LOW EMISSION POWER GENERATION SYSTEM AND METHOD INCORPORATING CARBON DIOXIDE SEPARATION

• Main Authors: OELFKE Russel, H, HUNTINGTON Richard, A, MITTRICKER Franklin, F
• Format: Patent
• Language: English; Russian
• Published: 30.12.2016
• Subjects: AIR INTAKES FOR JET-PROPULSION PLANTS; BLASTING; CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSEGASES [GHG]; CHEMISTRY; COMBUSTION ENGINES; COMPOUNDS THEREOF; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS; ENGINE PLANTS IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNALCOMBUSTION ENGINES; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES ORENGINES IN GENERAL; GAS-TURBINE PLANTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; 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; INORGANIC CHEMISTRY; LIGHTING; MACHINES OR ENGINES IN GENERAL; MECHANICAL ENGINEERING; METALLURGY; NON-METALLIC ELEMENTS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGYGENERATION, TRANSMISSION OR DISTRIBUTION; SEPARATION; STEAM ENGINES; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS; TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINSTCLIMATE CHANGE; TRANSPORTING; WEAPONS

Methods and systems for COseparation in low emission power plants are provided. One system includes a gas turbine system that combusts a fuel and an oxidant in the presence of a compressed recycle stream to provide mechanical power and a gaseous exhaust. A purge stream is taken from the compressed recycle stream and directed to a COseparator configured to absorb COfrom the purge stream using a potassium carbonate solvent. Volatiles are removed from the rich solvent by stripping or by flashing to an intermediate pressure before the rich solvent is regenerated and COis removed. Предлагаются способы и системы отделения COв тепловых электростанциях с низкими выбросами. Одна из систем содержит газотурбинную систему, которая сжигает топливо и окислитель в присутствии потока сжатого рецикла с получением механической энергии и газообразного выхлопа. Продувочный поток отбирают из потока сжатого рецикла и направляют в сепаратор CO, выполненный с возможностью поглощения COиз продувочного потока с использованием растворителя на основе карбоната калия. Летучие вещества удаляют из обогащенного растворителя посредством отделения или посредством быстрого понижения давления до промежуточного давления, перед тем как обогащенный растворитель регенерируют, и удаляют CO.