Experimental study on rich oxygen gasification and ash character in entrained flow coal gasifier

Baiqian Dai, Xiaojiang Wu, Tong Lou, Zhongxiao Zhang

Research output: Chapter in Book/Report/Conference proceedingConference PaperResearchpeer-review

3 Citations (Scopus)

Abstract

Entrained flow gasifier with large capacity and slagging tap is usually use for IGCC and large scale chemical industrial factory. While, there are 57% of reserved coal is high fusion temperature coal, which cannot satisfy the requirement of the gasification for slagging tap. Therefore, two typical kinds of Chinese coals were selected and gasified in a lab-scale down-flow gasifier with feeding rate at around 1kg/h. The results show that along with the increasing temperature, the carbon conversion and cold gas efficiency will be increased quickly when temperature is below 1400°C, and then increased slowly when above 1400°C. The optimum O/C molar ratio is around 1:1, the cold gas efficiency and carbon conversion under this experimental condition (1300-1400°C) are separately 31% and 80%. At the optimum gasification condition, increasing the residence time will also increase the coal gas concentration, carbon conversion and cold gas efficiency. Under this experimental condition, the best residence time is at least 1.5~2.0s.

Original languageEnglish
Title of host publicationAdvanced Materials Research
EditorsQunjie Xu, Yongguang Li, Xiu Yang
PublisherTrans Tech Publications
Pages1405-1411
Number of pages7
ISBN (Print)9783037859728
DOIs
Publication statusPublished - 2014
Externally publishedYes
EventInternational Conference on Energy, Environment and Sustainable Development 2013 - Shanghai, China
Duration: 12 Nov 201313 Nov 2013
Conference number: 3rd
http://www.iceesd2018.org/2013/Index.asp

Publication series

NameAdvanced Materials Research
PublisherTrans Tech Publications
Volume860-863
ISSN (Print)1022-6680

Conference

ConferenceInternational Conference on Energy, Environment and Sustainable Development 2013
Abbreviated titleEESD 2013
Country/TerritoryChina
CityShanghai
Period12/11/1313/11/13
Internet address

Keywords

  • Entrained flow bed
  • High ash slag fusibility coal
  • Rich oxygen gasification

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