POWER GENERATION APPARATUS AND METHOD

摘要

Power generation apparatus is described and claimed, the apparatus comprising: a generator (20); a gas turbine (12) comprising a combustor (13), a compressor (11) having an air feed and being operable to produce compressed air from said air feed, means for delivering a portion of said compressed air into the combustor, and an expander (12) arranged to receive hot combustion products from the combustor (13) and to drive the compressor (11) and the generator (20) with work produced from the expansion of the hot combustion products; extraction means (112) for extracting from the gas turbine a remaining portion of said compressed air; fuel gas supply means for supplying fuel gas to the combustor, including a gasification vessel (3) inside which fuel gas is produced by the partial oxidation of a carboniferous feedstock; an air separation unit (5) operable to produce an oxygen-enriched product from a compressed air feed and arranged to supply at least a portion of said oxygen-enriched product to the gasification vessel for said partial oxidisation; and air compression means, independent of the gas turbine compressor, arranged to provide said compressed air feed to the air separation unit, the power generation apparatus comprising no means for feeding compressed air extracted from the gas turbine to the air separation unit. A Clean Power Generation (CPG) facility comprising the power generation apparatus, and a corresponding method for generating power are also described and claimed.