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- W2369939573 abstract "Biodiese were synthesized via transesterification of soybean oil with ethanol in the presence of solid acids as the heterogeneous catalyst.Silica-supported methanesulfonic acid(CH_3SO_3 H-SiO_2) was pre- pared by sol-gel method as the catalyst.Effects of treatment temperature for the catalyst,n (ethanol): n (soybean oil),dosage of the catalyst,dosage of heptane and reaction time were investigated.The results showed that the silica-supported methanesulfonic acid (CH_3SO_3H-SiO_2) catalysts exhibited high activity for the transesterification.Biodiesel yield of 98.33% was obtained under optimum condition as follows: catalyst being treated at 130℃,n(ethanol):n(soybean oil) =6:1,mass fraction of the catalyst in soy- bean oil = 5.0%,mass fraction of heptane in soybean oil = 30.0%,reflux time 6 h.The solid acid cata- lysts have better adaptability to the feeds than solid base catalysts." @default.
- W2369939573 created "2016-06-24" @default.
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- W2369939573 date "2009-01-01" @default.
- W2369939573 modified "2023-09-27" @default.
- W2369939573 title "Synthesis of biodiesel via transesterification over silica-supported methanesulfonic acid" @default.
- W2369939573 hasPublicationYear "2009" @default.
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