Patent ID: 8250996
Filing Date: 2012-08-28
Classification: C10J,C10K,F23C,F23D,F23J,Y02E,Y02P

Abstract:
1. A process for burning coal instead of oil comprising the following stages: coal gasification, wherein feeding coal and gasifying agent into a fixed bed gas-generated furnace and gasifying the coal to generate a hot low calorific value gas having a lower heating value in range of 5.02-6.66 MJ/Nm gas combustion, wherein introducing the generated hot gas into a burner used in steam injection boiler or heating furnace for heavy oil thermal recovery and burning the hot gas therein under a vacuum in range of 50-150 Pa, by mixing with a combustion air, which is introduced into said burner after being preheated to a temperature in range of 160-250° C.