Tar elimination from biomass gasification syngas with bauxite residue derived catalysts and gasification char

doi:10.1016/j.apenergy.2019.114088

	Tar elimination from biomass gasification syngas with bauxite residue derived catalysts and gasification char
	Cheng, Long 2; Wu, Zhiqiang 3; Zhang, Zhiguo 4; Guo, Changqing 1; Ellis, Naoko 2; Bi, Xiaotao 2; Watkinson, A. Paul 2; Grace, John R.2
刊名	APPLIED ENERGY
	2020-01-15
卷号	258 页码:18
关键词	Biomass gasification Naphthalene decomposition Bauxite residue Biochar catalyst Iron based catalyst
ISSN号	0306-2619
DOI	10.1016/j.apenergy.2019.114088
通讯作者	Cheng, Long(lcheng96@chbe.ubc.ca)
英文摘要	Efficient elimination of tar is a challenge to the development of biomass gasification as a viable clean energy technology. Catalytic reforming is effective in reducing biomass-derived tars. However, commercial metal-based catalysts are expensive and prone to deactivation. Developing economically viable and environmentally benign catalysts from renewable materials is therefore very attractive. This study focuses on the development of an effective tar elimination process utilizing alternative catalysts derived from bauxite residue, a solid waste material from the alumina production. In this work, the catalytic performance of reduced and activated bauxite residue in facilitating naphthalene (a model biomass tar compound) decomposition was studied in a fixed-bed reactor under cracking and reforming environments. Bauxite residue catalyst in reduced form was found to be active for naphthalene reforming, mainly due to its high metallic iron content. However, under wet syngas environments, bauxite residue catalyst was easily deactivated by steam. To address the steam deactivation of bauxite residue catalyst, biochar as a reducing agent, as well as a co-catalyst and adsorptive-support, was proposed to mix with bauxite residue. In this study, biochar from biomass gasification has been successfully employed as a reducing agent to reduce iron oxides in bauxite residue to metallic iron in an inert environment. Results from catalyst activity testing showed that the bauxite residue-biochar mixed catalyst led to highly effective and sustained naphthalene conversion in a reforming environment, since the iron content in bauxite residue was maintained in its reduced form in the presence of biochar.
资助项目	Natural Sciences and Engineering Research Council of Canada (NSERC) ; MITACS ; Highbury Energy Inc.
WOS关键词	RED MUD ; IRON-OXIDE ; CARBOTHERMIC REDUCTION ; STEAM GASIFICATION ; COAL CHAR ; DECOMPOSITION ; REMOVAL ; PYROLYSIS ; HYDROGEN ; OXYGEN
WOS研究方向	Energy & Fuels ; Engineering
语种	英语
出版者	ELSEVIER SCI LTD
WOS记录号	WOS:000506575100049
资助机构	Natural Sciences and Engineering Research Council of Canada (NSERC) ; MITACS ; Highbury Energy Inc.
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26319]
专题	中国科学院广州能源研究所
通讯作者	Cheng, Long
作者单位	1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, 2 Nengyuan Rd, Guangzhou 510640, Peoples R China 2.Univ British Columbia, Dept Chem & Biol Engn, Clean Energy Res Ctr, 2360 East Mall, Vancouver, BC V6T 1Z3, Canada 3.Xi An Jiao Tong Univ, Sch Chem Engn & Technol, Shanxi Key Lab Energy Chem Proc Intensificat, 28 Xianning West Rd, Xian 710049, Shanxi, Peoples R China 4.Zhejiang Univ Sci & Technol, Sch Mech & Energy Engn, 318 Liuhe Rd, Hangzhou 310023, Zhejiang, Peoples R China
推荐引用方式 GB/T 7714	Cheng, Long,Wu, Zhiqiang,Zhang, Zhiguo,et al. Tar elimination from biomass gasification syngas with bauxite residue derived catalysts and gasification char[J]. APPLIED ENERGY,2020,258:18.
APA	Cheng, Long.,Wu, Zhiqiang.,Zhang, Zhiguo.,Guo, Changqing.,Ellis, Naoko.,...&Grace, John R..(2020).Tar elimination from biomass gasification syngas with bauxite residue derived catalysts and gasification char.APPLIED ENERGY,258,18.
MLA	Cheng, Long,et al."Tar elimination from biomass gasification syngas with bauxite residue derived catalysts and gasification char".APPLIED ENERGY 258(2020):18.