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国际清洁环境能源期刊
SJR: 0.195 SNIP: 0.435 CiteScore™: 0.74

ISSN 打印: 2150-3621
ISSN 在线: 2150-363X

国际清洁环境能源期刊

Formerly known as Clean Air: International Journal on Energy for a Clean Environment

DOI: 10.1615/InterJEnerCleanEnv.2018025185
pages 257-302

CaO-BASED CHEMICAL LOOPING GASIFICATION OF BIOMASS FOR THE PRODUCTION OF HYDROGEN-ENRICHED GAS AND CO2 NEGATIVE EMISSIONS: A REVIEW

Jianjun Cai
Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China
Shuzhong Wang
Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China; Guangdong Xi'an Jiaotong University Academy, Foshan, Guangdong, 528000, PR China
Ronghua Zeng
Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China
Ming Luo
School of Energy and Power Engineering, Jiangsu University, Zhenjiang, Jiangshu, 212013, China
Xingying Tang
School of Marine Sciences, Guangxi University, Nanning 530004, China

ABSTRACT

Hydrogen as an energy carrier plays an important role in the energy consumption system. Compared to other technologies, CaO-based chemical looping gasification of biomass (CaO-based CLGB) is a sustainable way for producing hydrogen-enriched gas and CO2 negative emissions. As the residence time of fixed carbon in a gasifier is short, the CO2 capture efficiency of the CaO-based CLGB system is low. To conquer this problem, the CaO-based CLGB configuring with carbon stripper was discussed in this paper. The decay of the CO2 capture capacity of natural CaO-based sorbents is a main factor to restrain the development of CaO-based CLGB. Some promising methods have been applied to solve this problem. According to the purpose of technology, three representative technologies were discussed in this paper. Compared to other technologies, replacing natural or synthetic CaO-based sorbents is an economic and environmentally friendly solution. Calcium-rich industrial waste (CRIW) combined with the characteristics of cheapness, wide-source and environmental protection is an ideal substitute of CaO-based sorbents for replacing natural or synthetic CaO-based sorbents. The prospect of CRIW as a CaO-based sorbent was discussed in this paper.


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