Gasification of residual materials from coal liquefaction
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Gasification of residual materials from coal liquefaction

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

Subjects:

  • Coal liquefaction,
  • Coal gasification,
  • Fly ash

Book details:

Edition Notes

SeriesFE ; 2247-20
ContributionsRobin, Allen M, United States. Dept. of Energy
The Physical Object
Paginationv. :
ID Numbers
Open LibraryOL14879106M

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Gasification of residual materials from coal liquefaction. Type I evaluation of H-coal liquefaction residue from Illinois No. 6 coal as a feedstock for the Texaco Gasification Processes Type I evaluation of H-coal liquefaction residue from Illinois No. 6 coal as a feedstock for the Texaco Gasification . @article{osti_, title = {Gasification of residual materials from coal liquefaction. Evaluation of SRC ash concentrate from Kerr--McGee Corp. as feedstock to the Texaco Coal Gasification Process}, author = {Robin, A.M.}, abstractNote = {A laboratory evaluation of a pound sample of ash concentrate derived from the SRC process with a solvent deashing operation was completed. Gasification of residual materials from coal liquefaction. Evaluation of H-coal syncrude vacuum tower bottoms as feedstock to Texaco Coal Gasification Process. Evaluation of H-coal syncrude vacuum tower bottoms as feedstock to Texaco Coal Gasification Process. An experimental study on co-gasification of coal liquefaction residue and petroleum coke in carbon dioxide was investigated by thermogravimetric analysis. The temperature of the experiment was – K, and the isothermal ( K) kinetics were compared to evaluate the effect of loading of coal liquefaction residue on the gasification reactivity of petroleum by:

Liquefaction can be direct, from the coal itself, or indirect, from synthesis gas (CO and H 2) obtained by gasification of the coal. Coal liquefaction incorporates both an increase in the H/C ratio and removal of heteroatoms (S, N, O) and inorganic oxides (ash). Gasification and liquefaction of coal is able to reduce or eliminate unwanted emissions like nitrogen and sulphur. Conditions in the thermochemical process are highly reducing and sulphur is converted to substances like H 2 S, COS and mercaptans, and nitrogen to NH 3. These gases are produced at a high pressure and may be easily removed. Brown coal is an excellent feedstock for entrained-flow gasification if less than 1% of acidic material is added to improve slag fusibility. The studies with the mixture including residue show that gasification can be a means to dispose of the coal liquefaction by-product. The high sulfur content of the mixed feed will be converted to H 2 : Y. Taki, M. Maemura, S. Kawai, Y. Nakako, H. Narita. Both the direct coal liquefaction process (‘Bergius’) and the indirect liquefaction route through gasification were invented in Germany during the early part of the 20th century. In the run up to World War II, advances were made to adapt these technologies to produce synthetic fuels and chemical feedstocks from coal.

Topics examined include, among others, coal gasification and liquefaction science and technology, emissions from new coal technologies, lifecycle assessments, environmental impacts of new versus old coal technologies, hydrogen or other fuel production from coal, combining new coal technologies with carbon capture and storage. This chapter deals with coal gasification, which is a process that converts carbonaceous materials, such as coal, petroleum, petroleum coke, or biomass, into carbon monoxide and hydrogen. Coal gasification as a power-generation technology is gaining popularity due to the ready global availability of the raw material (coal), as well as positive environmental issues associated with this technology over . Robin A.M and Yang H.L. Gasification of Residual Materials from Coal Liquefaction [R] Fossil Energy: Energy and Development Administration Google Scholar [5]. Coal utilization - Coal utilization - Gasification: While the goal of combustion is to produce the maximum amount of heat possible by oxidizing all the combustible material, the goal of gasification is to convert most of the combustible solids into combustible gases such as carbon monoxide, hydrogen, and methane. During gasification, coal initially undergoes devolatilization, and the residual.