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Affiliation of Author(s):能源与动力工程学院

Journal:Journal of Thermal Analysis and Calorimetry

Key Words:Thermogravimetric; Carbide slag; Model-free method; Transesterification; Catalyst

Abstract:Potential of carbide slag as transesterification catalyst is validated. Combined with X-ray fluorescence for ingredient determination, X-ray diffraction for textural phase analysis, scanning electron microscope for surface morphology observation and Hammett indicator for basic strength mensuration, thermal event of carbide slag is investigated through thermogravimetric analysis to estimate the potential of this calcium-based industrial waste as transesterification catalyst. Further, kinetic parameters are calculated through model-free method, where the experiments are conducted at temperature heating rates of 5, 10, 15, and 20 K min(-1). As for activation energy and reaction order, Vyazovkin method and Avrami theory are respectively mentioned. Meanwhile, catalytic performance of carbide slag is labeled by transesterification efficiency and calcium hydroxide is conditionally mentioned for comparison. In conclusion, potential of carbide slag as transesterification catalyst is adequately validated.

First Author:Shengli Niu*

Indexed by:Journal paper

Document Code:lw-153991

Discipline:Engineering

First-Level Discipline:Power Engineering and Engineering Thermophysics

Document Type:J

Volume:115

Issue:1

Page Number:73-79

Translation or Not:no

Date of Publication:2014-01-01