Optimization of process variables for esterification of bio-oil model compounds by a heteropolyacid catalyst
作者： Prapaporn Prasertpong , Chawannat Jaroenkhasemmeesuk , John R. Regalbuto , Jeremiah Lipp , Nakorn Tippayawong
DOI: 10.1016/J.EGYR.2019.11.026
关键词:
摘要: Abstract In this work, the catalytic upgrading of a bio-oil model compound via esterification with ethanol was studied using 12-tungstosilicic acid as catalyst. The response surface method used to investigate and optimize process variables, which include molar ratio, catalyst loading, reaction temperature, time for maximum conversion organic under atmospheric conditions. effect high He pressure on also studied. almost 90%, can be achieved at temperature 77 °C, ratio 5:1, loading 4.0% w/w, 8.3 h. Pressurizing inert did not have any optimum condition had slight negative After upgrading, esterified products were found improve heating value from 17.6 23.2 MJ/kg appeared enhance fuel properties.
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