Slurry hydrocarbon synthesis with liquid hydroisomerization in the synthesis reactor
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IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
C07C-005/22
C07C-001/04
출원번호
US-0992141
(2001-11-06)
발명자
/ 주소
Wittenbrink, Robert Jay
Mart, Charles John
Clark, Janet Renee
Feeley, Jennifer Schaefer
출원인 / 주소
ExxonMobil Research and Engineering Company
대리인 / 주소
Marin, Mark D.
인용정보
피인용 횟수 :
0인용 특허 :
9
초록▼
A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more lift reactors immersed in the slurry body in the synthesis
A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more lift reactors immersed in the slurry body in the synthesis reactor. A monolithic catalyst is preferably used for the hydroisomerization, and slurry circulation up through the lift reactors from the surrounding slurry body, is achieved at least in part by the lift action of the hydroisomerization treat gas. Preferably, catalyst particles are also removed before the slurry contacts the catalyst. Hydroisomerization occurs while the synthesis reactor is producing hydrocarbons, without interfering with the synthesis reaction. A gas bubble reducing downcomer may be used to produce and feed the gas bubble reduced slurry into the lift reactor, thereby providing a hydraulic head assist in the slurry circulation up through and out of the lift reactor.
대표청구항▼
A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more lift reactors immersed in the slurry body in the synthesis
A slurry Fischer-Tropsch hydrocarbon synthesis process for synthesizing liquid hydrocarbons from synthesis gas in a synthesis reactor also hydroisomerizes the synthesized hydrocarbon liquid, which comprises the slurry liquid, in one or more lift reactors immersed in the slurry body in the synthesis reactor. A monolithic catalyst is preferably used for the hydroisomerization, and slurry circulation up through the lift reactors from the surrounding slurry body, is achieved at least in part by the lift action of the hydroisomerization treat gas. Preferably, catalyst particles are also removed before the slurry contacts the catalyst. Hydroisomerization occurs while the synthesis reactor is producing hydrocarbons, without interfering with the synthesis reaction. A gas bubble reducing downcomer may be used to produce and feed the gas bubble reduced slurry into the lift reactor, thereby providing a hydraulic head assist in the slurry circulation up through and out of the lift reactor. ar & Rangnekar, "Synthesis of 2-(aryl/hetaryl)azo-3,4-dihydroxy-5-(4-nitrophenyl)-thiophene-1, 1-dioxone derivatives and their dyeing properties," Indian Journal of Fibre & Textile Research 16: 282-284, Dec. 1991. Miyaji, T. et al., "Electrophotographic photoreceptor using a charge-transporting compound as a charge-generating substance," Chemical Abstracts, Accession No. 1991:546598, 1991. See also JP 03-31850. Miyazaki, H. et al., "Electrophotographic photoreceptor using new photoconductive material," Chemical Abstracts, Accession No. 1991:237611, 1991. See also JP 02-244059. Nakamura, K. et al., "Organic electroluminescent device," Chemical Abstract, Accession No. 2001:451353, 2001. See also JP 2001-167885. Nelson and Boyd, "Enhanced electro-optic response of layered composite materials," Applied Physics Letters 74(17): 2417-2419, Apr. 26, 1999. Ng, S.C. et al., "The Synthesis and Characterisation of Fluorescent Poly(heteroaromatic oxadiazole)s," Macromolecular Chemistry and Physics 202(1): 8-13, 2001. Ogiso, A. et al., "Rewritable optical recording medium including polyheterocyclic dye for high-density laser recording," Chemical Abstracts, Accession No. 2000:715405, 2000. See also JP 2000-280621. Ono, N. et al., "Syntheiss of Oligo(thienylenevinylenes) Substituted with Alkoxy Groups," Heteroatom Chemistry 12(5): 414-417, 2001. Raimundo, J-M. et al., "Design and Synthesis of Push-Pull Chromophores for Second-Order Nonlinear Optics Derived from Rigidified Thiophene-Based π-Conjugating Spacers," Journal of Organic Chemistry 67:205-218, 2002. Raimundo, J-M. et al. "Proquinoid acceptors as building blocks for the design of efficient π-conjugated fluorophores with high electron affinity," Chemical Communications, pp. 939-940, 2000. Raimundo, J-M. et al., "Huge enhancement of the quadratic nonlinear optical susceptibility in push-pull chromophores based on bridged dithienylethylene spacers," Chemical Communications, pp. 1597-1598, 2000. Rangnekar and Mavlankar, "Synthesis of 5-(4-arylazo/hetarylazo-phenyl)-2-hetaryl-3,4-dihydroxy-thiophene derivatives and their application on polyester fibres as disperse dyes," Indian Journal of Fibre & Textile Research 17: 153-157, Sep. 1992. Rangnekar and Mavlankar, "Synthesis of Novel c-Hetero-fused Thiophene Derivatives," Journal of Heterocyclic Chemistry 28(5): 1449-1451, Aug.-Sep., 1991. Reinhardt, B.A. et al., "Optical Power Limiting in Solution Via Two-Photon Absorption: New Aromatic Heterocyclic Dyes with Greatly Improved Performance," Proceedings of SPIE, vol. 3146, pp. 2-11, 1997. Roncali, J., "Synthetic Principles for Bandgap Control in Linear π-Conjugated Systems," Chem. Rev. 97: 173-205, 1997. Shu, Y-C et al., "Synthesis and Characterization of Nonlinear Optical Chromophores with Conformationally Locked Polyenes Possessing Enhanced Thermal Stability," Chemistry of Materials 11(6): 1628-1632, Jun. 1999. Turbiez, M. et al., "Mixed π-conjugated oligomers of thiophene and 3,4-ethylenedioxythiophene (EDOT)," Tetrahedron Letters 41: 5521-5525, 2000. Unrow and Reinhardt, "Synthesis of substituted thiophene-benobisthiazoole oligomers for molecular weight--third order NLO property correlations," Proceedings of SPIE, vol. 1626, pp. 450459, 1992. Wolff, J.J., "Organic Materials for Second-Order Non-Linear Optics," Advances in Physical Organic Chemistry 32: 121-217, 1999. Wu, X. et al., "Highly efficient, thermally and chemically stable nonlinear optical chromophores based on the α-perfluoroaryldicyanovinyl electron acceptors," Chemical Communications, pp. 2391-2392, 1999. Abstract of JP 08-108624, Patent Abstracts of Japan, European Patent Office, Apr. 30, 1996. Abstract of JP 2000-089268, Patent Abstracts of Japan, European Patent Office, Mar. 31, 2000. Abstract of JP 2001-085713, Patent Abstracts of Japan, European Patent Office, Mar. 30, 2001. Kojima et al., "Facile Sunthesis of Thiophene Derivatives Using a Cyclopropenyl Cation," Synthesis 10:1193-1195, Oct. 1996
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