US6162266A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Floating pressure gasifier feed injector cooling water system
Assignee: GE Energy USA LLC
•
Filing: 1998-06-05
•
Granted: 2000-12-19
•
Expires: 2018-06-05
Abstract
Abstract An apparatus and a process for cooling a feed injector of a gasification reactor that produces synthesis gas is described. Cooling fluid is injected into a channel in the feed injector adapted for circulating the fluid. The injection pressure is maintained near or above the gasification reactor pressure. The fluid is withdrawn from the channel through an outlet at an outlet pressure between about 515 KPa above to about 1030 KPa below the gasification reactor pressure. The fluid is cooled, degassed, and injected back into the channel in the feed injector. The pressure on the cooling system is variable and tracks the gasification reactor pressure.
Inventors
- 👤 Paul S. Wallace
- 👤 Kay A. Johnson
- 👤 DeLome D. Fair
- 👤 Fred C. Jahnke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 23:30
CPC Classifications
B; B01; B01J; B01J19/00; B01J19/0006; B01J19/0013; C; C10; C10J; C10J3/00; C10J3/46; C10J3/48; B01J4/00; B01J4/001; C10J3/02; C10J3/20; C10J3/30; C10J3/50; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00054; B01J2219/00056; B01J2219/00065; B01J2219/00074; B01J2219/00087; B01J2219/0009; B01J2219/00103; B01J2219/00245; B01J2219/00256; B01J2219/00268; C10J2200/00; C10J2200/09; C10J2200/15; C10J2200/152; Y; Y02; Y02P; Y02P20/00; Y02P20/141
Claims Analysis
Total Claims: 30
Claim 1
Independent Claim
102 words
A process for cooling a feed injector of a gasification reactor that produces synthesis gas, wherein said feed injector has a channel capable of circulating cooling fluid, said process comprising a) injecting cooling fluid through the channel at a pressure near or above that of the gasification reactor and sufficient to provide a cooling fluid injection rate sufficient to cool the feed injector; and b) withdrawing fluid from the channel through an outlet at an outlet pressure below the gasification reactor pressure but not less than a calculated pressure, where said calculated pressure is the gasification reactor pressure minus about 1030 Kpa.
Claim 2
Dependent Claim
102 words
A process for cooling a feed injector of a gasification reactor that produces synthesis gas, wherein said feed injector has a channel capable of circulating cooling fluid, said process comprising a) injecting cooling fluid through the channel at a pressure near or above that of the gasification reactor and sufficient to provide a cooling fluid injection rate sufficient to cool the feed injector; and b) withdrawing fluid from the channel through an outlet at an outlet pressure below the gasification reactor pressure but not less than a calculated pressure, where said calculated pressure is the gasification reactor pressure minus about 1030 Kpa.
Claim 3
Dependent Claim
23 words
The process of claim 1 further comprising the step of cooling the withdrawn fluid and then re-injecting the cooled fluid through the channel.
Claim 4
Dependent Claim
18 words
The process of claim 2 further comprising the step of degassing the withdrawn fluid before re-injecting the fluid.
Claim 5
Dependent Claim
26 words
The process of claim 3 which further comprises detecting one or more of carbon monoxide, carbon dioxide, and hydrogen, during the degassing of the withdrawn fluid.
Claim 6
Dependent Claim
18 words
The process of claim 3 which further comprises detecting carbon monoxide during the degassing of the withdrawn fluid.
Claim 7
Dependent Claim
30 words
The process of claim 3 wherein the pressure on the fluid during the cooling step and the degassing step is from about 50% to about 120% of the outlet pressure.
Claim 8
Dependent Claim
30 words
The process of claim 3 wherein the pressure on the fluid during the cooling step and the degassing step is from about 80% to about 100% of the outlet pressure.
Claim 9
Dependent Claim
30 words
The process of claim 3 wherein the pressure on the fluid during the cooling step and the degassing step is from about 95% to about 100% of the outlet pressure.
Claim 10
Dependent Claim
13 words
The process of claim 3 wherein the process further comprises detecting fluid loss.
Claim 11
Dependent Claim
15 words
The process of claim 3 wherein the degassing is performed after cooling the withdrawn fluid.
Claim 12
Dependent Claim
17 words
The process of claim 10 further comprising contacting the withdrawn fluid with an inert gas during degassing.
Claim 13
Dependent Claim
40 words
The process of claim 1 wherein the injection pressure and outlet pressure are regulated such that there will be at most a 10% drop in the injection rate of the fluid in the event of a leak in a channel.
Claim 14
Dependent Claim
18 words
The process of claim 1 wherein the fluid is injected in two or more channels arranged in parallel.
Claim 15
Dependent Claim
35 words
The process of claim 1 wherein the outlet pressure is below the gasification reactor pressure but not less than a calculated pressure, where said calculated pressure is the gasification reactor pressure minus about 690 Kpa.
Claim 16
Dependent Claim
24 words
The process of claim 1 wherein the outlet pressure is between about 345 KPa below and about 690 KPa below the gasification reactor pressure.
Claim 17
Dependent Claim
10 words
The process of claim 1 wherein the fluid comprises water.
Claim 18
Dependent Claim
11 words
The process of claim 1 wherein the fluid comprises a hydrocarbon.
Claim 19
Dependent Claim
151 words
A process for cooling a feed injector of a gasification reactor that produces synthesis gas, wherein said feed injector has a channel capable of circulating cooling fluid, said process comprising a) infecting cooling fluid through the channel at a pressure near or above that of the gasification reactor and sufficient to provide a cooling fluid injection rate sufficient to cool the feed injector; b) withdrawing fluid from the channel through an outlet at an outlet pressure between about 515 KPa above to about 1030 KPa below the gasification reactor pressure, such that upon development of a leak in the channel the rate of leakage of fluid into the gasifier and the rate of leakage of gas will be minimized; c) means for detecting the development of a leak in the channel and, wherein the outlet pressure is between about 345 KPa below and about 690 KPa below the gasification reactor pressure.
Claim 20
Dependent Claim
151 words
A process for cooling a feed injector of a gasification reactor that produces synthesis gas, wherein said feed injector has a channel capable of circulating cooling fluid, said process comprising a) infecting cooling fluid through the channel at a pressure near or above that of the gasification reactor and sufficient to provide a cooling fluid injection rate sufficient to cool the feed injector; b) withdrawing fluid from the channel through an outlet at an outlet pressure between about 515 KPa above to about 1030 KPa below the gasification reactor pressure, such that upon development of a leak in the channel the rate of leakage of fluid into the gasifier and the rate of leakage of gas will be minimized; c) means for detecting the development of a leak in the channel and, wherein the outlet pressure is between about 345 KPa below and about 690 KPa below the gasification reactor pressure.
Claim 21
Independent Claim
105 words
An apparatus for cooling a feed injector of a gasification reactor that produces synthesis gas comprising (a) a feed injector that has a channel capable of circulating cooling fluid, (b) cooling fluid, (c) a means for injecting cooling fluid through the channel at a pressure above that of the gasification reactor, (d) an outlet means for withdrawing fluid from the channel, (e) means for maintaining the outlet at a pressure below the gasification reactor pressure but not less than a calculated pressure, where said calculated pressure is the gasification reactor pressure minus about 1030 Kpa, and (f) a means for determining the ggasification reactor pressure.
Claim 22
Independent Claim
105 words
An apparatus for cooling a feed injector of a gasification reactor that produces synthesis gas comprising (a) a feed injector that has a channel capable of circulating cooling fluid, (b) cooling fluid, (c) a means for injecting cooling fluid through the channel at a pressure above that of the gasification reactor, (d) an outlet means for withdrawing fluid from the channel, (e) means for maintaining the outlet at a pressure below the gasification reactor pressure but not less than a calculated pressure, where said calculated pressure is the gasification reactor pressure minus about 1030 Kpa, and (f) a means for determining the ggasification reactor pressure.
Claim 23
Dependent Claim
22 words
The apparatus of claim 19 further comprising means to cool the withdrawn fluid and means to re-inject the fluid through the channel.
Claim 24
Dependent Claim
17 words
The apparatus of claim 20 further comprising means to degas the withdrawn fluid before re-injecting the fluid.
Claim 25
Dependent Claim
12 words
The apparatus of claim 21 further comprising means to detect synthesis gas.
Claim 26
Dependent Claim
12 words
The apparatus of claim 20 further comprising means to detect water loss.
Claim 27
Dependent Claim
34 words
The apparatus of claim 19 wherein the means of maintaining the outlet pressure is such that the outlet pressure is between about 345 KPa below and about 690 KPa below the gasification reactor pressure.
Claim 28
Independent Claim
276 words
An apparatus for cooling a feed injector of a gasification reactor that produces synthesis gas comprising (a) a feed injector that has a channel capable of circulating cooling fluid, (b) a cooling fluid, (c) a fluid injection pump, (d) a heat exchanger, (e) a gas liquid separator, (f) a carbon monoxide gas detector, (g) a water level sensor, (h) a means of adding fluid or gas to control the outlet pressure, wherein said means must control the outlet pressure so that the pressure in the channel is below the gasification reactor pressure, and (i) connecting piping, wherein all components of the system are capable of operation at the gasification reactor pressure or above, and wherein the components are arranged such that cooling fluid enters the fluid injection pump and comes out of the fluid injection pump at a pressure near to or higher than the gasification reactor pressure, and then the cooling fluid enters the channel in the feed injector circulates through the channel, and then the cooling fluid exits the feed injector channel and enters a heat exchanger, and then the cooling fluid passes through the gas liquid separator before again entering the fluid injection pump, and wherein the gas detector is mounted on the gas liquid separator to detect carbon monoxide in the gas section, and wherein the water level sensor mounted to measure the water level in the gas liquid separator, and wherein the means of adding fluid or gas to maintain an outlet at a pressure no lower than a calculated pressure, where said calculated pressure is the gasification reactor pressure minus about 1030 KPa is located on the gas liquid separator.
Claim 29
Independent Claim
276 words
An apparatus for cooling a feed injector of a gasification reactor that produces synthesis gas comprising (a) a feed injector that has a channel capable of circulating cooling fluid, (b) a cooling fluid, (c) a fluid injection pump, (d) a heat exchanger, (e) a gas liquid separator, (f) a carbon monoxide gas detector, (g) a water level sensor, (h) a means of adding fluid or gas to control the outlet pressure, wherein said means must control the outlet pressure so that the pressure in the channel is below the gasification reactor pressure, and (i) connecting piping, wherein all components of the system are capable of operation at the gasification reactor pressure or above, and wherein the components are arranged such that cooling fluid enters the fluid injection pump and comes out of the fluid injection pump at a pressure near to or higher than the gasification reactor pressure, and then the cooling fluid enters the channel in the feed injector circulates through the channel, and then the cooling fluid exits the feed injector channel and enters a heat exchanger, and then the cooling fluid passes through the gas liquid separator before again entering the fluid injection pump, and wherein the gas detector is mounted on the gas liquid separator to detect carbon monoxide in the gas section, and wherein the water level sensor mounted to measure the water level in the gas liquid separator, and wherein the means of adding fluid or gas to maintain an outlet at a pressure no lower than a calculated pressure, where said calculated pressure is the gasification reactor pressure minus about 1030 KPa is located on the gas liquid separator.
Claim 30
Dependent Claim
34 words
The apparatus of claim 25 wherein the means to add fluid or gas is such that the outlet pressure is between about 345 KPa below and about 690 KPa below the gasification reactor pressure.
References Cited (Backward Citations)
US1138549A
Cited
US2794681A
Cited
US2928460A
Cited
US2963353A
Cited
US3059913A
Cited
US3255966A
Cited
DE2038597A1
Cited
US3833056A
Cited
US4328008A
Cited
US4328006A
Cited
US4338099A
Cited
US4364744A
Cited
US4371378A
Cited
US4752303A
Cited
US4443228A
Cited
EP0101216A2
Cited
US4445444A
Cited
US4525175A
Cited
US4666463A
Cited
US4743194A
Cited
EP0286226A1
Cited
US4865542A
Cited
US4887962A
Cited
US5348568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2003-12-19 | 2004-06-19 | 2004-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-12-19 | 2008-06-19 | 2008-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-12-19 | 2012-06-19 | 2012-12-19 | $7700.00 | Window Closed / Lapsed |