Rattan Kumar Tawney

age ~81

from Boyds, MD

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Method And Apparatus For Refueling Existing Natural Gas Combined Cycle Plant As A Non-Integrated Gasification Combined Cycle Plant
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US Patent:

8118895, Feb 21, 2012
Filed:

Mar 29, 2008
Appl. No.:

12/079733
Inventors:

Harvey Wen - Boyds MD, US
Rattan K. Tawney - Boyds MD, US
Assignee:

Bechtel Power Corporation - Frederick MD
International Classification:

C01B 3/24
US Classification:

481983, 48197 R, 48 76, 481279, 60682, 60650, 60655, 60780, 4232451
Abstract:

A process of generating power utilizing a low level heat from a raw syngas produced in a quench gasifier is disclosed. The process includes a first stage that includes: producing raw syngas at the quench gasifier, making 150 psi saturated steam from the produced raw syngas, superheating the saturated steam, and using the superheated saturated steam in a low pressure steam turbine to generate power. The process includes a second stage that includes: providing the raw syngas and a process condensate stream to a thermal fluid vaporizer to vaporize an organic thermal fluid, and using the vaporized organic thermal fluid in an expander turbine to generate power via an organic Rankine cycle.