Sustainability evaluation of biomass direct gasification using chemical looping technology for power generation with and w/o CO2 capture

Usama Mohamed, Yingjie Zhao, Yi Huang, Yang Cui, Lijuan Shi, Congming Li, Mohamed Pourkashanian, Guoqiang Wei, Qun Yi and William Nimmo

Energy, 2020, vol. 205, issue C

Abstract: Sawdust direct gasification using chemical looping with hematite as an oxygen carrier was investigated in a 10 kWth interconnected fluidized bed reactor. This was used to develop a biomass chemical looping gasification combined cycle (BCLGCC) model using Aspen Plus software. A technical analysis of a scaled up, simulated and validated 650 MW power plant using BCLG experimental results and industrial data was conducted. The analysis focused on investigating critical parameters that have a significant effect on syngas quality and quantity, hence optimizing the gasification process to obtain higher energy efficiencies for subsequent power generation. An economic and sustainability assessments comparing BCLGCC with 4 different power generation technologies with and w/o CCS was performed. BCLGCC presents promising economic and environmental results, showing that the efficiencies of the CCS and Non-CCS plants are equal to 36% and 41%, respectively, with a COE (including government renewable energy subsidies) for both CCS and Non-CCS equal to 15.9 ¢/kWh and 12.8 ¢/kWh, both of which are lower than the average COE in the UK (approximately 17.7 ¢/kWh). This highlights the technical and economic potential and feasibility of BCLGCC compared to conventional power generation processes while promoting Bioenergy with Carbon Capture and Storage (BECCS) technology.

Keywords: Biomass gasification; Chemical looping; Power generation; CO2 capture; Sustainability assessment (search for similar items in EconPapers)
Date: 2020
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (9)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:205:y:2020:i:c:s0360544220310112

DOI: 10.1016/j.energy.2020.117904

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