Heat recovery and power generation from industrial process strea

Details Heat recovery and power generation from industrial process strea Heat recovery and power generation from industrial process strea

1997-09-29

1998-12-01

Kamen, Noah P.

Power plants

Motive fluid energized by externally applied heat

Process of power production or system operation

423237, F01K 2506

Patent

active

058423451

ABSTRACT:
Work is recovered from a first process stream in a high temperature range by heating and vaporizing a condensate-containing mixed component working fluid, expanding the vapor in an expansion turbine to generate work, and condensing the turbine exhaust by indirect heat exchange with a second process stream in a low temperature range to provide the condensate-containing mixed component working fluid. The composition of the working fluid is changed in response to a change in the high temperature range, a change in the low temperature range, or changes in both temperature ranges in order to maintain the efficiency of the work recovery step. The working fluid can be a mixture of ammonia and water. The first and second process streams can be process streams in a combined cycle power generation system or an ammonia synthesis plant.

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