POWER GENERATION BY RECOVERY OF SENSIBLE HEAT OF COKE OVEN GAS

PURPOSE:To recover heat by recovering high-temp. sensible heat of a coke oven gas by separate heat exchange in the first and second cooling zones by the use of a heavy tar and aq. ammonia as a heat exchange medium, respectively, is said first and second cooling zones, and to use the recovered heat f...

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Bibliographische Detailangaben
Hauptverfasser:	TAKETOMO EIJI, KAMEDA TAKASHI, FUJIURA MASAMI, KAJITANI YOSHIAKI, HOSODA SHIROU
Format:	Patent
Sprache:	eng
Schlagworte:	BLASTING CHEMISTRY CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION ORPROCESSING OF GOODS ENGINE PLANTS IN GENERAL ENGINE PLANTS NOT OTHERWISE PROVIDED FOR ENGINES USING SPECIAL WORKING FLUIDS OR CYCLES FUELS GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS HEAT EXCHANGE IN GENERAL HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS,IN WHICH THE HEAT-EXCHANGE MEDIA COME INTO DIRECT CONTACTWITHOUT CHEMICAL INTERACTION HEATING LIGHTING LUBRICANTS MACHINES OR ENGINES IN GENERAL MECHANICAL ENGINEERING METALLURGY PEAT PETROLEUM, GAS OR COKE INDUSTRIES PURIFYING OR MODIFYING THE CHEMICAL COMPOSITION OF COMBUSTIBLEGASES CONTAINING CARBON MONOXIDE STEAM ACCUMULATORS STEAM ENGINE PLANTS STEAM ENGINES TECHNICAL GASES CONTAINING CARBON MONOXIDE TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To recover heat by recovering high-temp. sensible heat of a coke oven gas by separate heat exchange in the first and second cooling zones by the use of a heavy tar and aq. ammonia as a heat exchange medium, respectively, is said first and second cooling zones, and to use the recovered heat for power generation. CONSTITUTION:In a coke oven gas passage, a riser outlet bent 1 and a dry main 2 are equipped with a spray nozzle 4 for injecting a heavy tar to constitute the first cooling zone. An off-take main 5 or a suction main 8 is equipped with a spray nozzle 7 for injecting aq. ammonia to constitute the second cooling zone. A low-boiling working fluid such as flon for power generation is subjected to heat exchange with heated aq. ammonia. The cooled aq. ammonia is recycled to the second cooling zone. The preheated working fluid is heated by heat exchange with primarily cooled heavy tar and converted to steam, which drives a power generating turbine. The heavy tar is recycled again.