METHODS AND APPARATUS FOR POWER RECOVERY IN FLUID CATALYTIC CRACKING SYSTEMS

摘要

A co-generation process for a regenerator in an FCC system having a reactor and a regenerator includes the steps of introducing flue gas from the regenerator into a heating unit at a first location of the heating unit, and introducing an oxygen/fuel gas mixture into the heating unit at a second location of the heating unit apart from the first location, and combusting the oxygen/fuel gas mixture in the heating unit at the second location to form a hot combustion gas. The process further includes the steps of combining the hot combustion gas and the flue gas at a third location of the heating unit apart from the first location to produce heated flue gas, heating water and/or steam with the heated flue gas to produce a heated steam, and introducing the heated steam into a turbine to extract energy from the heated steam.

主权项

1. A co-generation process for a regenerator in a fluidized catalytic cracking (FCC) system having a reactor and a regenerator, the process comprising the steps of:
introducing flue gas from the regenerator into a heating unit at a first location of the heating unit, and introducing an oxygen/fuel gas mixture into the heating unit at a second location of the heating unit apart from the first location; combusting the oxygen/fuel gas mixture in the heating unit at the second location to form a hot combustion gas; combining the hot combustion gas and the flue gas at a third location of the heating unit apart from the first location to produce heated flue gas; heating water and/or steam with the heated flue gas to produce a heated steam; and introducing the heated steam into a turbine to extract energy from the heated steam.