Producing biodiesel from waste animal oil by modified ZnO. Issue 8 (21st June 2017)

• Record Type: Journal Article
• Authors: Pang, Dandan; Tan, Hao; Zhu, Rongshu; Ouyang, Feng
• Is Part Of: International journal of green energy. Volume 14:Issue 8(2017)
• Page Start: 703
• Page End: 711
• Publication Date: 2017-06-21
• Subjects: Alkalinity -- CO2-TPD -- transesterification -- waste animal oil -- ZnO/Zn2Al; Power resources -- Research -- Periodicals; Energy industries -- Periodicals; Energy development -- Periodicals; 333.79
• DOI: 10.1080/15435075.2017.1324793
• Languages: English
• ISSNs: 1543-5075

Abstract

ABSTRACT: Biodiesel produced by transesterification of waste animal oil is a promising green fuel in the future. ZnO-Al2 O3 and ZnO/Zn2 Al composition oxides were prepared by co-precipitation method and impregnation method, respectively. The above catalysts were characterized by X-ray diffraction (XRD), Brunauer--Emmett--Teller (BET) and CO2 adsorption and temperature-programmed desorption (CO2 -TPD) and show that the high activity for the catalyst is attributed to its high alkalinity. The reaction parameters were optimized and the results show that the transesterification ratio of waste animal oil can reach 98.7% with 10% ZnO/Zn2 Al catalyst after 2 h. Moreover, 10%ZnO/Zn2 Al compound oxides can be active for the successive cycles. The glycerol as a predominant by-product after transesterification is of high purity with high use value.