System and method for the preparation of coal water slurries
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-007/00
C01B-003/36
C10L-001/32
출원번호
US-0756364
(2013-01-31)
등록번호
US-9404055
(2016-08-02)
발명자
/ 주소
Ayala, Raul Eduardo
Oppenheim, Judith Pauline
출원인 / 주소
General Electric Company
대리인 / 주소
Fletcher Yoder, P.C.
인용정보
피인용 횟수 :
0인용 특허 :
35
초록▼
Disclosed embodiments include a feedstock preparation system that includes a first slurry preparation system that may receive a first portion of a solid fuel to generate a first fuel slurry using the first portion of the solid fuel and a liquid and second slurry preparation system separate from the
Disclosed embodiments include a feedstock preparation system that includes a first slurry preparation system that may receive a first portion of a solid fuel to generate a first fuel slurry using the first portion of the solid fuel and a liquid and second slurry preparation system separate from the first slurry preparation system that may receive a second portion of the solid fuel and the first fuel slurry. The second slurry preparation system may produce a second fuel slurry using the second portion of the solid fuel and the first fuel slurry. The first fuel slurry has a first particle size distribution and the second fuel slurry has a second particle size distribution, and the first and second particle size distributions are different.
대표청구항▼
1. A feedstock preparation system, comprising: a first slurry preparation system comprising a first grinder and configured to receive a first portion of a solid fuel and to generate a first fuel slurry using the first portion of the solid fuel and a liquid;a first fuel path extending between the fir
1. A feedstock preparation system, comprising: a first slurry preparation system comprising a first grinder and configured to receive a first portion of a solid fuel and to generate a first fuel slurry using the first portion of the solid fuel and a liquid;a first fuel path extending between the first slurry preparation system and a fuel source, wherein the first fuel path is configured to direct the first portion of the solid fuel to the first slurry preparation system; anda second slurry preparation system separate from the first slurry preparation system and comprising a second grinder and a feed tank fluidly coupled to the second grinder, wherein the second slurry preparation system is configured to receive a second portion of the solid fuel and a first portion of the first fuel slurry and to produce a first intermediate fuel slurry using the second portion of the solid fuel and the first portion of the first fuel slurry, and to produce a second intermediate fuel slurry from the first intermediate fuel slurry using the second grinder;a second fuel path separate from the first fuel path and extending between the second slurry preparation system and the fuel source, wherein the second fuel path is configured to direct the second portion of the solid fuel to the feed tank, and wherein the feed tank is configured to mix the second portion of the solid fuel and the first portion of the fuel slurry to produce the first intermediate slurry; andwherein the feedstock preparation system is configured to produce a second fuel slurry from the second intermediate fuel slurry and the first fuel slurry, and wherein the first fuel slurry has a first particle size distribution and the second fuel slurry has a second particle size distribution, and the first and second particle size distributions are different. 2. The feedstock preparation system of claim 1, wherein the second grinder comprises a wet mill configured to grind the first intermediate fuel slurry to produce the second intermediate fuel slurry. 3. The feedstock preparation system of claim 2, comprising a transport device disposed downstream from and fluidly coupled to the first and second slurry preparation systems, wherein the transport device is configured to receive the second intermediate fuel slurry and a second portion of the first fuel slurry and to mix the second intermediate fuel slurry and the second portion of the first fuel slurry to produce the second fuel slurry. 4. The feedstock preparation system of claim 3, wherein the transport device comprises an auger, a conveyer, an impeller, or combination thereof. 5. The feedstock preparation system of claim 1, wherein the first and second slurry preparation systems are configured to introduce a slurry additive to control the viscosity of the first fuel slurry, the first intermediate fuel slurry, or the second intermediate fuel slurry. 6. The feedstock preparation system of claim 1, comprising a storage unit fluidly coupled to a transport device and disposed upstream of a gasifier, wherein the storage unit is configured to receive the second fuel slurry from the transport device. 7. The feedstock preparation system of claim 6, wherein the storage unit comprises a pressurized vessel. 8. The feedstock preparation system of claim 6, wherein the storage unit is configured to supply the second fuel slurry to the gasifier, and wherein the gasifier is configured to produce a syngas at least using the second fuel slurry. 9. The feedstock preparation system of claim 1, comprising a controller configured to control compositional parameters of the second fuel slurry. 10. The system of claim 9, wherein the controller is communicatively coupled to the first slurry preparation system, the second slurry preparation system, and a gasifier, wherein the controller is configured to adjust an amount or a flow of fuel slurry components into the first slurry preparation system, the second slurry preparation system, or the gasifier. 11. The system of claim 1, wherein the first grinder is configured to grind the first portion of the solid fuel such that the first fuel slurry has the first particle size distribution and the second grinder is configured to grind the second portion of the solid fuel and the first portion of the first fuel slurry such that the second fuel slurry has the second particle size distribution. 12. A method comprising: providing a first portion of a solid fuel to a first slurry preparation system via a first fuel path extending between the first slurry preparation system and a fuel source to generate a first fuel slurry, wherein the first slurry comprises ground particles of the solid fuel, and wherein the first slurry preparation system comprises a first grinder configured to generate the ground particles of the solid fuel;providing a second portion of the solid fuel and a first portion of the first fuel slurry to a second slurry preparation system via a second fuel path extending between the fuel source and the second slurry preparation system, the first and second fuel paths being separate from one another, wherein the second fuel path is configured to direct the second portion of the solid fuel to a feed tank, and wherein the feed tank is configured to mix the second portion of the solid fuel and the first portion of the first fuel slurry to produce an intermediate slurry;grinding the mixture of the second portion of the solid fuel and the first portion of the first fuel slurry in a second grinder disposed in the second slurry preparation system and fluidly coupled to the feed tank to produce a second fuel slurry, wherein the second fuel slurry has a smaller particle size distribution of the solid fuel compared to the first fuel slurry; andmixing a second portion of the first fuel slurry and the second fuel slurry to produce a third fuel slurry. 13. The method of claim 12, wherein the second grinder comprises a wet milling unit. 14. The method of claim 12, comprising transporting the second fuel slurry with a device, wherein the device is configured to transport solids from the second slurry preparation system to a blending unit, wherein the device configured to transport solids comprises the blending unit. 15. The method of claim 14, comprising mixing the second fuel slurry with a portion of the first fuel slurry in the blending unit to produce the third fuel slurry. 16. The method of claim 15, comprising transporting the third fuel slurry to a storage unit with the device. 17. The method of claim 16, comprising supplying the third fuel slurry to a gasifier and gasifying the solid fuel in the third fuel slurry to produce a syngas.
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