초록 ▼

An air supply system for the catalyst regeneration zone of a fluidized catalytic cracking unit also supplies a pressurized air stream to the turbine of an electrical generating plant. The compressor which produces the pressurized air stream is driven by passing the flue gas of the regeneration zone

An air supply system for the catalyst regeneration zone of a fluidized catalytic cracking unit also supplies a pressurized air stream to the turbine of an electrical generating plant. The compressor which produces the pressurized air stream is driven by passing the flue gas of the regeneration zone through a power recovery expander. Preferably, the pressurized air stream is first heated by heat exchange against the turbine effluent and then admixed with hot gas from separate turbin-type gas generators prior to being passed into the turbine. This provides a very practical and relatively low-cost cogeneration process.

대표청구항 ▼

A process for generating electrical power which comprises the steps of: (a) producing a pressurized air stream by compressing air to a superatmospheric pressure in a compressor driven by a power recovery expander which receives as a motive stream the flue gas stream of the catalyst regeneration zone

A process for generating electrical power which comprises the steps of: (a) producing a pressurized air stream by compressing air to a superatmospheric pressure in a compressor driven by a power recovery expander which receives as a motive stream the flue gas stream of the catalyst regeneration zone of a fluidized catalytic cracking unit; (b) heating the pressurized air stream by indirect heat exchange; and, (c) passing the pressurized air stream and a high temperature gas stream through a turbine which drives an electrical generator and thereby producing a turbine effluent stream.