Simulation of Pressure Swing Adsorber Reactor for Isomerization of N-Paraffins

In this thesis, a non-isothermal pressure swing adsorber-reactor (PSAR) model for the isomerization of n-paraffins is developed. PSAR is a new concept that combines the isomerization of normal paraffins to iso-paraffins and separation of the iso-paraffins from mixtures of n/iso-paraffins by using pr...

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Main Author:	Lai, Yin Ling
Format:	Thesis
Language:	English English
Published:	2004
Subjects:	Isomeration Alkanes
Online Access:	http://psasir.upm.edu.my/id/eprint/158/1/549500_t_fk_2004_52.pdf
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spelling	my-upm-ir.1582013-05-27T06:46:05Z Simulation of Pressure Swing Adsorber Reactor for Isomerization of N-Paraffins 2004-10 Lai, Yin Ling In this thesis, a non-isothermal pressure swing adsorber-reactor (PSAR) model for the isomerization of n-paraffins is developed. PSAR is a new concept that combines the isomerization of normal paraffins to iso-paraffins and separation of the iso-paraffins from mixtures of n/iso-paraffins by using pressure swing adsorption (PSA). The isomerization of normal-pentane (n-C5) to iso-pentane (i-C5) is used to illustrate the concept of PSAR. The PSAR column is packed with a layer of catalyst (Y-zeolite) and followed by a layer of adsorbent (zeolite 5A). The mathematical model is solved numerically using the method of lines where the partial differential equations (PDEs) are partially discretized and reduced to ordinary differential equations (ODEs).Orthogonal collocation (OC) method is used as the discretization method.The computer programme is written in FORTRAN 99. The numerical implementation of the developed PSAR is verified by adjusting the ratio of the length of the reactor section to the total length of the PSAR columnWhen approaches 0, the PSAR model is reduced to PSA separation model. When approaches 1,the model is reduced back to steady state reactor model. The optimum value of is found to be 0.6. The yield of the desired product increases by about 13 % with the optimum value of = 0.6 compared to the conventional isomerization reactor.The appropriate thermal operating condition for the PSAR is isothermal condition. To approach the isothermal operating condition, the heat transfer in the PSA section is critical because it determines the uptake of the unreacted reactant in the reaction/adsorption step and the temperature of the effluent at the end of the PSA section in the desorption/reaction step.The developed non-isothermal PSAR model is therefore useful for the design, scale-up, and control and optimization purposes Isomeration Alkanes 2004-10 Thesis http://psasir.upm.edu.my/id/eprint/158/ http://psasir.upm.edu.my/id/eprint/158/1/549500_t_fk_2004_52.pdf application/pdf en public masters Universiti Putra Malaysia Isomeration Alkanes Faculty of Engineering English
institution	Universiti Putra Malaysia
collection	PSAS Institutional Repository
language	English English
topic	Isomeration Alkanes
spellingShingle	Isomeration Alkanes Lai, Yin Ling Simulation of Pressure Swing Adsorber Reactor for Isomerization of N-Paraffins
description	In this thesis, a non-isothermal pressure swing adsorber-reactor (PSAR) model for the isomerization of n-paraffins is developed. PSAR is a new concept that combines the isomerization of normal paraffins to iso-paraffins and separation of the iso-paraffins from mixtures of n/iso-paraffins by using pressure swing adsorption (PSA). The isomerization of normal-pentane (n-C5) to iso-pentane (i-C5) is used to illustrate the concept of PSAR. The PSAR column is packed with a layer of catalyst (Y-zeolite) and followed by a layer of adsorbent (zeolite 5A). The mathematical model is solved numerically using the method of lines where the partial differential equations (PDEs) are partially discretized and reduced to ordinary differential equations (ODEs).Orthogonal collocation (OC) method is used as the discretization method.The computer programme is written in FORTRAN 99. The numerical implementation of the developed PSAR is verified by adjusting the ratio of the length of the reactor section to the total length of the PSAR columnWhen approaches 0, the PSAR model is reduced to PSA separation model. When approaches 1,the model is reduced back to steady state reactor model. The optimum value of is found to be 0.6. The yield of the desired product increases by about 13 % with the optimum value of = 0.6 compared to the conventional isomerization reactor.The appropriate thermal operating condition for the PSAR is isothermal condition. To approach the isothermal operating condition, the heat transfer in the PSA section is critical because it determines the uptake of the unreacted reactant in the reaction/adsorption step and the temperature of the effluent at the end of the PSA section in the desorption/reaction step.The developed non-isothermal PSAR model is therefore useful for the design, scale-up, and control and optimization purposes
format	Thesis
qualification_level	Master's degree
author	Lai, Yin Ling
author_facet	Lai, Yin Ling
author_sort	Lai, Yin Ling
title	Simulation of Pressure Swing Adsorber Reactor for Isomerization of N-Paraffins
title_short	Simulation of Pressure Swing Adsorber Reactor for Isomerization of N-Paraffins
title_full	Simulation of Pressure Swing Adsorber Reactor for Isomerization of N-Paraffins
title_fullStr	Simulation of Pressure Swing Adsorber Reactor for Isomerization of N-Paraffins
title_full_unstemmed	Simulation of Pressure Swing Adsorber Reactor for Isomerization of N-Paraffins
title_sort	simulation of pressure swing adsorber reactor for isomerization of n-paraffins
granting_institution	Universiti Putra Malaysia
granting_department	Faculty of Engineering
publishDate	2004
url	http://psasir.upm.edu.my/id/eprint/158/1/549500_t_fk_2004_52.pdf
_version_	1747810163144785920

Simulation of Pressure Swing Adsorber Reactor for Isomerization of N-Paraffins

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