Influence of temperature on catalytic cracking of waste cooking oil
GU Hao1, SHI Jian1, XIE Yi-peng2, CUI Wen-long1, ZHOU Yong-sheng1, HUANG Ze-en1, WANG Che-li1,2
1. School of Petrochemical Engineering, Changzhou University, Changzhou 213164, China; 2. School of Pharmaceutical Engineering & Life Science, Changzhou University, Changzhou 213164, China
Abstract: The product distribution for catalytic cracking of waste cooking oil at different temperatures is studied in a fixed fluidized bed reactor with CIP-2 as catalyst.Special attention is paid to the variation rules of propylene yield and gasoline yield depending on the cracking temperature.Experimental results indicate that propylene occupies the highest content in liquefied gas,about 30%,and gradually increases with the increase of cracking temperature.However,the increase of propylene content becomes less obvious once the reaction temperature exceeds 540℃.With the increase of cracking temperature,the yield of gasoline fraction increases firstly and decreases then.It is found by 13C-NMR that the substitutes of aromatic hydrocarbons in gasoline fractions are mainly short carbon chain substitutes,namely methyl and ethyl substitutes,with rates of 44.2% and 43.5%,respectively.It is found through FT-IR spectra there are no ester carbonyls in both gasoline and diesel fractions.
顾浩, 石剑, 谢毅鹏, 崔文龙, 周永生, 黄泽恩, 王车礼. 温度对地沟油催化裂解产物的影响[J]. 现代化工, 2020, 40(2): 95-98,104.
GU Hao, SHI Jian, XIE Yi-peng, CUI Wen-long, ZHOU Yong-sheng, HUANG Ze-en, WANG Che-li. Influence of temperature on catalytic cracking of waste cooking oil. Modern Chemical Industry, 2020, 40(2): 95-98,104.