Techno-economic evaluation of biogas upgrading process using CO2 facilitated transport membrane |
| |
| Authors: | Liyuan Deng May-Britt Hägg |
| |
| Institution: | 1. Politecnico di Milano, Dipartimento di Energia, Via Lambruschini 4A, 20156 Milano, Italy;2. Universidad Politécnica de Madrid, Calle Ramiro de Maeztu, 7, 28040 Madrid, Spain;1. School of Chemistry and Chemical Engineering/Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, Shihezi University, Shihezi 832003, China;2. Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China;3. College of Bioengineering, Henan University of Technology, Zhengzhou 450001, China;1. Department of Chemical Engineering, Norwegian University of Science and Technology, N-7491 Trondheim, Norway;2. SINTEF Materials and Chemistry, Sem Sælands vei 2A, 7465 Trondheim, Norway;1. Research Institute of Bioengineering, Membrane Technology and Energetics, University of Pannonia, Egyetem u. 10, 8200 Veszprém, Hungary;2. School of Civil and Environmental Engineering, Yonsei University, Seoul 38722, Republic of Korea;3. Department of Environmental Energy Engineering, Kyonggi University, Suwon 16227, Republic of Korea |
| |
| Abstract: | The biogas upgrading by membrane separation process using a highly efficient CO2-selective polyvinylamine/polyvinylalcohol (PVAm/PVA) blend membrane was investigated by experimental study and simulation with respect to process design, operation optimization and economic evaluation. This blend membrane takes advantages of the unique CO2 facilitated transport from PVAm and the robust mechanical properties from PVA, exhibits both high CO2/CH4 separation efficiency and very good stability. CO2 transports through the water swollen membrane matrix in the form of bicarbonate. CO2/CH4 selectivity up to 40 and CO2 permeance up to 0.55 m3(STP)/m2 h bar at 2 bar were documented in lab with synthesized biogas (35% CO2 and 65% CH4). Membrane performances at varying feed pressures were recorded and used as the simulation basis in this work. The process simulation of an on-farm scale biogas upgrading plant (1000 Nm3/h) was conducted. Processes with four different membrane module configurations with or without recycle were evaluated technically and economically, and the 2-stage in cascade with recycle configuration was proven optimal among the four processes. The sensitivity of the process to various operation parameters was analyzed and the operation conditions were optimized. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
