Open AccessRecent Progress on Heteropolyacids for Green Fuels Synthesis
Author(s) -
Qiuyun Zhang,
Xiaofang Liu,
Tao Deng,
Yutao Zhang,
Pengtao Ma
Publication year - 2020
Publication title -
current green chemistry
Language(s) - English
Resource type - Journals
eISSN - 2213-347X
pISSN - 2213-3461
DOI - 10.2174/2213346106666191014104156
Subject(s) - biodiesel , transesterification , catalysis , biodiesel production , renewable energy , alcohol , pulp and paper industry , fossil fuel , chemistry , biofuel , organic chemistry , environmental science , materials science , biochemical engineering , waste management , engineering , electrical engineering
Decreasing fossil fuel reserves and growing concerns are driving the utilization of renewablefeedstocks as green fuel sources. Heteropolyacids (HPAs) are one of the most promising catalyticmaterials in green biodiesel production. Their unique chemical and physical properties are outstandingand could allow the preparation of composite materials. In this review, esterification/transesterification for biodiesel synthesis using various types of HPAs base catalysts including pristineHPAs, substituted HPAs, supported HPAs and encapsulated HPAs has been described. In addition,esterification/transesterification reaction conditions such as reaction time and temperature, alcoholcontent and catalyst dosage affect the catalytic activity of the HPAs base catalysts, which are alsodiscussed in detail. Finally, the present drawbacks and future challenges on HPAs based catalytic systemsfor the production of biodiesel are also addressed in the concluding remarks.