Direct synthesis of methane-rich gas from reed biomass pyrolysis volatiles over its biochar-supported Ni catalysts

doi:10.1016/j.biombioe.2021.106250

GIEC OpenIR

	Direct synthesis of methane-rich gas from reed biomass pyrolysis volatiles over its biochar-supported Ni catalysts
	Yue, Xia 1,2; Chen, Dezhen 1; Luo, Jia 1; Huang, Zhen 3; Hong, Liu 1; Hu, Yuyan 1
	2021-11-01
发表期刊	BIOMASS & BIOENERGY
ISSN	0961-9534
卷号	154 页码:11
通讯作者	Chen, Dezhen(chendezhen@tongji.edu.cn)
摘要	Thermochemical conversion of biomass into methane is a promising way for bioenergy recovery and alleviate natural gas shortage; however, the available technologies are queried by the complex procedures. This paper proposed a new approach for the direct synthesis of methane-rich gases from reed pyrolysis volatile at atmospheric pressure, according to which the reed pyrolysis volatiles are catalyzed over reed biochar-supported Ni catalysts in two stages to be converted. Seawater and freshwater reeds were compared for preparing effective catalysts, and the influences of inorganic salts in reed biomass on the catalytic performance were explored. The reed biochar-supported Ni catalysts were also compared with gamma-Al2O3-supported Ni catalyst (Ni/gamma-Al2O3) to evaluate their activities. It has been found that freshwater reed biochar-supported Ni catalysts (Ni/FWBs) performed better than seawater reed biochar-supported catalysts (Ni/SWBs) and Ni/gamma-Al2O3 owing to their large specific surface areas, uniform Ni particle dispersions, and appropriate Ni/biochar interactions. The Ni/FWB with biochar support produced at 600 degrees C (Ni/600FWB) was the best, and its corresponded tar-free gas product was characterized by a methane yield of 188.38 L/kg( reed) after two-stage catalytic conversion. The SWBs with higher alkali metal contents corresponded to larger Ni loading amounts than that of FWBs under the same conditions; however, they suffered from Ni particle aggregation and fusion, which deteriorated their catalytic activities. The findings indicated that the inexpensive Ni/FWBs were effective for the direct synthesis of methane from biomass pyrolysis volatiles, and the approach developed in this study provides an alternative to produce methane from biomass economically.
关键词	Reed Biochar-supported Ni catalyst Pyrolysis volatiles Methane-rich gas Inorganic salt
DOI	10.1016/j.biombioe.2021.106250
关键词[WOS]	NI/AL2O3 CATALYSTS ; GASIFICATION ; ALKALI ; TEMPERATURE ; NICKEL ; DECOMPOSITION ; TOLUENE ; ROLES
收录类别	SCI
语种	英语
资助项目	Chinese national key research program[2017YFC0506004]
WOS研究方向	Agriculture ; Biotechnology & Applied Microbiology ; Energy & Fuels
项目资助者	Chinese national key research program
WOS类目	Agricultural Engineering ; Biotechnology & Applied Microbiology ; Energy & Fuels
WOS记录号	WOS:000705972000004
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计	被引频次：16[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.giec.ac.cn/handle/344007/35066
专题	中国科学院广州能源研究所
通讯作者	Chen, Dezhen
作者单位	1.Tongji Univ, Thermal & Environm Engn Inst, Sch Mech Engn, 1239 Siping Rd, Shanghai 200092, Peoples R China 2.Inner Mongolia Univ Technol, Sch Mech Engn, 49 Aimin Rd, Hohhot 010051, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, CAS, Guangzhou, Peoples R China
推荐引用方式 GB/T 7714	Yue, Xia,Chen, Dezhen,Luo, Jia,et al. Direct synthesis of methane-rich gas from reed biomass pyrolysis volatiles over its biochar-supported Ni catalysts[J]. BIOMASS & BIOENERGY,2021,154:11.
APA	Yue, Xia,Chen, Dezhen,Luo, Jia,Huang, Zhen,Hong, Liu,&Hu, Yuyan.(2021).Direct synthesis of methane-rich gas from reed biomass pyrolysis volatiles over its biochar-supported Ni catalysts.BIOMASS & BIOENERGY,154,11.
MLA	Yue, Xia,et al."Direct synthesis of methane-rich gas from reed biomass pyrolysis volatiles over its biochar-supported Ni catalysts".BIOMASS & BIOENERGY 154(2021):11.