Premium
Application of Microwave Irradiation for Preparation of a KOH/Calcium Aluminate Nanocatalyst and Biodiesel
Author(s) -
Nayebzadeh Hamed,
Saghatoleslami Naser,
Tabasizadeh Mohammad
Publication year - 2017
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.201600466
Subject(s) - potassium hydroxide , calcination , biodiesel , transesterification , potassium , microwave , aluminate , materials science , calcium hydroxide , calcium , chemical engineering , nuclear chemistry , chemistry , catalysis , organic chemistry , metallurgy , cement , physics , quantum mechanics , engineering
Microwave combustion was applied for the fabrication of KOH/calcium aluminate for microwave‐enhanced biodiesel production. The effect of calcium nitrate and potassium hydroxide dosages on the properties and activities of samples was assessed. When the Ca/Al ratio was increased, the activity was enhanced probably due to the transformation of the sample to an active mayenite structure. The activity of the sample was reduced by a higher KOH loading as a result of covering the surface and porosity of the support by potassium components. The optimum sample was utilized in the transesterification reaction by two heating systems where the microwave irradiation reduced the reaction time drastically as compared to the conventional heating system. The sample converted canola oil to methyl ester nearly completely and showed high stability via calcination after each usage.