Vikram S Shabde

US Patent:

8292989, Oct 23, 2012

Filed:

Oct 30, 2009

Appl. No.:

12/609076

Inventors:

Frederic Z. Kozak - Knoxville TN, US
Arlyn V. Petig - Knoxville TN, US
Vikram Shabde - Knoxville TN, US

Assignee:

ALSTOM Technology Ltd - Baden

International Classification:

B01D 53/14

US Classification:

95169, 95191, 95199, 95207, 95229, 95236, 96234, 96242

Abstract:

A power generation plant (), a method, and a COcapture system () for removing carbon dioxide () from a flue gas stream () are disclosed. As shown in FIG. , a COcapture system (), comprises an absorber vessel (), a water wash vessel (), and a stripper (). The COcapture system () can be configured to introduce both a lean ionic ammonia solution () from a regeneration system () and a flue gas stream () from a cooling system () and to provide a rich ionic ammonia solution () to a regeneration system (), wherein the introduction of the lean ionic ammonia solution () to the flue gas stream () produces a flue gas substantially devoid CO(). The water wash vessel () can be configured to receive the flue gas substantially devoid CO() and produce ammoniated water () by introducing water () to the flue gas substantially devoid CO(). The stripper () can be configured to receive the ammoniated water () and to remove ammonia () from the ammoniated water () thereby producing a cleaned flue gas stream (), the stripper () being operable in at least partial vacuum conditions.

US Patent:

20110120128, May 26, 2011

Filed:

Nov 20, 2009

Appl. No.:

12/622748

Inventors:

Nareshkumar B. Handagama - Knoxville TN, US
Stephen Hepner - Althausern, CH
Raesh R. Kotdawala - Knoxville TN, US
Jacques Marchand - Sermanagny, FR
Allen M. Pfeffer - Windsor Locks CT, US
Vikram S. Shabde - Knoxville TN, US

Assignee:

ALSTOM Technology Ltd - Baden

International Classification:

F01K 13/02
F01K 25/06
F23J 15/02

US Classification:

60649, 60660, 110203

Abstract:

The present invention relates to a method of controlling a power plant, which power plant comprises: a boiler being adapted for combusting an organic fuel and for generating steam and a process gas comprising carbon dioxide; a steam system being; and a carbon dioxide capture system being adapted to remove at least a portion of the carbon dioxide from the process gas by contacting a carbon dioxide absorbent solution with the process gas, the method comprising: forwarding a portion of the steam produced by the power plant boiler to a regenerator of the carbon dioxide capture system; regenerating the absorbent solution in said regenerator through heating of said carbon dioxide absorbent solution by means of the forwarded steam; and automatically controlling the operation of the carbon capture system by means of at least one automatic controller. The invention also relates to a power plant including a carbon dioxide capture system.

US Patent:

20120125240, May 24, 2012

Filed:

Nov 22, 2010

Appl. No.:

12/951248

Inventors:

Nareshkumar B. Handagama - Knoxville TN, US
Glen D. Jukkola - Glastonbury CT, US
Frank M. Kluger - Schwaebisch Gmuend, DE
Rasesh R. Kotdawala - Koxville TN, US
Carl H. Neuschaefer - Enfield CT, US
Allen M. Pfeffer - Windsor Locks CT, US
Vikram Shabde - Knoxville TN, US

Assignee:

ALSTOM TECHNOLOGY LTD. - Baden

International Classification:

F23B 80/02

US Classification:

110206

Abstract:

A method is provided for managing an amount of energy utilized by a carbon dioxide capture system. The method includes providing a fuel and a feed stream to a combustion system. The feed stream includes oxygen and a portion of a flue gas stream generated upon combustion of the fuel. The method also includes subjecting the flue gas stream to a carbon dioxide capture system to remove carbon dioxide therefrom, measuring a concentration of oxygen present in the feed stream, and selectively adjusting an amount of the flue gas stream included in the feed stream based on the measured concentration of oxygen in the feed stream. The selective adjustment is performed such that the feed stream maintains an oxygen concentration in a range of between about 10% to 90% by volume and the carbon dioxide capture system operates at an energy load between 1.4 GJ/ton of carbon dioxide and 3.0 GJ/ton of carbon dioxide.

US Patent:

20120245737, Sep 27, 2012

Filed:

Feb 22, 2012

Appl. No.:

13/402073

Inventors:

ZHENG LIU - KNOXVILLE TN, US
NARESHKUMAR B. HANDAGAMA - KNOXVILLE TN, US
RASESH R. KOTDAWALA - KNOXVILLE TN, US
BARATH BABURAO - KNOXVILLE TN, US
VIKRAM S. SHABDE - PEARLAND TX, US

Assignee:

ALSTOM TECHNOLOGY LTD - BADEN

International Classification:

B01D 53/14
G05B 21/02

US Classification:

700271, 96234, 96242

Abstract:

Gas purification systems generally include an analyzing unit including a plurality of sensors and/or probes for continuously analyzing a solvent cyclic capacity in real time, the plurality of sensors and/or probes in fluid communication with rich amine and lean amine solution carrying conduits and the water wash conduits; and a system control unit configured to receive outputs from the analyzing unit for monitoring and controlling the solvent cyclic capacity in real time. Also disclosed are computer implemented methods for providing the real time control.

US Patent:

20120247103, Oct 4, 2012

Filed:

Feb 14, 2012

Appl. No.:

13/372960

Inventors:

Nareshkumar B. HANDAGAMA - Knoxville TN, US
Rasesh R. KOTDAWALA - Knoxville TN, US
Jacques MARCHAND - Sermamagny, FR
Vikram SHABDE - Pearland TX, US

Assignee:

ALSTOM TECHNOLOGY LTD. - Baden

International Classification:

F01K 13/02
F01B 21/00
F01K 11/02

US Classification:

60645, 60676, 60664, 60715

Abstract:

The present invention relates to systems and methods for controlling the flow of steam provided to a gas recovery unit based on changes to steam flow to and/or power generated by a power generation unit . The gas recovery unit may be part of a thermal power generation unit and may be an amine based COrecovery unit including two or more regenerator columns

US Patent:

20130099508, Apr 25, 2013

Filed:

Oct 19, 2011

Appl. No.:

13/276466

Inventors:

Nareshkumar B. Handagama - Knoxville TN, US
Rasesh R. Kotdawala - Knoxville TN, US
Vikram S. Shabde - Pearland TX, US

Assignee:

ALSTOM TECHNOLOGY LTD. - Baden

International Classification:

H02P 9/04
F22B 3/00
F01K 13/00

US Classification:

290 40 B, 60645, 122 6 R

Abstract:

A method of controlling a power system includes monitoring a load on an electrical grid, monitoring a power generation from one or more power producers connected to the electrical grid, wherein at least one of the one or more power producers is a power plant including a carbon dioxide capture system, and utilizing the carbon dioxide capture system of the one or more power producers as a operating reserve in response to an increase in the load on the electrical grid or a reduction in the power generation from one or more power producers connected to the electrical grid.