Lowering the pyrolysis temperature of lignocellulosic biomass by H2SO4 loading for enhancing the production of platform chemicals

doi:10.1016/j.cej.2019.123809

	Lowering the pyrolysis temperature of lignocellulosic biomass by H2SO4 loading for enhancing the production of platform chemicals
	Cao, Fengzhu 2,3,4,5; Xia, Shengpeng 1,2,3,4; Yang, Xingwei 1,2,3,4; Wang, Chenyang 2,3,4,5; Wang, Qi 1,2,3,4; Cui, Chaoxian 1,2,3,4; Zheng, Anqing 2,3,4,6
刊名	CHEMICAL ENGINEERING JOURNAL
	2020-04-01
卷号	385 页码:8
关键词	Biomass Controlled pyrolysis C-O bond cleavage Anhydrosugar Low temperature
ISSN号	1385-8947
DOI	10.1016/j.cej.2019.123809
通讯作者	Zheng, Anqing(zhengaq@ms.giec.ac.cn)
英文摘要	Fast pyrolysis is a promising method for the production of liquid fuels and chemicals from lignocellulosic biomass. However, the catalytic effects of inherent alkali and alkaline earth metals and the high temperature used for the fast pyrolysis of biomass can drastically promote uncontrolled C-C/C-O bond cleavages and poly-condensation reactions, resulting in the formation of considerable amounts of undesired light oxygenated organic compounds, permanent gases and char. Here, we demonstrate that H2SO4 loading can lower the pyrolysis temperature of biomass from 500 to 300 degrees C with higher yield of platform chemicals. The pyrolysis of H2SO4 loaded biomass at 300 degrees C is capable of selectively breaking C-O bonds in polysaccharides and effectively suppressing the formation of light oxygenated organic compounds, permanent gases and char. Approximately 50-60 wt% biomass feedstocks are primarily converted into anhydrosugars (mainly levoglucosan and xylosan) and their dehydrated products (mainly levoglucosenone and furfural). It is inferred that H2SO4 combined with the inherent alkali and alkaline earth metals (AAEM) in raw biomass can simultaneously inhibits the catalytic functions of AAEM and H2SO4 for achieving oriented conversion of hemicellulose and cellulose at low temperature. This study provides a very simple, atom-economical and energy-efficient pyrolytic strategy for enhancing the production of platform chemicals from biomass.
资助项目	National Key R&D Program of China[2017YFE0124200] ; National Natural Science Foundation of China[51776209] ; National Natural Science Foundation of China[51876208] ; National Natural Science Foundation of China[51606204] ; National Natural Science Foundation of China[51661145011] ; Science and Technology Planning Project of Guangdong Province[2015A020215024] ; Youth Innovation Promotion Association, CAS[2018383] ; Pearl River S&T Nova Program of Guangzhou[201806010061]
WOS关键词	CATALYTIC FAST PYROLYSIS ; SELECTIVE PRODUCTION ; MECHANISTIC MODEL ; PY-GC/MS ; CELLULOSE ; LIGNIN ; FEEDSTOCKS ; CONVERSION ; BEHAVIOR ; PRETREATMENT
WOS研究方向	Engineering
语种	英语
出版者	ELSEVIER SCIENCE SA
WOS记录号	WOS:000507465200087
资助机构	National Key R&D Program of China ; National Natural Science Foundation of China ; Science and Technology Planning Project of Guangdong Province ; Youth Innovation Promotion Association, CAS ; Pearl River S&T Nova Program of Guangzhou
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26325]
专题	中国科学院广州能源研究所
通讯作者	Zheng, Anqing
作者单位	1.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Peoples R China 3.CAS Key Lab Renewable Energy, Guangzhou 510640, Peoples R China 4.Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China 5.Univ Sci & Technol China, Nano Sci & Technol Inst, Suzhou 215123, Peoples R China 6.China Univ Petr East China, State Key Lab Heavy Oil Proc, Qingdao 266580, Shandong, Peoples R China
推荐引用方式 GB/T 7714	Cao, Fengzhu,Xia, Shengpeng,Yang, Xingwei,et al. Lowering the pyrolysis temperature of lignocellulosic biomass by H2SO4 loading for enhancing the production of platform chemicals[J]. CHEMICAL ENGINEERING JOURNAL,2020,385:8.
APA	Cao, Fengzhu.,Xia, Shengpeng.,Yang, Xingwei.,Wang, Chenyang.,Wang, Qi.,...&Zheng, Anqing.(2020).Lowering the pyrolysis temperature of lignocellulosic biomass by H2SO4 loading for enhancing the production of platform chemicals.CHEMICAL ENGINEERING JOURNAL,385,8.
MLA	Cao, Fengzhu,et al."Lowering the pyrolysis temperature of lignocellulosic biomass by H2SO4 loading for enhancing the production of platform chemicals".CHEMICAL ENGINEERING JOURNAL 385(2020):8.