Open AccessExperimental study on gasification of bituminutesous coal char with CO2 catalysed by Fe (NO3)3
Author(s) -
Xian Suo,
D. Y. Wang,
G. Zhang
Publication year - 2019
Publication title -
iop conference series. earth and environmental science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.179
H-Index - 26
eISSN - 1755-1307
pISSN - 1755-1315
DOI - 10.1088/1755-1315/354/1/012023
Subject(s) - char , isothermal process , coal , activation energy , reaction rate constant , reaction rate , saturation (graph theory) , analytical chemistry (journal) , chemistry , coal gasification , thermodynamics , materials science , mineralogy , catalysis , chemical engineering , kinetics , organic chemistry , physics , mathematics , quantum mechanics , combinatorics , engineering
Effect of transition metal Fe(come from analytically pure Fe(NO 3 ) 3 ·9H 2 O) on Jin Jie coal char isothermal gasification by carbon dioxide in the condition of normal pressure is investigated in a self-built fixed bed reactor. Experimental results show that the gasification activity of Jin Jie coal char increases with the increment of Fe, and the loading saturation level of Fe is 3%. Adding 3% Fe can reduce the gasification temperature by 90°C, and shorten the coal char gasification time by 95 minutesutes. The higher the gasification temperature, the greater the increase in gasification activity factor K and average gasification rate Rm. The parameter K and Rm reach the maximum at 3% catalyst addition at the same gasification temperature. Under a regime constant by chemical reaction, the reaction activation energy and the pre-exponential factor and reaction rate constant are calculated. The reaction rate constan of char loaded Fe increases around three times, and the activation energy constants with the raw char.