Apparatus and process for three-phase reaction
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-008/00
B01J-008/22
B01D-045/08
C10G-002/00
C10G-045/58
C10G-047/00
B01J-008/08
B01J-019/00
B01J-019/24
C07C-001/00
출원번호
US-0378565
(2010-06-22)
등록번호
US-8980201
(2015-03-17)
우선권정보
GB-0911147.7 (2009-06-26)
국제출원번호
PCT/GB2010/001223
(2010-06-22)
§371/§102 date
20120301
(20120301)
국제공개번호
WO2010/149961
(2010-12-29)
발명자
/ 주소
Myrstad, Trond
Schanke, Dag
Søraker, Pål
Wagner, Matthias
Ruppel, Manfred
출원인 / 주소
GTL.FI AG
대리인 / 주소
Patterson Thuente Pedersen, P.A.
인용정보
피인용 횟수 :
0인용 특허 :
9
초록▼
A system and process for removing catalyst fines from a gas stream overhead the slurry in a Fischer-Tropsch slurry bubble column reactor. The gas phase at the top of the slurry bubble column reactor containing small amounts of entrained liquid and catalyst particles. The unreacted gases are passed t
A system and process for removing catalyst fines from a gas stream overhead the slurry in a Fischer-Tropsch slurry bubble column reactor. The gas phase at the top of the slurry bubble column reactor containing small amounts of entrained liquid and catalyst particles. The unreacted gases are passed through a demister, which removes larger droplets and catalyst particles. Smaller droplets and catalyst fines are conveyed to a secondary gas cleaner, such as a cyclone, whereby substantially all remaining particles are removed from the gas phase. A particle-containing liquid produced in the secondary gas cleaner can be further subjected to a filtrate cleaning unit to filter out fine catalyst particles and produce a substantially particle-free liquid product stream and a slurry stream of liquid product containing catalyst particles.
대표청구항▼
1. An apparatus for conducting a three-phase reaction, in which gaseous reactants are reacted in the presence of a finely divided solid catalyst in suspension in a liquid comprising, at least in part, one or more reaction products of the gaseous reactants, thereby forming a slurry, the apparatus com
1. An apparatus for conducting a three-phase reaction, in which gaseous reactants are reacted in the presence of a finely divided solid catalyst in suspension in a liquid comprising, at least in part, one or more reaction products of the gaseous reactants, thereby forming a slurry, the apparatus comprising: a reactor vessel having a reactant inlet and configured to accommodate the slurry and a gas space above the slurry during normal operational use;a filtration system having a primary filter configured to be in fluid communication with the slurry during normal operational use, and wherein the primary filter has an outlet for primary filtrate that has been subjected to primary filtration by the primary filter;a gas demister configured to remove a source of entrained material from a gas source from the gas space above the slurry and produce a demister gas stream; anda secondary gas cleaner in fluid communication with the gas demister and configured to receive the demisted gas stream, whereby the secondary gas cleaner is capable of further removal of a source of relatively finer entrained material from the demisted gas stream,wherein a cross-sectional area of the demister is smaller than a cross-sectional area of the reactor above the slurry level, whereby a velocity of the gas source is increased as it passes through the demister during normal operational use. 2. The apparatus of claim 1, wherein the gas demister is located within the reactor vessel and configured to be located within the gas space. 3. The apparatus of claim 1, wherein the gas demister is a vane pack mist eliminator. 4. The apparatus of claim 3, wherein the vane pack mist eliminator has a series of corrugated plates arranged in a generally vertical configuration, whereby the gas source flows in a vertically upward direction through the vane pack mist eliminator. 5. The apparatus of claim 1, wherein the gas demister is configured to return the entrained material removed by the gas demister to the slurry. 6. The apparatus of claim 1, wherein the secondary gas cleaner is a cyclone. 7. The apparatus of claim 6, wherein the secondary gas cleaner has a first outlet for substantially particle-free gaseous product and a second outlet for particle-containing liquid product. 8. The apparatus of claim 1, wherein the primary filter is located within the reactor vessel. 9. The apparatus of claim 8, wherein the primary filter is located such that it is at least partially immersed in the slurry during normal operational use. 10. The apparatus of claim 1, further comprising a filtrate cleaning unit in fluid communication with the primary filter and configured to receive the primary filtrate from the primary filter. 11. The apparatus of claim 10, wherein the filtrate cleaning unit is a secondary filter unit, whereby the primary filter unit has a relatively coarse filter in comparison to the secondary filter unit having a relatively fine filter. 12. The apparatus of claim 10, wherein the filtrate cleaning unit is located outside the reactor vessel. 13. The apparatus of claim 10, wherein the filtrate cleaning unit has a product outlet for substantially particle-free liquid product and a slurry outlet for liquid product containing catalyst particles. 14. A process for conducting a three-phase reaction in which gaseous reactants are reacted in the presence of a finely divided solid catalyst in suspension in a liquid comprising, at least in part, the reaction product of the gaseous reactants thereby forming a slurry, the process comprising the steps of: introducing the gaseous reactants into the slurry in a reactor;subjecting the slurry to a primary filtration in a primary filter to produce a primary filtrate stream;subjecting gases located above the slurry to a demister wherein at least a first portion of an entrained material is removed from the gas to produce a demisted gas stream; andsubjecting the demisted gas stream to a secondary gas cleaner wherein at least a second portion of the entrained material is removed from the demisted gas stream,wherein a velocity of the gas is increased as it passes from the reactor through the demister. 15. The process of claim 14, further comprising the step of returning the first portion of the entrained material removed by the gas demister to the slurry. 16. The process of claim 14, wherein the step of subjecting the demisted gas stream to the secondary gas cleaner produces a substantially particle-free gaseous product stream and a particle-containing liquid product stream. 17. The process of claim 14, further comprising the step of filtrate cleaning the primary filtrate stream with a filtrate cleaning unit to produce a substantially particle-free liquid product stream and a slurry stream of liquid product containing catalyst particles. 18. The process of claim 17, further comprising the step of removing fine catalyst particles from the filtrate cleaning unit that are filtered out in the filtrate cleaning step. 19. The process of claims 17, further comprising the step of conveying a particle-containing liquid product stream to the filtrate cleaning unit, wherein the particle-containing liquid product stream is produced by the step of subjecting the demisted gas stream to the secondary gas cleaner. 20. The process of claim 14, wherein the reaction is a Fischer-Tropsch synthesis reaction, wherein the reactor is a slurry bubble column reactor, wherein H2 and CO are supplied to the slurry in the reactor, wherein the slurry comprises the catalyst in suspension in the liquid including the reaction products of the H2 and CO, and wherein the catalyst is maintained in suspension in the slurry at least partly by the motion of the gas supplied to the slurry. 21. The process of claim 20, wherein the reaction temperature is in the range of 190-250° C. and the reaction pressure is in the range of 10-60 bar. 22. The process of claim 20, wherein an H2/CO ratio of the gases supplied to the Fischer-Tropsch synthesis reactor is in the range of 1.1 to 2.2. 23. The process of claim 20, wherein a superficial gas velocity in the reactor is in the range of 5 to 60 cm/s. 24. The process of claim 20, further comprising a post-processing product of the Fischer-Tropsch synthesis reaction. 25. The process of claim 24, wherein the post-processing is chosen from de-waxing, hydro-isomerisation, hydro-cracking and combinations thereof. 26. A process for conducting a three-phase reaction in which gaseous reactants are reacted in the presence of a finely divided solid catalyst in suspension in a liquid comprising, at least in part, the reaction product of the gaseous reactants thereby forming a slurry, the process comprising the steps of: introducing the gaseous reactants into the slurry in a reactor having a first cross-sectional area;subjecting the slurry to a primary filtration in a primary filter to produce a primary filtrate stream;subjecting gases located above the slurry to a demister having a second cross-sectional area, wherein at least a first portion of an entrained material is removed from the gas to produce a demisted gas stream; andsubjecting the demisted gas stream to a secondary gas cleaner wherein at least a second portion of the entrained material is removed from the demisted gas stream,wherein the second cross-sectional area of the demister is smaller than the first cross-sectional area of the reactor above the slurry level, and whereby a velocity of the gas source is increased as it passes through the demister.
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이 특허에 인용된 특허 (9)
Colvert James H. (P.O. Box 52332 Houston TX 77052) Lionetti Thomas A. (P.O. Box 52332 Houston TX 77052), Air distributor for FCCU catalyst regenerator.
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