Preparation of Carbon based Solid Acid Catalysts and Study on Their Catalytic Performance in Synthesizing Biodiesel
Activated carbon raw materials represented by bamboo powder were obtained by carbonization sulfonation method after phosphoric acid impregnation,and the method of synthesizing carbon based solid acid was optimized.The experimental results showed that the catalyst prepared using bamboo charcoal based solid acid as the catalyst exhibited the best performance at 350℃,carbonization time of 2 h,sulfonation temperature of 1 059℃,and sulfonation time of 4 h.The highest esterification efficiency of 98.2%can be achieved with a catalyst dosage of 10.1%by mass,an alcohol acid molar ratio of 10,an esterification temperature of 65.5℃,and an esterification time of 2 hours.Research on using bamboo powder as raw material and biomass to prepare solid acid catalysts has more prospects and competitiveness in the synthesis of biodiesel.
carbon based solid acid catalystbiodieselbamboo powderesterification
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