Estimation of Effective Diffusion Coefficient of O2 in Ash Layer in Underground Coal Gasification by Thermogravimetric Apparatus

Estimation of Effective Diffusion Coefficient of O2 in Ash Layer in Underground Coal Gasification by Thermogravimetric Apparatus

Underground coal gasification (UCG) proceeds generally in the presence of an ash layer on coal (or char) surface. The ash layer increases the mass transfer resistance of O2 to the gasification surface, which may become the limiting step of whole process. This paper studies O2 diffusion in ash layer...

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Bibliographic Details
Main Authors: Xi Lin, Qingya Liu, Zhenyu Liu
Format: Article
Language:English
Published: MDPI AG 2018-02-01
Series:Energies
Subjects:
underground coal gasification
ash layer
effective diffusion coefficient
internal diffusion resistance
Online Access:http://www.mdpi.com/1996-1073/11/2/460

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http://www.mdpi.com/1996-1073/11/2/460

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