measurement of the flow properties of coals for in-situ gasification
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measurement of the flow properties of coals for in-situ gasification by University of Pittsburgh. Dept. of Chemical and Petroleum Engineering

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Published by Dept. of Energy, for sale by the National Technical Information Service in [Washington], Springfield, Va .
Written in English


  • Coal gasification

Book details:

Edition Notes

SeriesCOO ; 4639-1
ContributionsReznik, Alan A, Fulton, Paul F, Lien, Cheng Li, United States. Dept. of Energy
The Physical Object
Paginationv. :
ID Numbers
Open LibraryOL14877844M

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Underground coal gasification (UCG) has been identified as an environmentally friendly technique for in-situ gasification of deep un-mineable coal seams. As coal is gasified, a cavity is created. @article{osti_, title = {In situ measurements of boiler ash deposit emissivity and temperature in a pilot-scale combustion facility}, author = {Shaw, D W and Smouse, S M}, abstractNote = {An instrument for in situ determination of ash deposit temperature and emissivity has been designed, assembled, calibrated, and used to characterize deposits in a coal-fired pilot-scale combustor. O.P. Mahajan, P.L. Walker Jr., in Analytical Methods for Coal and Coal Products, Volume II, Publisher Summary. This chapter presents approaches to measure gasification rates and explains how rates that are found to be widely different for coal-derived chars depend on measurable properties of the chars. Interest in coal gasification has suddenly been revived, initially because of interest. in-situ coal gasification as a potential new energy source. Much of this work is concentrated on gasification of sub- bituminous Western coals ‘-’ One unresolved question re-.

Air and water relative permeabilities have been measured for numerous samples of Pittsburgh and Pocahontas coals. Tests were performed under steady-state conditions for both drainage and imbibition cycles. Measurement of the flow properties of coals for in-situ gasification. Quarterly report, December February [Different gases. History of coal gasification starts from early 20th century, but the real commercial size of gasifiers can be supplied from limited vendors. Table 1 shows the commercially available coal gasifiers that can treat coal over 1, ton/day. To reach this size of gasifiers, steps of development are necessary: bench scale, ton/day, ton/day, and finally the 1,, ton/day Cited by: 1.   Abstract. The utilization of CaSO 4-based oxygen carrier suffers the deactivation problem caused by sulphur capture the gas sulphides and to improve the stability of CaSO 4 oxygen carrier, calcined limestone was introduced into the fuel reactor of Chemical Looping Combustion (CLC). Kinetic behaviors and thermodynamics of the combined process of coal gasification and oxygen Cited by: 2. Biomass is relatively cleaner than coal and is the only renewable carbon resource that can be directly converted into fuel. Biomass can significantly contribute to the world’s energy needs if harnessed sustainably. However, there are also problems associated with the thermal conversion of biomass. This paper investigates and discusses issues associated with the thermal conversion of coal and Cited by:

A coupled thermo-mechanical model has been developed to assess permeability changes in the vicinity of an underground coal gasification (UCG) reactor resulting from excavation and thermo-mechanical effects. Thereto, we consider a stepwise UCG reactor excavation based on a pre-defined coal consumption rate and dynamic thermal boundary conditions. Simulation results demonstrate that Cited by: Ash and slag properties for co-gasification of sewage sludge and coal: An experimentally validated modeling approach. Fuel Processing Technology, (), pp. Bader, A., Hartwich, M., Richter, A., Meyer, B. Numerical and experimental study of heavy oil gasification in an entrained-flow reactor and the impact of the burner concept. In IGCC technology, coal is gasified to produce a synthesis gas—principally carbon monoxide (CO) and hydrogen (H 2)—which is cleaned to remove particulates and other contaminants (e.g., sulfur and mercury compounds), then burned in a gas turbine to generate is recovered from the combustion gases to generate additional electricity. Handbook on Coal, Lignin, Wood and Rosin Processing; Handbook on Coal, Lignin, Wood and Rosin Processing () (Best Seller) () The Roga index is an alternate procedure for measuring the caking properties of coals. It requires a special drum tumbler and an anthracite with specified properties to mix with the coal before carbonizing.