METHOD FOR ESTIMATION OF COD IN GAS LIQUOR GENERATED IN MANUFACTURE OF COKE

PURPOSE:To accurately estimate the COD in a gas liquor generated when coke is manufactured by predetermining the COD in the gas liquor generated when each constituent coal of a coal blend is carbonized and calculating the weighted average of the measured values based on the blending ratio of the coa...

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Bibliographische Detailangaben
Hauptverfasser:	TAKAHASHI HIROSHI, AKAI KAZUTAKA, TORIMARU HIROYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMISTRY DESTRUCTIVE DISTILLATION OF CARBONAGEOUS MATERIALS FORPRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS FUELS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LUBRICANTS MEASURING METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES PHYSICS TECHNICAL GASES CONTAINING CARBON MONOXIDE TESTING
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Beschreibung
Zusammenfassung:	PURPOSE:To accurately estimate the COD in a gas liquor generated when coke is manufactured by predetermining the COD in the gas liquor generated when each constituent coal of a coal blend is carbonized and calculating the weighted average of the measured values based on the blending ratio of the coal blend. CONSTITUTION:A sample of each constituent coal of a coal blend for manufacture of coke is put in a quartz boat 1 which is placed in a reaction tube 2 made of quartz. This tube 2 is then set in such a manner that it will pass through a primary decomposition oven 3 and a secondary decomposition oven 4. The coal sample is heated, and a gas and liquid generated by thermal decomposition of coal are collected by a cold trap 6 and a gas holder 7 to determine the COD value. The weighted average of the measurements on samples of every constituent coal is calculated based on the blending ratio of a coal blend, and the COD in a gas liquor generated when coke is manufactured by carbonizing the coal blend is estimated based on the calculated value.