1
|
Simulation and optimization of axial-flow and radial-flow reactors for dehydrogenation of ethylbenzene into styrene based on a heterogeneous kinetic model. Chem Eng Sci 2021. [DOI: 10.1016/j.ces.2021.116805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
|
2
|
Peters TA, Stange M, Bredesen R. Flux-Reducing Tendency of Pd-Based Membranes Employed in Butane Dehydrogenation Processes. MEMBRANES 2020; 10:E291. [PMID: 33081363 PMCID: PMC7650750 DOI: 10.3390/membranes10100291] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/29/2020] [Revised: 10/12/2020] [Accepted: 10/14/2020] [Indexed: 11/20/2022]
Abstract
We report on the effect of butane and butylene on hydrogen permeation through thin state-of-the-art Pd-Ag alloy membranes. A wide range of operating conditions, such as temperature (200-450 °C) and H2/butylene (or butane) ratio (0.5-3), on the flux-reducing tendency were investigated. In addition, the behavior of membrane performance during prolonged exposure to butylene was evaluated. In the presence of butane, the flux-reducing tendency was found to be limited up to the maximum temperature investigated, 450 °C. Compared to butane, the flux-reducing tendency in the presence of butylene was severe. At 400 °C and 20% butylene, the flux decreases by ~85% after 3 h of exposure but depends on temperature and the H2/butylene ratio. In terms of operating temperature, an optimal performance was found at 250-300 °C with respect to obtaining the highest absolute hydrogen flux in the presence of butylene. At lower temperatures, the competitive adsorption of butylene over hydrogen accounts for a large initial flux penalty.
Collapse
Affiliation(s)
- Thijs A. Peters
- SINTEF Industry, P.O. Box 124 Blindern, N-0314 Oslo, Norway; (M.S.); (R.B.)
| | | | | |
Collapse
|
3
|
Shelepova EV, Ilina LY, Vedyagin AA. Theoretical predictions on dehydrogenation of methanol over copper-silica catalyst in a membrane reactor. Catal Today 2019. [DOI: 10.1016/j.cattod.2017.11.023] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
4
|
Energy efficiency analysis of styrene production by adiabatic ethylbenzene dehydrogenation using exergy analysis and heat integration. POLISH JOURNAL OF CHEMICAL TECHNOLOGY 2018. [DOI: 10.2478/pjct-2018-0006] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract
Styrene is a valuable commodity for polymer industries. The main route for producing styrene by dehydrogenation of ethylbenzene consumes a substantial amount of energy because of the use of high-temperature steam. In this work, the process energy requirements and recovery are studied using Exergy analysis and Heat Integration (HI) based on Pinch design method. The amount of steam plays a key role in the trade-off between Styrene yield and energy savings. Therefore, optimizing the operating conditions for energy reduction is infeasible. Heat integration indicated an insignificant reduction in the net energy demand and exergy losses, but 24% and 34% saving in external heating and cooling duties, respectively. When the required steam is generated by recovering the heat of the hot reactor effluent, a considerable saving in the net energy demand, as well as the heating and cooling utilities, can be achieved. Moreover, around 68% reduction in the exergy destruction is observed.
Collapse
|
5
|
Rokhgireh A, Farsi M, Javidi M. Steady State Modeling and Optimization of Styrene Production in an Industrial Axial Flow Adiabatic Reactor. THEORETICAL FOUNDATIONS OF CHEMICAL ENGINEERING 2018. [DOI: 10.1134/s0040579517060148] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
6
|
Optimal dynamic trajectory of feed temperature and steam injection rate in ethylbenzene dehydrogenation process during process run time. J Taiwan Inst Chem Eng 2017. [DOI: 10.1016/j.jtice.2017.10.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
7
|
Evaluation of the Parameters and Conditions of Process in the Ethylbenzene Dehydrogenation with Application of Permselective Membranes to Enhance Styrene Yield. ScientificWorldJournal 2016; 2016:4949183. [PMID: 27069982 PMCID: PMC4812488 DOI: 10.1155/2016/4949183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2015] [Revised: 02/01/2016] [Accepted: 02/09/2016] [Indexed: 11/17/2022] Open
Abstract
Styrene is an important monomer in the manufacture of thermoplastic. Most of it is produced by the catalytic dehydrogenation of ethylbenzene. In this process that depends on reversible reactions, the yield is usually limited by the establishment of thermodynamic equilibrium in the reactor. The styrene yield can be increased by using a hybrid process, with reaction and separation simultaneously. It is proposed using permselective composite membrane to remove hydrogen and thus suppress the reverse and secondary reactions. This paper describes the simulation of a dehydrogenation process carried out in a tubular fixed-bed reactor wrapped in a permselective composite membrane. A mathematical model was developed, incorporating the various mass transport mechanisms found in each of the membrane layers and in the catalytic fixed bed. The effects of the reactor feed conditions (temperature, steam-to-oil ratio, and the weight hourly space velocity), the fixed-bed geometry (length, diameter, and volume), and the membrane geometry (thickness of the layers) on the styrene yield were analyzed. These variables were used to determine experimental conditions that favour the production of styrene. The simulation showed that an increase of 40.98% in the styrene yield, compared to a conventional fixed-bed process, could be obtained by wrapping the reactor in a permselective composite membrane.
Collapse
|
8
|
Ferreira NA, Filho JM, Oliveira AC. Porous ternary Fe-based catalysts for the oxidative dehydrogenation of ethylbenzene in the presence (absence) of carbon dioxide. RSC Adv 2015. [DOI: 10.1039/c4ra14572k] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Porous ternary Fe-based catalysts were characterized and their catalytic properties through the oxidative dehydrogenation of ethylbenzene in the presence (ODH) or absence (DH) of carbon dioxide were investigated.
Collapse
Affiliation(s)
| | - Josué M. Filho
- Universidade Federal do Ceará
- Departamento de Física
- Fortaleza
- Brazil
| | | |
Collapse
|
9
|
Gomez Sanz S, McMillan L, McGregor J, Zeitler JA, Al-Yassir N, Al-Khattaf S, Gladden LF. A new perspective on catalytic dehydrogenation of ethylbenzene: the influence of side-reactions on catalytic performance. Catal Sci Technol 2015. [DOI: 10.1039/c5cy00457h] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The dehydrogenation of ethylbenzene to styrene over CrOx/Al2O3 proceeds via a partially oxidative mechanism due to in situ formation of CO2. Coke formation also plays a key role in dictating catalytic performance.
Collapse
Affiliation(s)
- Sara Gomez Sanz
- University of Cambridge
- Department of Chemical Engineering and Biotechnology
- Cambridge CB2 3RA
- UK
| | - Liam McMillan
- University of Cambridge
- Department of Chemical Engineering and Biotechnology
- Cambridge CB2 3RA
- UK
| | - James McGregor
- University of Cambridge
- Department of Chemical Engineering and Biotechnology
- Cambridge CB2 3RA
- UK
| | - J. Axel Zeitler
- University of Cambridge
- Department of Chemical Engineering and Biotechnology
- Cambridge CB2 3RA
- UK
| | - Nabil Al-Yassir
- King Fahd University of Petroleum & Minerals
- Dhahran 31261
- Saudi Arabia
| | | | - Lynn F. Gladden
- University of Cambridge
- Department of Chemical Engineering and Biotechnology
- Cambridge CB2 3RA
- UK
| |
Collapse
|
10
|
Farsi M, Rokhgireh A, Javidi M. Modelling and optimization of simultaneous styrene and hydrogen production in an industrial hydrogen-permselective membrane reactor. CAN J CHEM ENG 2014. [DOI: 10.1002/cjce.22103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Mohammad Farsi
- Department of Chemical Engineering; School of Chemical and Petroleum Engineering; Shiraz University; Shiraz Iran
| | - Amir Rokhgireh
- Department of Chemical Engineering; School of Chemical and Petroleum Engineering; Shiraz University; Shiraz Iran
| | - Majid Javidi
- Department of Chemical Engineering; School of Chemical and Petroleum Engineering; Shiraz University; Shiraz Iran
| |
Collapse
|
11
|
Abashar MEE, Elnashaie SSEH. Investigation of Multistage Circulating Fast Fluidized Bed Membrane Reformers for Production of Ultraclean Hydrogen and Syngas. Ind Eng Chem Res 2014. [DOI: 10.1021/ie402356b] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Mohamed E. E. Abashar
- Department
of Chemical Engineering, College of Engineering, King Saud University, P.O. Box 800, Riyadh 11421, Saudi Arabia
| | - Said S. E. H. Elnashaie
- Department
of Chemical and Environmental Engineering, University of Putra Malaysia,Serdang, Selangor 43400, Malaysia
| |
Collapse
|
12
|
Bachiller A, Ardissone D, Castro Luna AE, Iriarte ME. Oxydehydrogenation of Ethylbenzene to Styrene: Membrane Reactor Analysis and Design. INTERNATIONAL JOURNAL OF CHEMICAL REACTOR ENGINEERING 2014. [DOI: 10.1515/ijcre-2013-0134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The preliminary design of shell-and-tubes membrane reactor for oxidative dehydrogenation of ethylbenzene to styrene on a P–O–Ni–Mn/alumina catalyst (on an industrial scale) is presented. A one-dimensional pseudo-homogeneous model is used. The membrane is an inorganic and non-perm-selective one; nevertheless, it enables an oxygen flow high enough to ensure the progress of the reaction. The influence of different disturbances (feed composition, pressure and temperature) on the evolution of conversion of ethylbenzene and selectivity to styrene is analyzed. Membrane reactor allows achieving high selectivity to styrene and moderate conversion of ethylbenzene, keeping a low oxygen concentration on the reaction side. Styrene production overcomes the expected amount to carry out the design.
Collapse
|
13
|
Abo-Ghander NS, Logist F, Grace JR, Van Impe JF, Elnashaie SS, Lim CJ. Comparison of diffusion models in the modeling of a catalytic membrane fixed bed reactor coupling dehydrogenation of ethylbenzene with hydrogenation of nitrobenzene. Comput Chem Eng 2012. [DOI: 10.1016/j.compchemeng.2011.10.007] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
|
14
|
Gosiewski K, Tańczyk M. Applicability of membrane reactor for WGS coal derived gas processing: Simulation-based analysis. Catal Today 2011. [DOI: 10.1016/j.cattod.2010.11.042] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
|
15
|
Koc R, Kazantzis NK, Ma YH. Process safety aspects in water-gas-shift (WGS) membrane reactors used for pure hydrogen production. J Loss Prev Process Ind 2011. [DOI: 10.1016/j.jlp.2011.06.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
16
|
Dogan M, Dogu G. Hydrogen diffusivity enhancement in alumina pellets due to impregnated palladium. CHEM ENG COMMUN 2010. [DOI: 10.1080/00986440302122] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Meltem Dogan
- a Chemical Engineering Department , Gazi University , Ankara, Turkey
| | - Gülsen Dogu
- a Chemical Engineering Department , Gazi University , Ankara, Turkey
| |
Collapse
|
17
|
Economic feasibility of silica and palladium composite membranes for industrial dehydrogenation reactions. Chem Eng Res Des 2010. [DOI: 10.1016/j.cherd.2010.01.013] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
|
18
|
Abo-Ghander NS, Logist F, Grace JR, Van Impe JF, Elnashaie SS, Lim CJ. Optimal design of an autothermal membrane reactor coupling the dehydrogenation of ethylbenzene to styrene with the hydrogenation of nitrobenzene to aniline. Chem Eng Sci 2010. [DOI: 10.1016/j.ces.2010.02.007] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
|
19
|
Abo-Ghander NS, Grace JR, Elnashaie SS, Lim CJ. Modeling of a novel membrane reactor to integrate dehydrogenation of ethylbenzene to styrene with hydrogenation of nitrobenzene to aniline. Chem Eng Sci 2008. [DOI: 10.1016/j.ces.2007.12.007] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
20
|
|
21
|
Theoretical analysis of conversion enhancement in isothermal polymeric catalytic membrane reactors. Catal Today 2006. [DOI: 10.1016/j.cattod.2005.12.009] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
|
22
|
|
23
|
Goto S, Tagawa T, Assabumrungrat S, Praserthdam P. Simulation of membrane microreactor for fuel cell with methane feed. Catal Today 2003. [DOI: 10.1016/s0920-5861(03)00236-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
24
|
Fukuhara C, Igarashi A. Two-Dimensional Simulation of a Membrane Reactor for Dehydrogenation of Ethylbenzene, Considering Heat and Mass Transfer. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2003. [DOI: 10.1252/jcej.36.530] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Choji Fukuhara
- Department of Chemical Engineering on Biological Environment, Faculty of Engineering, Hachinohe Institute of Technology
| | - Akira Igarashi
- Department of Environmental Chemical Engineering, Faculty of Engineering, Kogakuin University
| |
Collapse
|
25
|
Sousa JM, Cruz P, Magalhães FD, Mendes A. Modeling catalytic membrane reactors using an adaptive wavelet-based collocation method. J Memb Sci 2002. [DOI: 10.1016/s0376-7388(02)00175-8] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
26
|
Itoh H, Izumiya T, Tagawa T, Goto S. Experimental Study of External Catalytic Packed-Bed Palladium Membrane Reactor with Baffle Rings. KAGAKU KOGAKU RONBUN 2002. [DOI: 10.1252/kakoronbunshu.28.656] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hajime Itoh
- Department of Chemical Engineering, Nagoya University
| | - Takeo Izumiya
- Department of Chemical Engineering, Nagoya University
| | | | - Shigeo Goto
- Department of Chemical Engineering, Nagoya University
| |
Collapse
|
27
|
Assabumrungrat S, Suksomboon K, Praserthdam P, Tagawa T, Goto S. Simulation of a Palladium Membrane Reactor for Dehydrogenation of Ethylbenzene. JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 2002. [DOI: 10.1252/jcej.35.263] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Suttichai Assabumrungrat
- Research Center on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Chulalongkorn University
| | - Kobkan Suksomboon
- Research Center on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Chulalongkorn University
| | - Piyasan Praserthdam
- Research Center on Catalysis and Catalytic Reaction Engineering, Department of Chemical Engineering, Chulalongkorn University
| | | | - Shigeo Goto
- Department of Chemical Engineering, Nagoya University
| |
Collapse
|
28
|
Hwang GJ, Onuki K. Simulation study on the catalytic decomposition of hydrogen iodide in a membrane reactor with a silica membrane for the thermochemical water-splitting IS process. J Memb Sci 2001. [DOI: 10.1016/s0376-7388(01)00540-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
29
|
|
30
|
The effect of direction of hydrogen permeation on the rate through a composite palladium membrane. J Memb Sci 2000. [DOI: 10.1016/s0376-7388(00)00405-1] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
31
|
Quicker P, Höllein V, Dittmeyer R. Catalytic dehydrogenation of hydrocarbons in palladium composite membrane reactors. Catal Today 2000. [DOI: 10.1016/s0920-5861(99)00259-x] [Citation(s) in RCA: 59] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
32
|
|
33
|
Factors controlling the performance of catalytic dehydrogenation of ethylbenzene in palladium composite membrane reactors. Chem Eng Sci 1999. [DOI: 10.1016/s0009-2509(99)00048-2] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
|