Open AccessSynthesis of Biodiesel Catalyzed by Phosphotungstic Acid Supported on Silica
Author(s) -
Hongxiong Yang,
Junshu Chen
Publication year - 2020
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/526/1/012097
Subject(s) - phosphotungstic acid , tetraethyl orthosilicate , biodiesel , catalysis , methanol , chemistry , alcohol , biofuel , orthosilicate , silica gel , nuclear chemistry , organic chemistry , materials science , waste management , engineering
Using tetraethyl orthosilicate as silicon source, silica supported phosphotungstic acid catalyst was prepared by sol-gel method, and then biodiesel was synthesized from Vegetable oil and methanol with self-made solid acid as catalyst. Through the temperature, time, dosage, use times and other factors. The optimal conditions for conversion were found to be 40% phosphotungstic acid loading. 6: 1 ratio of alcohol to oil, the catalyst dosage is 10% of the rapeseed oil mass, and the reaction temperature was set at 68°C and the reaction time was 2.5h. Under these conditions, the conversion rate of biodiesel can reach 96.0%.