Effect of reaction parameters on the decarboxylation of oleic acid over Pt/ZIF-67 membrane/zeolite 5A bead catalysts

被引：34
作者：
Yang, Liqiu [1 ]
Carreon, Moises A. [1 ]
机构：
[1] Colorado Sch Mines, Chem & Biol Engn Dept, Golden, CO 80401 USA
来源：
JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY | 2017年 / 92卷 / 01期
关键词：
decarboxylation; oleic acid; liquid hydrocarbons; reaction parameters; CO2; FREE FATTY-ACIDS; DIESEL FUEL; VEGETABLE-OILS; DEOXYGENATION; HYDROCARBONS; CARBON; CONVERSION; HYDROGEN; KINETICS;
D O I：
10.1002/jctb.5112
中图分类号：
Q81 [生物工程学（生物技术）]; Q93 [微生物学];
学科分类号：
071005 ; 0836 ; 090102 ; 100705 ;
摘要：
BACKGROUND: Carboxylic acids obtained from biomass raw materials are attractive starting chemicals in the conversion to linear, paraffinic hydrocarbons. The resultant hydrocarbon products can be used as platform chemicals for the production of fuels, lubricants and other valuable chemicals. RESULTS: The effects of reaction parameters on the decarboxylation of oleic acid to paraffins, and hydrocarbons over Pt supported on zeolite 5A beads coated with ZIF-67 membrane (Pt/ZIF-67 membrane/zeolite 5A) were investigated. Almost complete conversion of oleic acid was observed for all reaction conditions studied here. The catalysts displayed high selectivity to heptadecane even with as low as 0.5 wt% Pt loading. Moderate reaction temperature and pressure were favorable to obtain high yield of heptadecane. The catalysts displayed a slight decrease in catalytic activity after recycling. Interestingly, of all explored reaction conditions, the catalysts exhibited the highest selectivity to heptadecane (similar to 91%) in the presence of CO2. CONCLUSION: The results from this work demonstrate that the studied reaction parameters greatly affected the overall catalytic performance (mainly product distribution) for the decarboxylation of oleic acid into heptadecane over Pt/ZIF-67 membrane/zeolite 5A catalysts. (C) 2016 Society of Chemical Industry
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页码：52 / 58
页数：7
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