PRADEEP S THACKER
Engineering in Houston, TX
License number
Massachusetts 34772
Issued Date
Aug 9, 1989
Expiration Date
Jun 30, 2008
Type
Mechanical Engineer
Address
Address
Houston, TX 77005
Professional information
Partial Oxidation Process With Production Of Power
US Patent:
5345756, Sep 13, 1994
Filed:
Oct 20, 1993
Appl. No.:
8/139367
Inventors:
Frederick C. Jahnke - Rye NY
Paul S. Wallace - Katy TX
Pradeep S. Thacker - Houston TX
Paul S. Wallace - Katy TX
Pradeep S. Thacker - Houston TX
Assignee:
Texaco Inc. - White Plains NY
International Classification:
F02G 300
US Classification:
60 3902
Abstract:
A highly efficient partial oxidation process with the production of power comprising the steps of producing fuel gas by the partial oxidation of hydrocarbonaceous fuel, cooling said fuel gas at high pressure by quenching in water to produce quenched fuel gas and by indirect heat exchange with BFW to maximize the production of IP and MP steam, cleaning said fuel gas, preheating scrubbing water comprising process condensate and make-up water by direct contact and direct heat exchange with clean fuel gas and using said preheated scrubbing water in the cleaning of said fuel gas, reducing the pressure of said cooled fuel gas stream prior to heating water for fuel gas saturation, cooling the process fuel gas stream in stages and condensing water for use as said scrubbing water, purifying the process fuel gas and saturating it with water, and burning said purified and saturated fuel gas in the combustor of a power-producing gas turbine along with saturated nitrogen to produce exhaust gas with a reduced NO. sub. x. In one embodiment, the hot exhaust gas from the gas turbine is passed through a HRSG to superheat the process steam. The superheated process steam is then used as part of the working fluid in an expansion turbine for the production of power.
Integration Of Solvent Deasphalting And Gasification
US Patent:
6241874, Jun 5, 2001
Filed:
Jul 27, 1999
Appl. No.:
9/361953
Inventors:
Paul S. Wallace - Katy TX
Kay A. Johnson - Missouri City TX
Pradeep S. Thacker - Houston TX
Janice L. Kasbaum - Seabrook TX
R. Walter Barkley - Houston TX
Jacquelyn Gayle Niccum - Houston TX
Kay A. Johnson - Missouri City TX
Pradeep S. Thacker - Houston TX
Janice L. Kasbaum - Seabrook TX
R. Walter Barkley - Houston TX
Jacquelyn Gayle Niccum - Houston TX
Assignee:
Texaco Inc. - White Plains NY
International Classification:
C10C 1120
US Classification:
208 45
Abstract:
The invention is the integration of a process of gasifying asphaltenes in a gasification zone by partial oxidation and the process of asphaltene extraction with a solvent. The integration allows low level heat from the gasification reaction to be utilized in the recovery of solvent that was used to extract asphaltenes from an asphaltene-containing hydrocarbon material. Asphaltenes are extracted from an asphaltene-containing hydrocarbon material by mixing a solvent in quantities sufficient to precipitate at least a fraction of the asphaltenes. The precipitated asphaltenes are then gasified in a gasification zone to synthesis gas. The gasification process is very exothermic. The low level heat in the synthesis gas, either directly, or via an intermediate step of low pressure steam, is used to remove and recover the solvent from the deasphalted hydrocarbon material and from the asphaltenes prior to gasification.
Partial Oxidation Power System
US Patent:
5319924, Jun 14, 1994
Filed:
Apr 27, 1993
Appl. No.:
8/052961
Inventors:
Paul S. Wallace - Katy TX
Pradeep S. Thacker - Houston TX
Pradeep S. Thacker - Houston TX
Assignee:
Texaco Inc. - White Plains NY
International Classification:
F02C 600
US Classification:
60 3902
Abstract:
Chlorine and sulfur-free fuel gas substantially comprising H. sub. 2 +CO for use as fuel in a gas turbine for the production of mechanical and electrical power and environmentally-safe flue gas is produced by the partial oxidation of liquid hydrocarbonaceous or solid carbonaceous fuels having chlorine and sulfur-containing impurities, cooling and splitting the raw fuel gas into two streams A and B, separately cooling raw fuel gas stream A by indirect heat exchange with dry N. sub. 2 gas while separately cooling the stream of raw fuel gas B by indirect heat exchange with the product stream of clean chlorine and sulfur-free fuel gas. HCl and particulate matter are then removed from raw fuel gas streams A and B; and, after combining raw fuel gas streams A and B together further cooling and removal of sulfur-containing gases takes place. By this process, attack on metal heat exchangers by the corrosive constituents in the raw fuel gas is prevented. In one embodiment, the clean chlorine and sulfur-free fuel gas is humidified and burned in the gas turbine to produce increased power and efficiency without polluting the atmosphere.
Method To Increase Net Plant Output Of A Derated Igcc Plant
US Patent:
2011016, Jul 7, 2011
Filed:
Jan 4, 2010
Appl. No.:
12/652026
Inventors:
Pradeep S. Thacker - Houston TX, US
Anindra Mazumdar - Houston TX, US
Anindra Mazumdar - Houston TX, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
F02C 3/28, F02C 6/00, F02C 7/00, F01K 23/10
US Classification:
60780, 60784, 60 39182, 60 395, 60 3915
Abstract:
In certain embodiments, a carbon capture integrated gasification combined cycle (IGCC) system includes a supplemental gas turbine engine configured to burn a high-hydrogen syngas to generate power only for an auxiliary load.
Gas Engine Drives For Gasification Plants
US Patent:
2011010, May 12, 2011
Filed:
Nov 6, 2009
Appl. No.:
12/613592
Inventors:
Raymond Douglas Steele - Houston TX, US
Anindra Mazumdar - Houston TX, US
Pradeep S. Thacker - Houston TX, US
Richard DePuy - Schenectady NY, US
Gary D. Miller - Houston TX, US
Anindra Mazumdar - Houston TX, US
Pradeep S. Thacker - Houston TX, US
Richard DePuy - Schenectady NY, US
Gary D. Miller - Houston TX, US
Assignee:
GENERAL ELECTRIC COMPANY - Schnectady NY
International Classification:
F02C 3/22, F02C 6/00
US Classification:
60 3912
Abstract:
The present application provides an integrated gasification combined cycle system. The integrated gasification combined cycle system may include a gas turbine engine, a syngas system for producing a syngas for the gas turbine engine and having a compressor therein, and a second gas engine in communication with the syngas system. The second gas engine dives the compressor via the syngas.
System For Integrating Acid Gas Removal And Carbon Capture
US Patent:
8419843, Apr 16, 2013
Filed:
May 18, 2010
Appl. No.:
12/782683
Inventors:
Arnaldo Frydman - Houston TX, US
Pradeep Stanley Thacker - Houston TX, US
Sachin Suhas Naphad - Katy TX, US
Pradeep Stanley Thacker - Houston TX, US
Sachin Suhas Naphad - Katy TX, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
B01D 53/14
US Classification:
96234, 95163, 95174, 95176, 95181, 95183, 95199, 95223, 95235, 95236
Abstract:
In one embodiment, a system includes a hydrogen sulfide (HS) absorber, a first flash tank, a flash gas treatment column, and a COabsorber. The system also includes a first fluid path extending sequentially through the HS absorber, the first flash tank, the flash gas treatment column, the HS absorber, and the COabsorber.
Fischer-Tropsch Tail-Gas Utilization
US Patent:
2003008, May 1, 2003
Filed:
Oct 23, 2001
Appl. No.:
10/001820
Inventors:
Lalit Shah - Sugar Land TX, US
Pradeep Thacker - Houston TX, US
Manual Quintana - Sugar Land TX, US
Rae Song - Houston TX, US
Pradeep Thacker - Houston TX, US
Manual Quintana - Sugar Land TX, US
Rae Song - Houston TX, US
International Classification:
C07C027/00, C07C027/06
US Classification:
518/702000, 518/704000
Abstract:
The present invention deals with the handling of the tail-gas product from an integrated gasification reactor/Fischer-Tropsch reactor unit. The Fischer-Tropsch tail-gas is either recycled back for feed to the gasification unit to be converted into syngas, is processed in a COremoval unit and recycled back to the feed of the Fischer-Tropsch reactor to improve the liquid product yield, or is sent to a power production unit for the generation of electric power.
Method And Apparatus To Produce Synthetic Gas
US Patent:
8591631, Nov 26, 2013
Filed:
Jul 31, 2007
Appl. No.:
11/831639
Inventors:
Sachin Naphad - Houston TX, US
Pradeep Thacker - Houston TX, US
Pradeep Thacker - Houston TX, US
Assignee:
General Electric Company - Schenectady NY
International Classification:
B01D 47/00
US Classification:
95160, 95235, 95236, 95191, 95192, 95234
Abstract:
A method of assembling an acid gas component reduction system includes coupling at least one acid removal system in flow communication with at least one first synthetic gas (syngas) stream with at least one acid gas component having a first acid gas component concentration. The method also includes coupling at least one integral absorber in flow communication with the at least one acid removal system. The method further includes configuring the at least one integral absorber such that substantially continuous service of the at least one integral absorber facilitates producing a second syngas stream having a second acid gas component concentration that is less than the first acid gas component concentration.