Conference article

Simulation as a Tool for Evaluating Biogas Purification Processes

Markku Ohenoja
Control Engineering, Department of Technology, University of Oulu, Finland

Aki Sorsa
Control Engineering, Department of Technology, University of Oulu, Finland

Download articlehttp://dx.doi.org/10.3384/ecp1511955

Published in: Proceedings of the 56th Conference on Simulation and Modelling (SIMS 56), October, 7-9, 2015, Linköping University, Sweden

Linköping Electronic Conference Proceedings 119:5, s. 55-61

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Published: 2015-11-25

ISBN: 978-91-7685-900-1

ISSN: 1650-3686 (print), 1650-3740 (online)

Abstract

Biogas is one interesting fuel for the decentralized energy production as it can be originated from many different sources. The purification of biogas to the point where it can also be used as a substitute for natural gas requires several purification steps. This paper focuses on the separation of carbon dioxide. A common solver using the discretized Gauss-Seidel method was applied for three different biogas purification process models describing MEA absorption, pressurized water scrubbing and multistage membrane separation. Simulations based on experimental designs were conducted in order to evaluate the applicability of those purification processes for different sources of biogas. The models used were rather simplified descriptions of the processes aimed to describe the directions of the changes in a general manner and indicate the controllability of the processes.

Keywords

CO2 separation; Steady-state mass balance; Discretized Gauss-Seidel method; Full factorial design

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