Patent ID: 7395670
Filing Date: 2008-07-08
Classification: F02C,F05D,F23K,F23R,Y02T

Abstract:
1. A method of preparing and introducing fuel into combustors of a gas turbine, said method comprising: introducing, into a catalytic partial oxidation reactor, a hydrocarbon containing feed stream comprising no less than about 15 percent by volume on a dry basis of hydrocarbons with at least two carbon atoms and/or at least about 3 percent by volume of olefins along with an oxygen containing stream and a steam stream so that a reactant mixture is obtained within the catalytic partial oxidation reactor, prior to contact with catalyst, having an oxygen to carbon ratio between about 0.08 and about 0.25 and a water to carbon ratio of between about 0.05 and about 0.5; the hydrocarbon containing feed stream being introduced into the catalytic reactor alone or in combination with the steam stream at a temperature of no greater than about 600° C.; reacting said reactant mixture within the catalytic partial oxidation reactor so that a product stream is produced at a temperature of between about 600° C. and about 860° C., the product stream having a hydrocarbon content consisting of methane, less than about 0.5 percent of olefins by volume on a dry basis, less than about 10 percent of alkanes with two or more carbon atoms on a dry basis and less than about 1 percent by volume on a dry basis of hydrocarbons other than methane, alkanes and olefins and a remaining content comprising hydrogen, carbon monoxide, carbon dioxide and water vapor; cooling the product stream; and introducing the product stream into the combustors so that the product stream constitutes at least part of the fuel required to support combustion within the combustors.