A NEW CHANNEL MODEL FOR UNDERGROUND GASIFICATION OF THIN, DEEP COAL SEAMS

Authors
VANBATENBURG DW BIEZEN ENJ BRUINING J
Citation
Dw. Vanbatenburg et al., A NEW CHANNEL MODEL FOR UNDERGROUND GASIFICATION OF THIN, DEEP COAL SEAMS, In situ, 18(4), 1994, pp. 419-451
Citations number
28
Categorie Soggetti
Energy & Fuels","Metallurgy & Mining",Engineering,"Engineering, Chemical
Journal title
In situ → ACNP
ISSN journal
01462520
Volume
18
Issue
4
Year of publication
1994
Pages
419 - 451
Database
ISI
SICI code
0146-2520(1994)18:4<419:ANCMFU>2.0.ZU;2-E
Abstract
A new method for calculating product gas composition and coal consumpt ion rate from a ''channel type'' underground gasification process has been developed. The model comprises radiant heat exchange between chan nel walls and natural-convection-driven mass transfer within a section of the channel. The model is used to demonstrate the influence of ope rating conditions such as pressure, air injection rate, and water inje ction rate on product gas composition. Model predictions are, furtherm ore, compared with observations from field trials.