Preparation of biodiesel from soybean oil catalyzed byp-toluene sulfonic acid loaded on activated carbon
A process about preparation of biodiesel from soybean oil was optimized by using p-toluene sulfonic acid loaded on activated carbon.The optimal esterification conditions were obtained by single factor experiment and orthogonal experiment as follows:molar ratio of methanol to oil 25:1,dosage of catalyst 6%,reaction time 2.5 h and reaction temperature 75℃.Under these conditions,the production rate of biodiesel reached 96.4%.
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