Patent ID: 9150801
Filing Date: 2015-10-06
Classification: C01B,C10J

Abstract:
1. A system, comprising: a gasifier; and a first injector coupled to the gasifier; and a controller comprising a heat control mode and a gasification mode, wherein the controller is configured to control injection of a heat control fuel and an oxygen enriched air through the first injector into the gasifier for combustion during the heat control mode, wherein the heat control fuel is the same or different from a gasification fuel used during the gasification mode in the gasifier, and the controller is configured to control generation of the oxygen enriched air having air enriched with additional oxygen, and the heat control mode is configured to control heating of the gasifier to a temperature at or above a temperature threshold while the gasifier is not operating in the gasification mode, wherein the controller comprises at least one of: the heat control mode comprises a preheat control mode prior to the gasification mode and a heat maintenance mode after the gasification mode; or the heat control mode comprises an air/fuel heat mode, an oxygen enriched air/fuel heat mode, and a heat control transition configured to transition between the air/fuel heat mode and the oxygen enriched air/fuel heat mode; or any combination thereof.