LIQUEFACTION OF COAL

PURPOSE:To improve the conversion and the yield of liquefied oil and to reduce the yield of asphaltene, by liquefying coal at a high temp. under high pressure in the presence of a catalyst composed of finely divided natural pyrite. CONSTITUTION:A solvent such as creosote oil or naphtha is mixed with...

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Hauptverfasser:	YOSHIDA RIYOUICHI, HASEGAWA YOSHIHISA, NIHEI HIROYUKI, GOTOU FUJITAROU, NARITA HIDEO, MAEKAWA YUUSUKE, YOKOYAMA SHINICHI, UEDA SHIGERU, MIYAZAWA MAKOTO, OKUYA TAKESHI, YOSHIDA TADASHI, NAKADA YOSHINORI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY CRACKING HYDROCARBON OILS FUELS LUBRICANTS METALLURGY MINERAL WAXES PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA TECHNICAL GASES CONTAINING CARBON MONOXIDE
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Beschreibung
Zusammenfassung:	PURPOSE:To improve the conversion and the yield of liquefied oil and to reduce the yield of asphaltene, by liquefying coal at a high temp. under high pressure in the presence of a catalyst composed of finely divided natural pyrite. CONSTITUTION:A solvent such as creosote oil or naphtha is mixed with pulverized coal (e.g. anthracite or brown coal) having a particle size passing through a 50-mesh sieve in a weight ratio of 1:1-5:1. At least 2wt% (based on the quantity of coal) finely divided natural pyrite having a particle size passing through a 500-mesh sieve is added as a catalyst to the mixture. The mixture is then subjected to a liquefaction reaction in the presence of hydrogen at 300-550 deg.C under a pressure of 50-400kg/cm for 10-120min.