牛胜利
Professor Supervisor of Doctorate Candidates Supervisor of Master's Candidates
Name (Simplified Chinese):牛胜利
Name (Pinyin):Niu Shengli
Date of Employment:2011-08-16
School/Department:能源与动力工程学院
Education Level:Postgraduate (Doctoral)
Gender:Male
Contact Information:邮箱:nsl@sdu.edu.cn
Degree:Doctoral Degree in Engineering
Status:Employed
Alma Mater:山东大学
Whether on the job:1
Discipline:Thermal Power Engineering
Academic Honor:
Honors and Titles:
Hits:
Journal:Chemical Engineering and Processing - Process Intensification
Key Words:Biodiesel; Transesterification; Sr-Zn oxides catalyst; Molecular simulation
Abstract:The basic active sites are rendered inactive by the free fatty acids (FFAs) in the feedstock. The aim of this study was to maximize the use of cheap and readily available waste cooking oil (WCO) and Sr-Zn oxide catalyst (prepared by sol-gel method) for biodiesel production. The best performing catalyst with a molar ratio of ZnO to SrO of 0.6 gave a biodiesel yield of 91.99 % even with the addition of 11 wt.% oleic acid. The morphology, crystal size and acid-base value of the Sr-Zn oxide catalysts were determined using various characterization methods. The results showed that the total basicity and acidity of the Sr-Zn oxide catalysts was 0.402 mmol/g and 0.367 mmol/g, respectively. After Zn doping, the specific surface area increased from 0.28 m2 g 1 to 0.41 m2
g 1. The adsorption energy of acetic acid on the surface of Sr-Zn oxide was calculated to be the maximum of -268.9 kJ/mol based on the density functional theory. Zinc doping stimulated the C = O bond of acetic acid with the charges of 0.028 e. As a result, Sr-Zn oxide catalysts demonstrated acceptable activity and reusability, indicating bright futures for the heterogeneous catalyst-mediated manufacturing of biodiesel.
All the Authors:厉志鹏
First Author:刘思彤
Indexed by:Journal paper
Correspondence Author:牛胜利*(*通讯作者,下同)
Discipline:Engineering
First-Level Discipline:Power Engineering and Engineering Thermophysics
Document Type:J
Volume:200
Page Number:109777
Translation or Not:no
Date of Publication:2024-04-01
Included Journals:SCI