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《Modern Chemical Industry》 2007-11
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Study on a new catalyst of solid acid for preparation of bio-diesel from waste oil

WANG Yang-dong1,LIU Guo-wen2(1.Torch High Technology Industry Development Center,Beijing 100045,China;2.Beijing Feiyan Petrochemical Environmental Protection Technological Development Co.Ltd.,Beijing 102500,China)  
A new catalyst has been developed for producing bio-diesel from high acid value waste oil.Under such optimum conditions of n(Fe)∶n(Zr)∶n(La)= 1∶0.42∶0.075,the S2O2-8/Fe2O3-ZrO2-La2O3 solid acid catalyst has a high activity.Under the optimum reaction conditions obtained as follows:catalyst dosage 2% of oil mass used,12∶1 of molar ratio of methanol to waste oils,220℃ of reaction temperature,10 hours of reaction time,the yield of the bio-diesel can reach 90.3%.The bio-diesel yield can be more than 83% after the catalyst is used for 50 h.
【CateGory Index】: TE667
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