Power plants – Combustion products used as motive fluid – Process
Reexamination Certificate
2006-07-18
2006-07-18
Casaregola, Louis J. (Department: 3746)
Power plants
Combustion products used as motive fluid
Process
C060S039120, C060S783000
Reexamination Certificate
active
07076957
ABSTRACT:
A method of heating a fluid in a fluid heater integrated with a gas turbine. Fuel is burned in a radiant section of the fluid heater to heat the fluid and to produce combustion gases for the heating a downstream convective section. The combustion is supported by a combined oxidant stream. An oxygen containing stream or the combined stream, which is made up in part by the oxygen containing stream is preheated through indirect heat transfer with a first gas turbine exhaust stream produced by the gas turbine. A second gas turbine exhaust stream, also produced by the gas turbine is combined with the oxygen containing stream to form the combined oxidant stream. As such, the available heat energy supplied to the fluid heater is supplied not only by the combustion but also the gas turbine. This allows for the fuel to be conserved or for increased fluid throughput.
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“Alternative Control Techniques Document—Nox Emissions from Process Heaters” (Revised), U.S. Environmental Protection Agency (1993) pp. Section 3.
Ahmed M. Mushtaq
Drnevich Raymond Francis
Casaregola Louis J.
Praxair Technology Inc.
Rosenblum David M.
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