High quality syngas production from catalytic coal gasification using disposable Ca(OH)(2) catalyst

CORC > 过程工程研究所 > 中国科学院过程工程研究所 > 多相复杂系统国家重点实验室

	High quality syngas production from catalytic coal gasification using disposable Ca(OH)(2) catalyst
	Chen, Zhaohui 1; Dun, Qimeng 2; Shi, Yong 1; Lai, Dengguo 1; Zhou, Yang 1; Gao, Shiqiu 1; Xu, Guangwen 1
刊名	CHEMICAL ENGINEERING JOURNAL
	2017-05-15
卷号	316 页码:842-849
关键词	Catalytic gasification Coal High quality syngas Disposable catalyst Ca(OH)(2) CH4
ISSN号	1385-8947
英文摘要	This study works on the production of high H-2/CO mole ratio and CH4-rich syngas suitable for methane synthesis from catalytic coal gasification using inexpensive and disposable Ca(OH)(2) in a fluidized bed with a continuous coal feeding rate of 1.2 kg/h. Experiments conducted at atmospheric pressure demonstrated that carbon conversion and gas yield increased markedly after loading Ca(OH)(2) into lignite, while CH4 yield was almost constant. Increasing excess oxygen ratio (ER), steam to carbon mole ratio (S/C) and catalytic gasification temperature could increase carbon conversion but went against CH4 production. At atmosphere pressure, CH4 was mainly derived from coal pyrolysis and raising carbon conversion thus led to the reduction of CH4 content in syngas. Elevating gasification pressure exhibited a significant effect in raising carbon conversion and encouraging CH4 formation. Increasing S/C and pressure as well as reducing ER and gasification temperature were beneficial to raise H-2/CO mole ratio in syngas. At 1.5 MPa, under conditions of ER = 0.050, S/C = 1.00 and gasification temperature of 800 degrees C, catalytic coal gasification achieved good results with carbon conversion of about 70.0% and CH4 yield of 0.142 N m(3)/kg-coal. And its producer gas, with the best H-2/CO mole ratio of about 3.0, was highly rich in CH4 with its content of 10.1 vol.% well matched in terms of SNG production. (C) 2017 Elsevier B.V. All rights reserved.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Environmental ; Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	INTEGRATED FLUIDIZED-BED ; LOW-RANK COAL ; STEAM GASIFICATION ; CALCIUM HYDROXIDE ; MINERAL MATTER ; BROWN-COAL ; PYROLYSIS ; METHANE ; CHAR ; POTASSIUM
收录类别	SCI
语种	英语
WOS记录号	WOS:000398985200088
内容类型	期刊论文
源URL	[http://ir.ipe.ac.cn/handle/122111/22455]
专题	过程工程研究所_多相复杂系统国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Multiphase Complex Syst, Beijing 100190, Peoples R China 2.Hebei Univ Technol, Sch Chem Engn, Tianjin 300130, Peoples R China
推荐引用方式 GB/T 7714	Chen, Zhaohui,Dun, Qimeng,Shi, Yong,et al. High quality syngas production from catalytic coal gasification using disposable Ca(OH)(2) catalyst[J]. CHEMICAL ENGINEERING JOURNAL,2017,316:842-849.
APA	Chen, Zhaohui.,Dun, Qimeng.,Shi, Yong.,Lai, Dengguo.,Zhou, Yang.,...&Xu, Guangwen.(2017).High quality syngas production from catalytic coal gasification using disposable Ca(OH)(2) catalyst.CHEMICAL ENGINEERING JOURNAL,316,842-849.
MLA	Chen, Zhaohui,et al."High quality syngas production from catalytic coal gasification using disposable Ca(OH)(2) catalyst".CHEMICAL ENGINEERING JOURNAL 316(2017):842-849.