Fleksibelt anlegg for kondensert naturgass

• Main Authors: MILLER MICHAEL R, BRENNAN JUSTIN G, NORMAN GARTH M, RASMUSSEN CHAD C
• Format: Patent
• Language: Norwegian
• Published: 05.12.2012
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; COMBUSTION ENGINES; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; DYNAMO-ELECTRIC MACHINES; ELECTRICITY; ENGINE PLANTS IN GENERAL; GAS-TURBINE PLANTS; GENERATION; HEAT PUMP SYSTEMS; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; INDEXING SCHEME FOR ASPECTS RELATING TONON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES ORJET-PROPULSION PLANTS; INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUSSUBCLASSES OF CLASSES F01-F04; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; LIQUEFACTION, SOLIDIFICATION OR SEPARATION OF GASES OR GASEOUS; MACHINES OR ENGINES IN GENERAL; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; MIXTURES BY PRESSURE AND COLD TREATMENT; NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES; REFRIGERATION OR COOLING; STEAM ENGINES; WEAPONS

Den foreliggende teknikk vedrører et fleksibelt anlegg for kondensert naturgass (LNG) som kan benyttes til eksternt elektrisk nett for å importere eller eksportere elektrisk kraft. Utførelseseksempler tilveiebringer en fremgangsmåte for produksjon av LNG som innbefatter produksjon av en basislastkapasitet av kjølekapasitet for LNG-produksjon fra et første kompresjonssystem. Elektrisk kraft kan produseres fra en andre kompressorstreng dersom elektrisk kraft behøves av et eksternt kraftnett, eller en andre mengde kjølekapasitet kan tilveiebringes av den andre kompressorstrengen dersom tilførsel av naturgass er tilgjengelig og det eksterne nettet ikke behøver kraft. The present techniques are directed to a flexible liquefied natural gas (LNG) plant that may be tied to an external electric grid for importing or exporting electric power. Exemplary embodiments provide a method for producing LNG that includes producing a base load capacity of refrigeration capacity for LNG production from a first compression system. Electricity may be produced from a second compressor string if electricity is needed by an external power grid, or a second amount of refrigeration capacity may be provided by the second compressor string is natural gas feed is available and the external grid does not need power.