A new method for long-chain alkanes under a condition without extra hydrogen source: Catalytic upgrading of cellulose pyrolysis vapors over Au/TS-1 catalyst

被引:11
|
作者
Zhu, Yongfeng [1 ]
Chen, Jinlei [1 ]
Li, Wenbin [2 ]
Wang, Dechao [1 ]
Li, Shuirong [1 ]
Zheng, Zhifeng [1 ]
机构
[1] Xiamen Univ, Xiamen Key Lab High Valued Convers Technol Agr Bi, Fujian Prov Engn & Res Ctr Clean & High Valued Te, Coll Energy,Fujian Prov Ind Technol Dev Base New, Xiamen 361102, Peoples R China
[2] Southwest Forestry Univ, Yunnan Prov Int Joint Res Ctr Bioenergy, Key Lab Highly Efficient Utilizat Forest Biomass, Natl Forestry & Grassland Adm, Kunming 650224, Yunnan, Peoples R China
基金
中国国家自然科学基金;
关键词
Cellulose; Catalytic pyrolysis; TS-1; Au; Long-chain alkanes; BIO-OIL; PHOTOCATALYTIC ACTIVITY; TITANIUM SILICALITE-1; BIOMASS; ACID; DEHYDRATION; TS-1; HYDRODEOXYGENATION; DEOXYGENATION; POLYETHYLENE;
D O I
10.1016/j.jaap.2020.104906
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
Production of alkanes from bio-oil is usually conducted under a rigorous condition with high hydrogen consumption. In this study, a novel method for long-chain alkanes production via catalytic upgrading of cellulose pyrolysis vapors over Au/TS-1 catalyst under a mild condition without hydrogen and normal pressure was reported. Catalytic upgrading of cellulose was performed on a dual pyrolyzer (Py) coupled with gas chromatograph/mass spectrometry (GC/MS). The experimental results showed that Au/TS-1 could effectively decrease the oxygen content of bio-oil from 100 % to 21 %, and increase the selectivity of alkanes from 0 % to 76.7 %. Glucose, methanol and n-pentane were used as model compounds to understand the possible upgrading mechanism for the formation of hydrocarbons, and it is shown that the long-chain alkanes were generated from methyl and hydroxyl dehydration.
引用
收藏
页数:9
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