Deoxygenation of Waste Chicken Fats to Green Diesel over Ni/Al2O3: Effect of Water and Free Fatty Acid Content

被引：72
作者：
Kaewmeesri, Rungnapa [1 ]
Srifa, Atthapon [1 ]
Itthibenchapong, Vorranutch [1 ]
Faungnawakij, Kajornsak [1 ]
机构：
[1] NSTDA, Nanomat Energy & Catalysis Lab, Natl Nanotechnol Ctr NANOTEC, Khlong Luang 12120, Pathum Thani, Thailand
来源：
ENERGY & FUELS | 2015年 / 29卷 / 02期
关键词：
SUPPORTED NICKEL-CATALYSTS; BIO-HYDROGENATED DIESEL; VEGETABLE-OILS; PALM OIL; BIODIESEL PRODUCTION; JATROPHA OIL; HYDRODEOXYGENATION; HYDROTREATMENT; TRIGLYCERIDES; HYDROCARBONS;
D O I：
10.1021/ef5023362
中图分类号：
TE [石油、天然气工业]; TK [能源与动力工程];
学科分类号：
0807 ; 0820 ;
摘要：
The deoxygenation of waste chicken fat containing a high degree of free fatty acids (FFAs) and water has been implemented to produce a green diesel, known as biohydrogenated diesel (BHD). The effect of the water and free fatty acid content in the chicken fat on the conversion, BHD yield, and liquid/gas product distribution was investigated over a Ni/gamma-Al2O3 catalyst in a trickle-bed reactor. The major reaction pathway was decarbonylation/decarboxylation (DCO/DCO2), whereas hydrodeoxygenation was minor. Methane from methanation of the resultant CO/CO2 and propane cracking was a major gaseous product. The FFA and water content improved the BHD yield and the overall contribution of the DCO/DCO2. The presence of water accelerated the breakdown of the triglyceride molecules into FFAs. Therefore, waste chicken fat from food industries containing a high degree of FFAs and water content can be used as a low-cost feedstock for renewable diesel production without requirement of a pretreatment process.
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收藏
页码：833 / 840
页数：8
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