Patent ID: 9085738
Filing Date: 2015-07-21
Classification: C10J,F23K,F26B,Y02E

Abstract:
1. A system, comprising: a non-slurry solid feedstock supply; a gasifier configured to receive a non-slurry solid feedstock from the non-slurry solid feedstock supply; a plant component configured to generate a medium pressure steam; a first heat exchanger fluidly coupled to the plant component by using a fluid conduit; and a controller communicatively coupled to the plant component and programmed to control the transfer of the medium pressure steam from the plant component to the first heat exchanger by using the fluid conduit so that the medium pressure steam has a pressure of approximately 75 to 900 pounds per square inch when exiting the plant component, and wherein the first heat exchanger is configured to transfer heat from the medium pressure steam to the non-slurry solid feedstock prior to receipt by the gasifier, and the controller is programmed to control the plant component to not let down the steam pressure prior to the medium pressure steam entering the first heat exchanger, wherein the plant component comprises at least one of a sulfur recovery unit, a shift reactor, or a combination thereof, disposed in an integrated gasification combined cycle (IGCC) plant, and wherein the plant component is disposed downstream from the gasifier.