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Title: The synergistic effect between coal macerals during hydropyrolysis

Abstract

Using TGA technology, the volatile matter yields during hydropyrolysis of Chinese Shenmu coal and its derived high purity macerals under different heating rates and pressures were investigated. The {Delta}W, calculated by the difference between the volatile matter yield of parent coal and that of macerals, is used to evaluate the synergistic effect of macerals during hydropyrolysis. The results showed that with increasing pressure and decreasing heating rate, the Delta W increases. At temperature of 500{sup o}C and pressure of 3 MPa, the difference of volatile matter yield between parent coal and vitrinite reaches the maximum and the {Delta} W also occurs the highest value of 14.1%, suggesting the existence of the synergistic effect between macerals during hydropyrolysis. Based on the structural characteristics of macerals and the basic knowledge of hydropyrolysis, the possible explanation for the synergism are proposed.

Authors:
; ; ;  [1]
  1. CAS, Taiyuan (China)
Publication Date:
OSTI Identifier:
20885782
Resource Type:
Journal Article
Resource Relation:
Journal Name: Energy Sources, Part A: Recovery, Utilization, and Environmental Effects; Journal Volume: 29; Journal Issue: 2
Country of Publication:
United States
Language:
English
Subject:
01 COAL, LIGNITE, AND PEAT; PYROLYSIS; HYDROGENATION; MACERALS; SYNERGISM; THERMAL GRAVIMETRIC ANALYSIS; VOLATILE MATTER; DEVOLATILIZATION; YIELDS; HEATING RATE; PRESSURE DEPENDENCE; VITRINITE

Citation Formats

Sun, Q., Li, W., Chen, H., and Li, B. The synergistic effect between coal macerals during hydropyrolysis. United States: N. p., 2007. Web. doi:10.1080/009083190932178.
Sun, Q., Li, W., Chen, H., & Li, B. The synergistic effect between coal macerals during hydropyrolysis. United States. doi:10.1080/009083190932178.
Sun, Q., Li, W., Chen, H., and Li, B. Mon . "The synergistic effect between coal macerals during hydropyrolysis". United States. doi:10.1080/009083190932178.
@article{osti_20885782,
title = {The synergistic effect between coal macerals during hydropyrolysis},
author = {Sun, Q. and Li, W. and Chen, H. and Li, B.},
abstractNote = {Using TGA technology, the volatile matter yields during hydropyrolysis of Chinese Shenmu coal and its derived high purity macerals under different heating rates and pressures were investigated. The {Delta}W, calculated by the difference between the volatile matter yield of parent coal and that of macerals, is used to evaluate the synergistic effect of macerals during hydropyrolysis. The results showed that with increasing pressure and decreasing heating rate, the Delta W increases. At temperature of 500{sup o}C and pressure of 3 MPa, the difference of volatile matter yield between parent coal and vitrinite reaches the maximum and the {Delta} W also occurs the highest value of 14.1%, suggesting the existence of the synergistic effect between macerals during hydropyrolysis. Based on the structural characteristics of macerals and the basic knowledge of hydropyrolysis, the possible explanation for the synergism are proposed.},
doi = {10.1080/009083190932178},
journal = {Energy Sources, Part A: Recovery, Utilization, and Environmental Effects},
number = 2,
volume = 29,
place = {United States},
year = {Mon Jan 15 00:00:00 EST 2007},
month = {Mon Jan 15 00:00:00 EST 2007}
}