Evaluation of biogas upgrading technologies using a response surface methodology for process simulation

JOURNAL OF CLEANER PRODUCTION

卷:141

Article

Morero, Betzabet¹  Groppelli, Eduardo S.²  Campanella, Enrique A.^1,3 

[1] Univ Nacl Litoral, CONICET, Inst Desarrollo Tecnol Ind Quim INTEC, Guemes 3450, RA-3000 Santa Fe, Argentina

[2] Univ Nacl Litoral, FIQ, Grp Energia Convenc, Santiago Estero 2829, RA-3000 Santa Fe, Argentina

[3] Univ Nacl Litoral, Fac Ingn & Ciencias Hidr, Ruta Nacl 168 Km 472-4, RA-3000 Santa Fe, Argentina

关键词: Biomethane;    CO2 capture;    Process simulation;    Response surface methodology;   

DOI  :  10.1016/j.jclepro.2016.09.167

来源: Elsevier

【 摘 要 】

Biogas is commonly upgraded to biomethane to produce a better biofuel. The aim of this work is to compare different types of solvents in biogas upgrading while using an absorber-stripper process. A conventional single-loop absorber-stripper process configuration was simulated with ProMax (R) for three types of solvents: diglycolamine (DGA), dimethyl ethers of polyethylene glycol (DEPG) and water. Absorption temperature, absorption pressure, CO2 concentration, solvent circulation rate and steam rate (only for DGA) were considered as varying parameters. The effects of these parameters on energy consumption, CO2 capture and CH4 recovery were studied by applying response surface methodology (RSM) to the simulations of the processes. The comparison of the processes at the optimum operating conditions for RSM with the three solvents has shown that the process with water is the simplest and most robust of the three, obtaining high levels of CO2 capture and CH4 recovery with the lowest energy consumption. (C) 2016 Elsevier Ltd. All rights reserved.

【 授权许可】

Free