Experimental study on coal multi-generation in dual fluidized beds View Full Text


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Article Info

DATE

2007-08

AUTHORS

Xiaoxu Fan, Qinggang Lu, Yongjie Na, Qi Liu

ABSTRACT

An atmospheric test system of dual fluidized beds for coal multi-generation was built. One bubbling fluidized bed is for gasification and a circulating fluidized bed for combustion. The two beds are combined with two valves: one valve to send high temperature ash from combustion bed to the gasification bed and another valve to send char and ash from gasification bed to combustion bed. Experiments on Shenhua coal multi-generation were made at temperatures from 1112 K to 1191 K in the dual fluidized beds. The temperatures of the combustor are stable and the char combustion efficiency is about 98%. Increasing air/coal ratio to the fluidized bed leads to the increase of temperature and gasification efficiency. The maximum gasification efficiency is 36.7% and the calorific value of fuel gas is 10.7 MJ/Nm3. The tar yield in this work is 1.5%, much lower than that of pyrolysis. Carbon conversion efficiency to fuel gas and flue gas is about 90%. More... »

PAGES

277-282

References to SciGraph publications

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s11630-007-0277-x

DOI

http://dx.doi.org/10.1007/s11630-007-0277-x

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1015545495


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