Biomethane Production Via Anaerobic Digestion and Biomass Gasification. (May 2017)

• Record Type: Journal Article
• Authors: Li, Hailong; Mehmood, Daheem; Thorin, Eva; Yu, Zhixin
• Is Part Of: Energy procedia. Volume 105(2017)
• Page Start: 1172
• Page End: 1177
• Publication Date: 2017-05
• Subjects: biomethane -- anaerobic digestion -- biomass gasification -- upgrading -- efficiency; Power resources -- Congresses; Power resources -- Periodicals; Power resources; Conference proceedings; Periodicals; 333.7905
• DOI: 10.1016/j.egypro.2017.03.490
• Languages: English
• ISSNs: 1876-6102

Abstract

Abstract: The transport sector accounts for the second biggest greenhouse gas emission in the European Union (EU). In order to achieve the target of CO2 emission reduction there is a rapid growing interest in using biomethane as fuel for transport applications. Biomethane can be produced through anaerobic digestion or biomass gasification. Anaerobic digestion is a biochemical process. Since the raw gas contains approximately 65vol% CH4 and 35vol%, an upgrading process is needed to remove CO2. Göteborg biomass gasification project (GoBiGas) is the world's first demonstration plant for large-scale production of biomethane through the gasification of forest residues. To achieve high purity CH4, a methanation process is required after gasification. This work compares these two technologies from the perspective of energy efficiency. Simulation results show that they have similar efficiencies: 62-64% for AE and ∼65% for GoBiGas.