Hydrodeoxygenation and hydroisomerization of palmitic acid over bi-functional Co/H-ZSM-22 catalysts

被引：59

作者：

Cao, Yaya ^{[1
]}

Shi, Yanchun ^{[2
]}

Bi, Yunfei ^{[5
]}

Wu, Kejing ^{[2
]}

Hu, Shaojian ^{[2
]}

Wu, Yulong ^{[2
,3
]}

Huang, Shaobin ^{[1
,4
]}

机构：

[1] South China Univ Technol, Coll Environm & Energy, Guangzhou 510006, Guangdong, Peoples R China

[2] Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China

[3] Beijing Engn Res Ctr Biofuels, Beijing 100084, Peoples R China

[4] Guangdong Prov Key Lab Atmospher Environm & Pollu, Guangzhou 510006, Guangdong, Peoples R China

[5] Sinopec, Lab Hydrogenat, Res Inst Petr Proc, Beijing 100083, Peoples R China

来源：

FUEL PROCESSING TECHNOLOGY | 2018年 / 172卷

基金：

中国国家自然科学基金;

关键词：

Hydrodeoxygenation; Hydroisomerization; Palmitic acid; Co/H-ZSM-22; ISO-ALKANES; OIL; HYDROCARBONS; COMBUSTION; DIESEL; FUELS;

D O I：

10.1016/j.fuproc.2017.09.020

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

Hydrodeoxygenation and hydroisomerization of palmitic acid were achieved over bi-functional Co/H-ZSM-22 catalysts (about 4 wt% Co loading), and the maximum of isoproducts reached up to 73.4% selectivity at 260 degrees C for 4 h in presence of 2 MPa H-2. Compared to parent H-ZSM-22, the impregnation of Co species for bi-functional catalysts could catalyze completely palmitic acid conversion into 100% selectivity of alkanes in spite of low pressure (1 MPa H-2). Furthermore, bi-functional Co/H-ZSM-22 catalysts tailored the deoxygenation route via hydrodeoxygenation leading to more C-16 formation. With decreasing of reaction pressure, mole ratio of C-16/C-15 decreased during complete conversion of palmitic acid, indicating that low reaction pressure favored hydrodecarbonylation to produce more C-15. Bi-functional Co/H-ZSM-22 catalysts also exhibited great stability after five runs without any deactivation.

引用

页码：29 / 35

页数：7

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