Power plants – Combustion products used as motive fluid
Patent
1997-08-19
1999-07-27
Freay, Charles G.
Power plants
Combustion products used as motive fluid
60 39182, 60 3912, F02C 328, F02C 330
Patent
active
059270632
ABSTRACT:
The present invention is a high efficiency reformed methanol (syngas) gas turbine power plant. The invention utilizes a Back Pressure steam Turbine (BPT) to maximize the thermal efficiency and the power output of a reformed methanol gas turbine power generation system. Methanol feed is reformed to syngas (H.sub.2 and CO.sub.2) prior to combustion in the BPT turbine. The endothermic reforming reaction, and the generation of the significant amount of process steam essential for reforming, recovers most of the useful heat in the gas turbine exhaust gas. The process steam pressure is set by the gas turbine inlet requirements, and can be referred to as low pressure steam. Additional heat in the gas turbine exhaust gas is recovered by generating the system's process steam at an elevated pressure, rather than the required low pressure. This high pressure steam is used to drive a BPT, generating additional power and the discharged low pressure steam from the BPT is used as the process steam for the methanol reformer.
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Guide John J.
Janda Gary F.
Kuechler Keith H.
Mittricker Frank F.
Roberto Frank
Exxon Chemical Patents Inc.
Freay Charles G.
Keller Bradley A.
Kim Ted
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