemical Engineering Faculty of Engineering Kasetsart University 50 Ngam Wong Wan Rd. Chatuchak Bangkok 10900 Thailand
| | - Siripon Anantawaraskul
- Department of Chemical Engineering Faculty of Engineering Kasetsart University 50 Ngam Wong Wan Rd. Chatuchak Bangkok 10900 Thailand
- Center for Advanced Studies in Nanotechnology and Its Applications in Chemical Food and Agricultural Industries Kasetsart University Bangkok 10900 Thailand
| | - João B. P. Soares
- Department of Chemical and Materials Engineering University of Alberta Edmonton Alberta Canada
| | - Phonpimon Wongmahasirikun
- Thai Polyethylene Co., Ltd 10 I‐1 Road, Map Ta Phut Industrial Estate, Muang District Rayong 21150 Thailand
| | - Supawadee Shiohara
- Thai Polyethylene Co., Ltd 10 I‐1 Road, Map Ta Phut Industrial Estate, Muang District Rayong 21150 Thailand
| |
Collapse
|
2
|
Salami BA, Oyehan TA, Gambo Y, Badmus SO, Tanimu G, Adamu S, Lateef SA, Saleh TA. Technological trends in nanosilica synthesis and utilization in advanced treatment of water and wastewater. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2022; 29:42560-42600. [PMID: 35380322 DOI: 10.1007/s11356-022-19793-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 03/14/2022] [Indexed: 06/14/2023]
Abstract
Water and wastewater treatment applications stand to benefit immensely from the design and development of new materials based on silica nanoparticles and their derivatives. Nanosilica possesses unique properties, including low toxicity, chemical inertness, and excellent biocompatibility, and can be developed from a variety of sustainable precursor materials. Herein, we provide an account of the recent advances in the synthesis and utilization of nanosilica for wastewater treatment. This review covers key physicochemical aspects of several nanosilica materials and a variety of nanotechnology-enabled wastewater treatment techniques such as adsorption, separation membranes, and antimicrobial applications. It also discusses the prospective design and tuning options for nanosilica production, such as size control, morphological tuning, and surface functionalization. Informative discussions on nanosilica production from agricultural wastes have been offered, with a focus on the synthesis methodologies and pretreatment requirements for biomass precursors. The characterization of the different physicochemical features of nanosilica materials using critical surface analysis methods is discussed. Bio-hybrid nanosilica materials have also been highlighted to emphasize the critical relevance of environmental sustainability in wastewater treatment. To guarantee the thoroughness of the review, insights into nanosilica regeneration and reuse are provided. Overall, it is envisaged that this work's insights and views will inspire unique and efficient nanosilica material design and development with robust properties for water and wastewater treatment applications.
Collapse
Affiliation(s)
- Babatunde Abiodun Salami
- Interdisciplinary Research Center for Construction and Building Materials, Research Institute, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.
| | - Tajudeen Adeyinka Oyehan
- Geosciences Department, College of Petroleum Engineering and Geosciences, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
| | - Yahya Gambo
- Chemical Engineering Department, King Fahd University of Petroleum & Minerals, Dhahran, Saudi Arabia
| | - Suaibu O Badmus
- Center for Integrative Petroleum Research, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Gazali Tanimu
- Interdisciplinary Research Center for Refining and Advanced Chemicals, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Sagir Adamu
- Chemical Engineering Department and Interdisciplinary Research Center for Refining & Advanced Chemicals, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia
| | - Saheed A Lateef
- Department of Chemical Engineering, University of South Carolina, Columbia, SC, USA
| | - Tawfik A Saleh
- Chemistry Department, King Fahd University of Petroleum and Minerals, Dhahran, 31261, Saudi Arabia.
| |
Collapse
|
3
|
Patil HR, Karthikeyan S, Kote V, Sengupta P, Samanta P, Kadam P, Venkateswaran N, Gupta VK. An insight into Ziegler–Natta catalyst active site distribution for polyolefins: application of jitter differential evolution. Polym Bull (Berl) 2022. [DOI: 10.1007/s00289-022-04107-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
4
|
Atiqullah M, Al‐Asiri HS. Polyolefin Catalyst Research: A Product‐Driven Industrial Perspective. CHEM REC 2022; 22:e202100321. [DOI: 10.1002/tcr.202100321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 11/07/2022]
Affiliation(s)
- Muhammad Atiqullah
- Interdisciplinary Research Center for Refining & Advanced Chemicals (IRCRAC) Research Institute King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - Hassan S. Al‐Asiri
- Interdisciplinary Research Center for Refining & Advanced Chemicals (IRCRAC) Research Institute King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| |
Collapse
|
5
|
B. Cordeiro S, V. Marques MDF. Evaluation of Bis(imino)pyridine Iron Catalyst on Heterogeneous Ethylene Polymerization. CHEMISTRY & CHEMICAL TECHNOLOGY 2020. [DOI: 10.23939/chcht14.02.185] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
6
|
Abstract
Crude oil and refinery products are transported worldwide to meet human energy needs. During transportation via pipeline, huge pumping power is required to overcome the frictional pressure drop and the associated drag along the pipeline. The reduction of both is of great interest to industry and academia. Highly expensive ultrahigh molecular weight (UHMW, MW a million Dalton) drag reducing polymers (DRPs) are currently used to address this problem. The present paper, therefore, emphasizes particularly the development of a high-performance catalyst system that synthesizes DRPs (using higher alpha-olefins)—a highly promising cost reduction alternative. This homogeneous catalyst system features a new concept that uses a cost-effective titanium-based Ziegler–Natta precatalyst and a cocatalystLewis base complex having both steric hindrance (around N heteroatom) and electronic effect. This novel work, which involves precatalyst–cocatalyst molecular separation and cocatalystmonophenyl amine association-dissociation phenomena, already generated several US patents. The subject catalyst prepares UHMW DRPs at room temperature, avoiding the use of zero and sub-zero temperatures. The resulting product almost tripled the rate of transportation of a selected grade of refinery product and saved about 50% pumping energy at ppm level pipeline concentration. It is also very easily soluble. Hence, massive modification of existing pipeline will be unnecessary. This will save additional infrastructure cost. This paper also summarizes challenges facing the development of improved heterogeneous catalysts, dispersed polymerization process, molecular simulation-based DRP product formulation, and model/theory of turbulent mixing and dispersion in the transportation pipeline setting.
Collapse
|
7
|
Velthoen MEZ, Muñoz-Murillo A, Bouhmadi A, Cecius M, Diefenbach S, Weckhuysen BM. The Multifaceted Role of Methylaluminoxane in Metallocene-Based Olefin Polymerization Catalysis. Macromolecules 2018; 51:343-355. [PMID: 29910511 PMCID: PMC5997399 DOI: 10.1021/acs.macromol.7b02169] [Citation(s) in RCA: 62] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 12/02/2017] [Indexed: 01/26/2023]
Abstract
![]()
In
single-site olefin polymerization catalysis, a large excess
of cocatalyst is often required for the generation of highly active
catalysts, but the reason for this is unclear. In this work, fundamental
insight into the multifaceted role of cocatalyst methylaluminoxane
(MAO) in the activation, deactivation, and stabilization of group
4 metallocenes in the immobilized single-site olefin polymerization
catalyst was gained. Employing probe molecule FT-IR spectroscopy,
it was found that weak Lewis acid sites, inherent to the silica-supported
MAO cocatalyst, are the main responsible species for the genesis of
active metallocenes for olefin polymerization. These weak Lewis acid
sites are the origin of AlMe2+ groups. Deactivation
of metallocenes is caused by the presence of silanol groups on the
silica support. Interaction of the catalyst precursor with these silanol
groups leads to the irreversible formation of inactive metallocenes.
Importantly, a high concentration of MAO (14 wt% Al) on the silica
support is necessary to keep the metallocenes immobilized, hence preventing
metallocene leaching and consequent reactor fouling. Increasing the
loading of the MAO cocatalyst leads to larger amounts of AlMe2+, fewer silanol groups, and less metallocene leaching,
which all result in higher olefin polymerization activity.
Collapse
Affiliation(s)
- Marjolein E Z Velthoen
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Ara Muñoz-Murillo
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| | - Abdelkbir Bouhmadi
- Albemarle Europe SPRL, Parc Scientifique de LLN, Rue du Bosquet 9, B-1348 Louvain-la-Neuve, Belgium
| | - Michaël Cecius
- Albemarle Europe SPRL, Parc Scientifique de LLN, Rue du Bosquet 9, B-1348 Louvain-la-Neuve, Belgium
| | - Steve Diefenbach
- Albemarle Corporation, Gulf States Road, Baton Rouge, Louisiana 70801, United States
| | - Bert M Weckhuysen
- Inorganic Chemistry and Catalysis Group, Debye Institute for Nanomaterials Science, Utrecht University, Universiteitsweg 99, 3584 CG Utrecht, The Netherlands
| |
Collapse
|
8
|
Gies AP, Kuhlman RL, Zuccaccia C, Macchioni A, Keaton RJ. Mass Spectrometric Mechanistic Investigation of Ligand Modification in Hafnocene-Catalyzed Olefin Polymerization. Organometallics 2017. [DOI: 10.1021/acs.organomet.7b00293] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Anthony P. Gies
- Core R&D, The Dow Chemical Company, 2301 North Brazosport Boulevard, B-1820, Freeport, Texas 77541, United States
| | - Roger L. Kuhlman
- Univation Technologies, LLC, Freeport, Texas 77541, United States
| | - Cristiano Zuccaccia
- Department
of Chemistry, Biology and Biotechnology, University of Perugia and CIRCC, Via Elce di sotto, 8, I-06123 Perugia, Italy
| | - Alceo Macchioni
- Department
of Chemistry, Biology and Biotechnology, University of Perugia and CIRCC, Via Elce di sotto, 8, I-06123 Perugia, Italy
| | - Richard J. Keaton
- Core R&D, The Dow Chemical Company, 2301 North Brazosport Boulevard, B-1820, Freeport, Texas 77541, United States
| |
Collapse
|
9
|
Zuccaccia C, Tensi L, Kuhlman RL, Gies AP, Macchioni A. C–H Activation and Olefin Insertion as Sources of Multiple Sites in Olefin Polymerization Catalyzed by CpAlkylHf(IV) Complexes. ACS Catal 2016. [DOI: 10.1021/acscatal.6b03135] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Cristiano Zuccaccia
- Dipartimento
di Chimica, Biologia e Biotecnologie and CIRCC, Università degli Studi di Perugia, Via Elce di Sotto, 8-06123 Perugia, Italy
| | - Leonardo Tensi
- Dipartimento
di Chimica, Biologia e Biotecnologie and CIRCC, Università degli Studi di Perugia, Via Elce di Sotto, 8-06123 Perugia, Italy
| | - Roger L. Kuhlman
- Univation
Technologies
LLC, Freeport, Texas 77541, United States
| | - Anthony P. Gies
- Analytical Sciences Core R&D, The Dow Chemical Company, Freeport, Texas 77541, United States
| | - Alceo Macchioni
- Dipartimento
di Chimica, Biologia e Biotecnologie and CIRCC, Università degli Studi di Perugia, Via Elce di Sotto, 8-06123 Perugia, Italy
| |
Collapse
|
10
|
Adamu S, Atiqullah M, Malaibari ZO, Al-Harthi MA, Emwas AHM, Ul-Hamid A. Metallocene-catalyzed ethylene−α-olefin isomeric copolymerization: A perspective from hydrodynamic boundary layer mass transfer and design of MAO anion. J Taiwan Inst Chem Eng 2016. [DOI: 10.1016/j.jtice.2015.10.031] [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]
|
11
|
Atiqullah M, Adamu S, Malaibari ZO, Al-Harthi MA, Emwas AHM. (nBuCp)2ZrCl2-catalyzed ethylene-4M1P copolymerization: Copolymer backbone structure, melt behavior, and crystallization. AIChE J 2016. [DOI: 10.1002/aic.15159] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Muhammad Atiqullah
- Center for Refining and Petrochemicals, Research Institute, King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Sagir Adamu
- Dept. of Chemical Engineering; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Zuhair O. Malaibari
- Dept. of Chemical Engineering; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Mamdouh A. Al-Harthi
- Dept. of Chemical Engineering; King Fahd University of Petroleum & Minerals; Dhahran 31261 Saudi Arabia
| | - Abdul-Hamid M. Emwas
- NMR Core Laboratory, King Abdullah University of Science & Technology; Thuwal 23955-6900 Saudi Arabia
| |
Collapse
|
12
|
Canetti M, Leone G, Ricci G, Bertini F. Structure and thermal properties of ethylene/4-methyl-1-pentene copolymers: Effect of comonomer and monomer sequence distribution. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.10.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
13
|
Kebritchi A, Nekoomansh M, Mohammadi F, Khonakdar HA. The ablative behavior of high linear chains and its role in the thermal stability of polyethylene: a combined P-TREF−TGA study. POLYM INT 2015. [DOI: 10.1002/pi.4918] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Abbas Kebritchi
- Iran Polymer and Petrochemical Institute; 14965-115 Tehran Iran
| | | | | | - Hossein Ali Khonakdar
- Iran Polymer and Petrochemical Institute; 14965-115 Tehran Iran
- Leibniz Institut für Polymerforschung Dresden e.V.; D-01069 Dresden Germany
| |
Collapse
|
14
|
Müller A, Michell R, Pérez R, Lorenzo A. Successive Self-nucleation and Annealing (SSA): Correct design of thermal protocol and applications. Eur Polym J 2015. [DOI: 10.1016/j.eurpolymj.2015.01.015] [Citation(s) in RCA: 104] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|