Patent
Coal liquefaction using carbon radical scavengers
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In this article, the authors describe a scenario in which a COAL LIQUIFACTION YIELDS are increased by LIQUEFYing the COAL in a LIQUITATION ZONE as a SLURRY in a HYDROGENDONOR SOLVENT in the PRESENCE of a CARBON RADICAL SCAVENGER SELECTED from QUINONES and the HALOGENS INDINE, BROMINE, AND CHLORINE, and the HYDRogEN HALIDES THEREOF.Abstract:
COAL LIQUIFACTION YIELDS ARE INCREASED BY LIQUEFYING THE COAL IN A LIQUEFACTION ZONE AS A SLURRY IN A HYDROGENDONOR SOLVENT IN THE PRESENCE OF A CARBON RADICAL SCAVENGER SELECTED FROM QUINONES AND THE HALOGENS INDINE, BROMINE AND CHLORINE, AND THE HYDROGEN HALIDES THEREOF. PREFERABLY A COAL LIQUIDS STREAM WHICH BOILS WITHIN THE RANGE FROM ABOUT 500*F. TO ABOUT 1000*F. IS OXIDIZED TO GENERATE QUINONES, AND THE OXIDIZED STREAM IS RECYCLED TO THE LIQUEFACTION ZONE.read more
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Liquefaction of coal
Robert C. Green,Robert L Dubell +1 more
TL;DR: In this article, a coal-liquefaction process is described, where feed coal is contacted with molecular hydrogen and a hydrogen-donor solvent in a liquefaction zone to form coal liquids and vapors and coal liquids in the solvent boiling range are thereafter hydrogenated to produce recycle solvent and liquid products.
Patent
Coal liquefaction process
Karl W. Plumlee,Lonnie W. Vernon +1 more
TL;DR: In this paper, the quinone compound acts as a hydrogenation catalyst, causing adequate hydrogenation of coal within the coal liquefaction zone in the presence of the molecular hydrogen without any necessity of employing a hydrogen donor solvent.
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Pyrolysis process for producing condensed stabilized hydrocarbons utilizing a beneficially reactive gas
TL;DR: In this article, a process for recovery of values contained in solid carbonaceous material is described, in the presence of a carbon containing solid particulate source of heat and a beneficially reactive transport gas in a transport flash pyrolysis reactor.
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Production of hydrogenated coal liquids
TL;DR: In this paper, a coal-liquefaction process is described, where feed coal is contacted with molecular hydrogen and hydrogen-donor solvent in a liquefaction zone to form coal liquids and vapors and coal liquids in the solvent boiling range are thereafter hydrogenated to produce recycle solvent and liquid products.