PREPARATION OF REFORMED COAL AND TAR OIL

PURPOSE:To prepare reformed coal equivalent to high coking coal and tar oil in good efficiency, by subjecting a mixture of low-grade coal and heavy hydrocarbon to heat treatment to obtain a heat-treated substance which is in turn further treated by using a light hydrocarbon solvent. CONSTITUTION:A m...

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Bibliographische Detailangaben
Hauptverfasser:	YOSHINO YOSHIO, DOBASHI KOUJI, TORIMARU HIROYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL CHEMISTRY CRACKING HYDROCARBON OILS FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR LIQUEFIED PETROLEUM GAS LUBRICANTS METALLURGY MINERAL WAXES NATURAL GAS PEAT PETROLEUM, GAS OR COKE INDUSTRIES PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVEHYDROGENATION, OLIGOMERISATION, POLYMERISATION PYROLIGNEOUS ACID RECOVERY OF HYDROCARBON OILS FROM OIL-SHALE, OIL-SAND, ORGASES REFINING MIXTURES MAINLY CONSISTING OF HYDROCARBONS REFORMING OF NAPHTHA SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE WORKING-UP PITCH, ASPHALT, BITUMEN, TAR
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Beschreibung
Zusammenfassung:	PURPOSE:To prepare reformed coal equivalent to high coking coal and tar oil in good efficiency, by subjecting a mixture of low-grade coal and heavy hydrocarbon to heat treatment to obtain a heat-treated substance which is in turn further treated by using a light hydrocarbon solvent. CONSTITUTION:A mixture of one pt.wt. low-grade coal (e.g., a brown coal powder or a bituminous coal powder) and 1-10pts.wt. heavy hydrocarbon (e.g., coal tar or atmospheric distillation bottom oil of crude oil) is subjected to heat treatment at 300-500 deg.C. In the next step, one pt.wt. obtained heat-treated substance is mixed with 1-10pts.wt. light hydrocarbon solvent (a second solvent, e.g., naphtha or tung oil) and the obtained mixture is allowed to stand to effect phase separation. Subsequently, the upper layer is distilled to remove the second solvent and tar oil is taken out from the residual fraction while the lower layer is distilled to remove the second solvent and reformed coal is obtained from the residual fraction.