PLANT FOR COAL LIQUEFACTION OR PRODUCTION OF REGENERATED COAL

PURPOSE:To improve resistance to corrosion and oxidation and enhance economy, by using, as material for a container of a coal liquefaction or regenerated coal production plant, a steel in which Cr and/or Mo content is varied according to temperature within the container to which the steel is exposed...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SONE YUUJI, ONO HIROSHI, KURAHASHI HAYAO
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 resistance to corrosion and oxidation and enhance economy, by using, as material for a container of a coal liquefaction or regenerated coal production plant, a steel in which Cr and/or Mo content is varied according to temperature within the container to which the steel is exposed during operation of the plant. CONSTITUTION:Among containers used for a coal liquefaction or regenerated coal production plant which have an inner surface made of Cr and/or Mo-contg. steel, a steel having a total Cr and/or Mo content of below 6wt% is used for those exposed to a temp. of below 100 deg.C, a steel having a total Cr and/or Mo content of 6-14wt%, for those exposed to 100-200 deg.C, a steel having a total Cr and/or Mo content of 14-20wt% for those exposed to 200-400 deg.C and a steel having a total Cr and/or Mo content of 20wt% or higher for those exposed to above 400 deg.C.