Method and apparatus for continuously feeding and pressurizing a solid material into a high pressure system
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C01B-003/36
C01B-003/00
출원번호
US-0271950
(2002-10-15)
등록번호
US-7303597
(2007-12-04)
발명자
/ 주소
Sprouse,Kenneth Michael
Matthews,David R
Stewart,Albert E
출원인 / 주소
Pratt & Whitney Rocketdyne, Inc.
대리인 / 주소
Carlson, Gaskey & Olds
인용정보
피인용 횟수 :
26인용 특허 :
15
초록▼
A system for substantially continuously providing a solid material, for example pulverized coal, to a pressurized container. The system provides the solid material to a first container of a first pressure elevated above an initial pressure of the solid material. Generally, a screw conveyor augmente
A system for substantially continuously providing a solid material, for example pulverized coal, to a pressurized container. The system provides the solid material to a first container of a first pressure elevated above an initial pressure of the solid material. Generally, a screw conveyor augmented with a jet port is used to move the material where the jet port provides a gas to provide a make-up volume of the solid material. The system also provides the material to a second high pressure container after the material has been formed into a slurry. Therefore, the solid material may be substantially continuously provided in a system to a high pressure container.
대표청구항▼
What is claimed is: 1. A method for continuously providing pressurized slurry of a solid material and a liquid to a high pressure system, the method comprising: providing a mechanical feeder to move the solid material; sonically jetting a fluid within the mechanical feeder against the solid materia
What is claimed is: 1. A method for continuously providing pressurized slurry of a solid material and a liquid to a high pressure system, the method comprising: providing a mechanical feeder to move the solid material; sonically jetting a fluid within the mechanical feeder against the solid material; and transporting an amount of the material being held at ambient pressure to a pressurized mixing container in connection with the mechanical feeder; mixing the material in the pressurized mixing container with the liquid to form a slurry; pumping the slurry to a high-pressure tank from the pressurized mixing container; removing a portion of the liquid from the slurry before the slurry enters the high-pressure tank. 2. The method of claim 1, further comprising: providing a first portion of the removed liquid to the mechanical feeder; and providing a second portion of the removed liquid to the high-pressure tank. 3. The method of claim 2, wherein providing the first portion of the removed liquid to the mechanical feeder includes: maintaining a high pressure of the liquid; forming a jet of the fluid within the mechanical feeder using the first portion of the removed liquid; and wherein forming the jet assists in providing for a lost volume of an initial volume of a gas trapped within the interstices of a solid material. 4. The method of claim 1, wherein transporting an amount of the solid material with the mechanical feeder includes: pressurizing the pressurized mixing container to at least five times the pressure of ambient; transporting in a substantially continuous manner the solid material as a solid particle from the ambient pressure to the pressurized mixing container; and providing for lost volume of the initial gas within the material. 5. The method of claim 1, wherein mixing the solid material in the pressurized mixing container with the liquid to form a slurry includes: providing the liquid in the pressurized mixing container; agitating the solid material with the liquid to form the slurry; and cooling the pressurized mixing container to control the pressure of the pressurized mixing container. 6. The method of claim 1, wherein removing a portion of the liquid from the slurry includes: increasing a temperature of the slurry above a temperature of the slurry in the pressurized mixing container; separating an excess portion of the liquid from the slurry; and wherein the volume of the slurry increases after its temperature is increased. 7. A method to substantially continuously provide a pressurized coal slurry to a pressurized holding tank, the method comprising: providing substantially continuously coal at an ambient pressure to a feeder having a feeder inlet; moving the coal from with the feeder to a slurry tank to hold a slurry of the coal and a liquid at a pressure of at least about 65 psig; and moving the slurry from the slurry tank to a high pressure tank, wherein the high pressure tank is at a pressure at least four times greater than that of the slurry tank. 8. The method of claim 7, further comprising: heating the slurry as the slurry travels from the slurry tank to the high pressure tank. 9. The method of claim 8, further comprising: mixing the coal and a slurry agent to form the coal slurry; moving the slurry agent through a heat exchanger such that a portion of the slurry agent is cooled and the slurry is warmed. 10. A method to substantially continuously provide a pressurized coal slurry to a pressurized holding tank, the method comprising: providing substantially continuously coal at an ambient pressure to a feeder having a feeder inlet; moving the coal from with the feeder to a slurry tank to hold a slurry of the coal and a liquid at a pressure of at least about 65 psig; and moving the slurry from the slurry tank to a high pressure tank, wherein the high pressure tank is at a pressure at least four times greater than that of the slurry tank; heating the slurry as the slurry travels from the slurry tank to the high pressure tank; mixing the coal and a slurry agent to form the coal slurry; moving the slurry agent through a heat exchanger such that a portion of the slurry agent is cooled and the slurry is warmed; removing an excess portion of the slurry agent after the slurry has passed through the heat exchanger; recycling the excess portion of the slurry agent; and maintaining a selected pressure. 11. A method to substantially continuously provide a pressurized coal slurry to a pressurized holding tank, the method comprising: providing substantially continuously coal at an ambient pressure to a feeder having a feeder inlet; moving the coal from with the feeder to a slurry tank to hold a slurry of the coal and a liquid at a pressure of at least about 65 psig; and moving the slurry from the slurry tank to a high pressure tank, wherein the high pressure tank is at a pressure at least four times greater than that of the slurry tank; heating the slurry as the slurry travels from the slurry tank to the high pressure tank; mixing the coal and a slurry agent to form the coal slurry; moving the slurry agent through a heat exchanger such that a portion of the slurry agent is cooled and the slurry is warmed; wherein mixing the coal and a slurry agent includes mixing carbon dioxide with the coal. 12. A method to substantially continuously provide a pressurized coal slurry to a pressurized holding tank, comprising: providing substantially continuously coal at an ambient pressure to a feeder having a feeder inlet; moving the coal from with the feeder to a slurry tank to hold a slurry of the coal and a liquid at a pressure of at least about 65 psig; and moving the slurry from the slurry tank to a high pressure tank, wherein the high pressure tank is at a pressure at least four times greater than that of the slurry tank, wherein the pressure of the slurry tank is about 65 psig to about 160 psig, and wherein the pressure of the high pressure tank is about 1100 psig to about 1500 psig. 13. A method to substantially continuously pressurize a solid material for assisting in feeding the material into a pressure reaction, the method comprising: supplying the solid material at a first pressure to a feeder from a container; feeding the solid material to a tank at a second pressure of at least about 65 psig; pumping the solid material from the tank to a high pressure tank through a line; heating the solid material as the material travels from the tank to the high pressure tank; wherein said second pressure is at least twice the level of said first pressure; wherein said feeder selectively and substantially continuously transports the solid material from said container to said tank; wherein a pressure within said high pressure tank is substantially greater than the pressure of said tank. 14. The method of claim 13, further comprising: providing a slurry agent to said tank; associating a slurry agent supply with said heat exchanger; forming a slurry at least in part by mixing a portion of said providing slurry agent said solid material; and wherein heating the solid material includes moving said formed slurry through a heat exchanger to transfer thermal energy from said slurry agent to said slurry to cool a portion of the slurry agent a first amount and to warm the slurry a second amount. 15. The method of claim 14, further comprising: substantially maintaining the pressure of the slurry and removing an excess portion of the slurry agent after the slurry has passed through said heat exchanger; and returning the excess portion of the slurry agent to said tank. 16. The method of claim 15, further comprising: providing a condenser; moving the excess portion of slurry agent through the condenser; condensing the slurry agent to a liquid; and supplying the condensed slurry agent to the tank. 17. The method of claim 7, further comprising: ejecting a jet of the fluid within the mechanical feeder at a velocity of at least mock one. 18. The method of claim 1, wherein the jetting includes ejecting the fluid at a speed of mock one or greater. 19. The method of claim 1, further comprising: jetting the fluid from a screw within the mechanical feeder. 20. The method of claim 19, further comprising: ejecting the fluid from a nozzle of a thread of the screw. 21. The method of claim 20, further comprising: transporting the fluid through an internal bore within the screw to the nozzle. 22. The method of claim 7, further comprising: moving the coal from the high pressure tank to a high pressure reactor.
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