Power Recovery Systems And Hot Gas Expanders.

Abstract

As the cost of energy has always been a substantial factor in the overall cost of oil refining, engineers have devoted a great deal of attention to recovering the available energy in the high temperature flue gas of Catalytic Cracking Units. The generally accepted method to recover the heat has been to channel the flue gas through a CO burning boiler or process furnace. In this method, however, a large amount of the available energy is wasted because of required throttling of the flue gas (40 - 70 BTU/#). A more efficient design, therefore, required the replacement of the throttling devices hut also necessitated the development of two major system components.