Turbine system with exhaust gas recirculation, separation and extraction

Patent metadata

Field	Value
Publication number	US-2016222884-A1
Application number	US-201615014981-A
Country	US
Kind code	A1
Filing date	Feb 3, 2016
Priority date	Feb 4, 2015
Publication date	Aug 4, 2016
Grant date	—

Abstract

A system includes a turbine combustor having a first volume configured to receive a combustion fluid and to direct the combustion fluid into a combustion chamber. The turbine combustor includes a second volume configured to receive a first flow of an exhaust gas and to direct the first flow of the exhaust gas into the combustion chamber. The turbine combustor also includes a third volume disposed axially downstream from the first volume and circumferentially about the second volume. The third volume is configured to receive a second flow of the exhaust gas and to direct the second flow of the exhaust gas out of the turbine combustor via an extraction outlet, and the third volume is isolated from the first volume and from the second volume.

First claim

1 . A system, comprising:
a turbine combustor, comprising:
a first volume configured to receive a combustion fluid and to direct the combustion fluid into a combustion chamber;
a second volume configured to receive a first flow of an exhaust gas and to direct the first flow of the exhaust gas into the combustion chamber; and
a third volume disposed axially downstream from the first volume and circumferentially about at least a portion of the second volume, wherein the third volume is configured to receive a second flow of the exhaust gas and to direct the second flow of the exhaust gas out of the turbine combustor via an extraction outlet, and the third volume is isolated from each of the first volume and from the second volume.

2 . The system of claim 1 , comprising:
a housing; a flow sleeve disposed within the housing, wherein the third volume is defined between an aft portion of the flow sleeve and the housing; and a flange extending radially outward from the flow sleeve to the housing, wherein the flange isolates the third volume from the first volume.

3 . The system of claim 1 , wherein the extraction outlet is positioned between a transition piece and a head end of the combustor.

4 . The system of claim 1 , comprising:
a housing; a liner disposed within the housing; a flow sleeve disposed within the housing and radially outward of the liner, wherein the second volume is defined between the liner and the flow sleeve, the third volume is defined between the flow sleeve and the housing, and an aft portion of the flow sleeve isolates the first volume from the second volume.

5 . The system of claim 1 , comprising an exhaust gas compressor configured to compress and to route the exhaust gas to the turbine combustor.

6 . The system of claim 1 , comprising a gas turbine engine having the turbine combustor, wherein the gas turbine engine is a stoichiometric exhaust gas recirculation gas turbine engine.

7 . The system of claim 1 , comprising an exhaust gas extraction system coupled to the extraction conduit, and a hydrocarbon production system coupled to the exhaust gas extraction system.

8 . The system of claim 1 , wherein the first volume is disposed within a head end of the turbine combustor.

9 . The system of claim 8 , comprising:
a liner defining a combustion chamber of the turbine combustor; a flow sleeve disposed radially outward of the liner; and a cap positioned proximate to the head end of the turbine combustor and coupled to a forward end of the flow sleeve to form a seal; wherein the second volume is defined between the liner and flow sleeve, and the seal is configured to block the first flow of the second fluid from flowing into the head end of the turbine combustor.

10 . The system of claim 9 , wherein a forward portion of the flow sleeve comprises one or more openings configured to enable the first fluid to flow radially inward through the flow sleeve and toward the combustion chamber.

11 . The system of claim 1 , wherein a first cross-sectional flow area of the second volume is less than a second cross-sectional flow area of the third volume.

12 . A system, comprising:
a turbine combustor, comprising:
a housing;
a liner defining a combustion chamber;
a flow sleeve disposed about the liner;
a first volume disposed in a head end of the combustion chamber, wherein the first volume is configured to receive a combustion fluid and to provide the combustion fluid to the combustion chamber;
a second volume disposed downstream of the first volume and defined between the flow sleeve and the housing, wherein the second volume is configured to receive a first flow of recirculated combustion products and to direct the first flow of recirculated combustion products out of the combustor via an extraction conduit; and
a flange extending between the flow sleeve and the housing, wherein the flange is configured to block flow of the combustion fluid into the second volume and to block flow of the first flow of recirculated combustion products into the first volume.

13 . The system of claim 12 , comprising a third volume defined between the liner and the flow sleeve, wherein the third volume is configured to receive a second flow of recirculated combustion products and to direct the second flow of recirculated combustion products into the combustion chamber, and the flow sleeve isolates the second volume from the third volume.

14 . The system of claim 13 , comprising a transition piece having an impingement sleeve, wherein the impingement sleeve enables the second flow of recirculated combustion products to flow into the third volume.

15 . The system of claim 12 , wherein the extraction conduit is positioned between a transition piece and a head end of the turbine combustor.

16 . The system of claim 12 , comprising an exhaust gas compressor configured to compress and to route the recirculated combustion products to the turbine combustor.

17 . The system of claim 12 , comprising an exhaust gas extraction system coupled to the extraction conduit, and a hydrocarbon production system coupled to the exhaust gas extraction system.

18 . The system of claim 12 , comprising a gas turbine engine having the turbine combustor, wherein the gas turbine engine is a stoichiometric exhaust gas recirculation gas turbine engine.

19 . A method, comprising:
combusting an oxidant and a fuel in a combustion chamber of a turbine combustor to generate combustion products; compressing at least some of the combustion products generated by the combustor to generate compressed combustion products; cooling a liner of the turbine combustor using a first flow of the compressed combustion products; and isolating a second flow of the compressed combustion products within the turbine combustor from the oxidant, the fuel, and the first flow of the compressed combustion products.

20 . The method of claim 19 , wherein combusting the oxidant and the fuel comprises operating the turbine combustor in a stoichiometric combustion mode of operation.

21 . The method of claim 19 , comprising directing the first flow of the compressed combustion products into the combustion chamber.

22 . The method of claim 19 , comprising extracting the second flow of the compressed combustion products out of the turbine combustor.

23 . The method of claim 22 , wherein extracting the second flow of the compressed combustion products out of the combustor occurs between a transition piece and a head end of the turbine combustor.

24 . The method of claim 19 , wherein the first flow of the compressed combustion products comprises approximately 50 percent of the compressed combustion products output by the compressor.

25 . The method of claim 19 , wherein the compressed combustion products output by the compressor comprise less than 5 percent by volume of oxygen.

Assignees

• Gen Electric
• Exxonmobil Upstream Res Co

Inventors

• Allen Jonathan Kay
• Borchert Bradford David
• Trout Jesse Edwin
• Slobodyanskiy Ilya Aleksandrovich
• Valeev Almaz
• Sidko Igor Petrovich
• Roberts Matthew Eugene
• Ginesin Leonid Yulk'Evich

Classifications

• F02C3/34 Primary

  with recycling of part of the working fluid, i.e. semi-closed cycles with combustion products in the closed part of the cycle · CPC title

• F23R3/16

  with devices inside the flame tube or the combustion chamber to influence the air or gas flow · CPC title

• F23C2900/09001

  Cooling flue gas before returning them to flame or combustion chamber · CPC title

• F23C9/08

  for reducing temperature in combustion chamber, e.g. for protecting walls of combustion chamber · CPC title

• F05D2260/61

  Removal of CO2 · CPC title