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Research Article
Performance Comparison of Different Separation Systems for H2 Recovery from Catalytic Reforming Unit Off-Gas Streams
Article first published online: 7 FEB 2013
DOI: 10.1002/ceat.201200558
Copyright © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Additional Information
How to Cite
Mivechian, A. and Pakizeh, M. (2013), Performance Comparison of Different Separation Systems for H2 Recovery from Catalytic Reforming Unit Off-Gas Streams. Chem. Eng. Technol., 36: 519–527. doi: 10.1002/ceat.201200558
Publication History
- Issue published online: 25 FEB 2013
- Article first published online: 7 FEB 2013
- Manuscript Revised: 14 JAN 2013
- Manuscript Accepted: 14 JAN 2013
- Manuscript Received: 13 OCT 2012
- Abstract
- References
- Cited By
Keywords:
- Gas absorption;
- Gas permeation;
- Hydrogen recovery;
- Pressure swing adsorption
Abstract
The performance of pressure swing adsorption (PSA), membrane separation, and gas absorption systems for H2 recovery from refinery off-gas stream was studied by simulation-based data. The PSA process was simulated using adsorbents of silica gel and activated carbon for removing heavy and light hydrocarbons. The mole fraction profiles of all components and the relationship between hydrogen purity and recovery as a function of feed pressure were examined. The solution-diffusion model was applied for modeling and simulation of a one-stage membrane process. The gas absorption process with a tower tray was simulated at sub-zero temperature and the correlation between hydrogen purity and recovery as a function of tower pressure and temperature was evaluated at different solvent flow rates.