Underground coal gasification

Stuermer DH, Ng DJ, Morris CJ. 1982. Organic contaminants in groundwater near an underground coal gasification site in northeastern Wyoming. Environ Sci Technol 16 582-587. 

Figure 3. Underground coal gasification scheme (forward burn)...

Fig X Conceptual view of channel during underground coal gasification. [US. Deiwrmient ofEnergy)... 

Liu, S., Wang, Y., Yu, L. and Oakey, J. (2006) Thermodynamic equilibrium study of trace element transformation during underground coal gasification. Fuel Processing Technology, 87(3), 209-15. 

Coal gasification The conversion of coal to useful combustible gases (compare with underground coal gasification). 

Underground coal gasification The production of recoverable and useful combustible gases from the in situ heating of subsurface coal deposits. 

The Steady-State Permeation Model for Underground Coal Gasification... 

The last ten years have witnessed a number of extensive field tests of underground coal gasification (UCG) in the United States and Europe. Model development is essential to the proper understanding of these test results and to the planning of future experiments. This report will focus upon the steady-state "permeation" or "packed bed" model of in situ gasification (forward combustion mode). In this useful but idealistic model the coal bed is assumed to be uniformly permeable to reactant and product gases. 

Since 1975 there has been a substantial amount of research and development on underground coal gasification (UCG) for Texas lignite, stimulated by the large resources of deep-basin lignite and proximity to Industry in the Gulf Coast region which uses... 

Edgar, T, F. Humenick, M. J. Thompson, T. W. "Support Research on Chemical, Mechanical, and Environmental Factors in Underground Coal Gasification" Final Report to U.S. Department of Energy, Contract DE-AS20-81LC10713, 1984. 

Fig. 5-9. Arrival at a surface well of hydrocarbon gases following a subsurface coal-bum experiment at Rawlins, Wyoming (reproduced with permission of the Society of Petroleum Engineers from Jones and Thune, 1982, Surface detection of retort gases from an underground coal gasification reactor in steeply dipping beds near Rawlins, Wyoming, SPE 11050).

Brady, A coupled flow-transport-deformation model for underground coal gasification, this volume, 2004. 

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