Pyrolysis of poplar, cellulose and lignin: Effects of acidity and alkalinity of the metal oxide catalysts
Zhang, CT (Zhang, Chenting)[ 1 ]; Hu, X (Hu, Xun)[ 1 ]; Guo, HY (Guo, Hongyu)[ 1 ]; Wei, T (Wei, Tao)[ 1 ]; Dong, DH (Dong, Dehua)[ 1 ]; Hu, GZ (Hu, Guangzhi)[ 2 ]; Hu, S (Hu, Song)[ 3 ]; Xiang, J (Xiang, Jun)[ 3 ]; Liu, Q (Liu, Qing)[ 4 ]; Wang, Y (Wang, Yi)[ 3 ]
2018
发表期刊JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
ISSN0165-2370
卷号134期号:9页码:590-605
摘要

This study investigated the effects of the acidity/alkalinity of seven oxides (Al2O3, SiO2, ZnO, K2O, MgO, CaO, La2O3) on the pyrolysis of poplar, cellulose and lignin. The results showed that the basic supports such as CaO and MgO promoted the formation of gaseous products. CO, CO2, and CH4 were the main gaseous products in the pyrolysis of poplar, cellulose and lignin, and CO was formed first, followed by CO2 and CH4. Some H-2 was also formed from the dehydrogenation reactions over CaO with cellulose as the feedstock. The acidic oxides promoted the tar formation, while the basic oxides suppressed tar formation. The oxides like CaO could remarkably suppress the production of phenolic compounds. The coke formation over the basic oxides were also much more significant than that over the acidic oxides, and the tar from cellulose contributed more towards coking. The heating of the coke in inert gas released CO2, CO, H-2, CH4 via probably decarboxylation/decarbonylatlon, dehydrogenation and etc. The coke from the pyrolysis of lignin was much more stable. CaO and La2O3 reacted with the CO2 produced in pyrolysis and form the carbonates, while MgO could not. The TPO-MS characterization showed that the coke species were multiple types over CaO, and a single type over MgO. The cellulose-derivatives and the lignin-derivatives have distinct effects on the structural configuration of the coke.

关键词Catalytic Pyrolysis Cellulose And Lignin Oxide Catalysts Acidity/alkalinity Properties Of The Coke
DOI10.1016/j.jaap.2018.08.009
收录类别SCI
WOS记录号WOS:000445306600064
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.xjipc.cas.cn/handle/365002/5600
专题省部共建新疆特有药用资源利用重点实验室
作者单位1.Univ Jinan, Sch Mat Sci & Engn, Jinan 250022, Shandong, Peoples R China
2.Chinese Acad Sci, Xinjiang Tech Inst Phys & Chem, State Key Lab Basis Xinjiang Indigenous Med Plant, Key Lab Chem Plant Resources Arid Reg, Urumqi 830011, Peoples R China
3.Huazhong Univ Sci & Technol, Sch Energy & Power Engn, Wuhan 430074, Hubei, Peoples R China
4.Shandong Univ Sci & Technol, Coll Chem & Environm Engn, Key Lab Low Carbon Energy & Chem Engn, Qingdao 266590, Shandong, Peoples R China
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Zhang, CT ,Hu, X ,Guo, HY ,et al. Pyrolysis of poplar, cellulose and lignin: Effects of acidity and alkalinity of the metal oxide catalysts[J]. JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,2018,134(9):590-605.
APA Zhang, CT .,Hu, X .,Guo, HY .,Wei, T .,Dong, DH .,...&Wang, Y .(2018).Pyrolysis of poplar, cellulose and lignin: Effects of acidity and alkalinity of the metal oxide catalysts.JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS,134(9),590-605.
MLA Zhang, CT ,et al."Pyrolysis of poplar, cellulose and lignin: Effects of acidity and alkalinity of the metal oxide catalysts".JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS 134.9(2018):590-605.
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