Production of syngas from steam gasification of three different ranks of coals and related reaction kinetics
Production of syngas from steam gasification of three different ranks of coals and related reaction kinetics
复制标题
三种不同等级煤蒸汽气化生产合成气及相关反应动力学
DOI：
--
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发表时间：
2020-04
影响因子：
5.7
通讯作者：
Quansheng Liu
中科院分区：
文献类型：
--
作者：
Yunfei Wang;Quansheng Liu
The steam gasification properties of three different ranks of coals, Shengli lignite (SL), Shenhua.subbituminous coal (SH), and Tavan Tolgoi anthracite (TT), were investigated using a lab-scale fixedbed reactor, and the thermodynamic equilibrium constant and kinetics of the reaction were analyzed..The results showed that the aromaticity and condensation of aromatic structures in SL, SH, and TT.became higher, and the maturity of organic substance became lower. The steam gasification reaction.showed that the syngas from low-rank SL had a high H2/CO molar ratio, while the syngas from highrank TT had relatively high CO content. The direct carbon gasification reactions for these three.different ranks of coals were far from in equilibrium; the water gas shift reaction of SL was near.equilibrium, and the degree of reaction for SL was higher than that of SH and TT. We studied a random.pore model (RPM), shrinking core model (SCM), and hybrid model (HM), and the hybrid model was.found to be the most suitable model of the three for fitting the steam gasification reactions of the.three types of coal. It had high fitting correlation coefficient R2 values (ranging from 0.9939 to 0.9990).and small average error q values (ranging from 0.009 to 0.016). The apparent activation energy E.values of SL, SH, and TT fitted by HM were 179.10, 48.14, and 63.06 kJ/mol, respectively, and the.corresponding pre-exponential factor k0 values were 3.14 107., 1.01, and 1.22 min1., respectively. This.study finds that the steam gasification of SL, SH, and TT coal samples consists of homogeneous phase.reaction and shrinking core reaction.
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DOI：
10.1080/15567036.2011.586986
发表时间：
2013-05
期刊：
Energy Sources, Part A: Recovery, Utilization, and Environmental Effects
影响因子：
--
作者：
X. Wang;J. Chen;B. Hong;G. Yu;F. Wang
通讯作者：
X. Wang;J. Chen;B. Hong;G. Yu;F. Wang
影响因子：
7.4
作者：
T. Liliedahl;K. Sjöström
通讯作者：
T. Liliedahl;K. Sjöström
影响因子：
3
作者：
Ibarra, JV;Munoz, E;Moliner, R
通讯作者：
Moliner, R
影响因子：
3.5
作者：
PAINTER, PC;SNYDER, RW;DAVIS, A
通讯作者：
DAVIS, A
影响因子：
5.3
作者：
MIURA, K;SILVESTON, PL
通讯作者：
SILVESTON, PL