COOLING SYSTEM USING PROPANE COOLANT IN NATURAL GAS LIQUEFACTION PROCESS

PURPOSE:To provide an improved unit for pre-cooling natural gas or cooling the mixed coolant for natural gas liquefaction in the widely popular process using propane as a coolant. CONSTITUTION:As a heat exchanger for pre-cooling natural gas or cooling a mixed coolant for natural gas liquefaction, th...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	YAMAMOTO OSAMU, OMORI MOTOHIRO, OMORI KENRO, YOSHIKAWA YOSHITSUGU, NOZAWA MORIYUKI
Format:	Patent
Sprache:	eng
Schlagworte:	ADDING MATERIALS TO FUELS OR FIRES TO REDUCE SMOKE ORUNDESIRABLE DEPOSITS OR TO FACILITATE SOOT REMOVAL ADHESIVES BLASTING CHEMISTRY COLD ROOMS COMBINED HEATING AND REFRIGERATION SYSTEMS COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHERSUBCLASS DYES FIRELIGHTERS FUELS FUELS NOT OTHERWISE PROVIDED FOR HEAT PUMP SYSTEMS HEATING ICE-BOXES LIGHTING LIQUEFACTION SOLIDIFICATION OF GASES LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS LIQUEFIED PETROLEUM GAS LUBRICANTS MANUFACTURE OR STORAGE OF ICE MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE MECHANICAL ENGINEERING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS MIXTURES BY PRESSURE AND COLD TREATMENT NATURAL GAS NATURAL RESINS PAINTS PEAT PETROLEUM, GAS OR COKE INDUSTRIES POLISHES REFRIGERATION OR COOLING REFRIGERATORS SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BYSUBCLASSES C10G, C10K TECHNICAL GASES CONTAINING CARBON MONOXIDE WEAPONS
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Beschreibung
Zusammenfassung:	PURPOSE:To provide an improved unit for pre-cooling natural gas or cooling the mixed coolant for natural gas liquefaction in the widely popular process using propane as a coolant. CONSTITUTION:As a heat exchanger for pre-cooling natural gas or cooling a mixed coolant for natural gas liquefaction, the whole paths for the plate fin type heat exchangers which are set vertical so that the propane coolant passes through, preferably a plurality of the exchangers are arranged in parallel, are made almost equal to those for mixed coolant having a thermosiphon drum which is set almost horizontal and has an oblong shape. Thus, even when any propane coolant, natural gas or mixed coolant are in gas-liquid mixed phase, high efficiency of heat transfer can be attained and the size of the heat exchanger can be made smaller. Particularly, the thermosyphon drums are preferred from economical point of view, because they can also be used as a flush tank.