Chemistry: fischer-tropsch processes; or purification or recover – Liquid phase fischer-tropsch reaction
Reexamination Certificate
2005-03-29
2005-03-29
Parsa, J. (Department: 1621)
Chemistry: fischer-tropsch processes; or purification or recover
Liquid phase fischer-tropsch reaction
C208S135000, C208S211000, C208S240000, C208S245000, C208S260000, C585S001000
Reexamination Certificate
active
06872752
ABSTRACT:
The present invention relates to an olefinic naphtha and a process for producing lower olefinc from this naphtha. In the process of the present invention for producing lower olefins, preferably ethylene, at least a portion of a hydrocarbon asset is converted to synthesis gas and at least a portion of the synthesis gas is converted to an olefinic naphtha by a Fischer-Tropsch process. At least a portion of the olefinic naphtha is converted in a naphtha cracker to a product stream comprising lower olefins, and at least a portion of the lower olefins from the product stream of the cracker are recovered.
REFERENCES:
patent: 4125566 (1978-11-01), Trin Dinh et al.
patent: 4149965 (1979-04-01), Pine et al.
patent: 4172843 (1979-10-01), Dwyer et al.
patent: 4269783 (1981-05-01), Brennan et al.
patent: 4568663 (1986-02-01), Mauldin
patent: 4645586 (1987-02-01), Buss
patent: 5322615 (1994-06-01), Holtermann et al.
patent: 5371308 (1994-12-01), Gosselink et al.
patent: 5506272 (1996-04-01), Benham et al.
patent: 5689031 (1997-11-01), Berlowitz et al.
patent: 5766274 (1998-06-01), Wittenbrink et al.
patent: 6162956 (2000-12-01), Berlowitz et al.
patent: 6180842 (2001-01-01), Berlowitz et al.
patent: 6274029 (2001-08-01), Wittenbrink et al.
patent: 6296757 (2001-10-01), Wittenbrink et al.
patent: 6605206 (2003-08-01), Johnson et al.
patent: 6743962 (2004-06-01), O'Rear et al.
patent: 20030199719 (2003-10-01), Johnson et al.
patent: 0161705 (1985-11-01), None
patent: 0609079 (1994-01-01), None
patent: 0921179 (1999-06-01), None
patent: 9714769 (1997-04-01), None
patent: 9856740 (1998-12-01), None
patent: 9856873 (1998-12-01), None
patent: 9856877 (1998-12-01), None
Shah, P.P., “Upgrading of Light Fischer-Tropsch Products, Final Report”, U.S. Dept. of Energy, DE91011315, Nov. 30, 1990.
Jack Owen, “Conversion and uses of liquid fuels from coal”, Coal Research Establishment, National Coal Board, Stoke Orchard, Cheltenham, Glos, GL52 4RZ, UK, Apr. 1981.
“Ethylene from Mobil Zeolite and F-T route economic by 1990”, ECN Technolgoy, Jan. 18, 1982, p. 16.
“Coal-Based chemicals complex outlined”, C&EN, Sep. 6, 1976, p. 7.
H. M. Hutcheon, “Conference: Industrial Conversion of Coal and Carbon to Gas, Liquid and High-Value Sold Products”, Organized by the Industrial Carbon and Grphite Goup of the Society of Chemical Industry, held at the Society of Chemical Industry, London, Apr. 7-8, 1981.
Lewis F. Hatch and Sami Matar, “From Hydrocarbons to Petrochemicals . . . the Plate Place.”, Phoenix, Mar. 1978, pp. 128-139.
A.G. Goossens, “Prediction of Molecular Weight of Petroleum Fractions”, Ind. Eng. Chem., Res. 1996, 35, p. 985-988.
Adriaan G. Goossens, “Prediction of Molecular Weight of Petroleum Fractions”, Ind. Eng. Chem., Res, 1996, 35, pp. 985-988.
Dr. Richard A. White, “Materials Selection for Petroleum Refineries and Gathering Facilities”, NACE International, 1998, Houston, TX pp. 1-14.
Shah, P.P., “Upgrading of Light Fischer-Tropsch Products, Final Report” Contract No. AC22-86PC90014. DE91011315 (DOE/PC/90014-TB) (1990).
Vardi J. et al. “Peroxide Formation in Low Sulfur Automotive Diesel Fuels” SAE paper 920826 (1992).
U.S. Appl. No. 10/355,158, filed Jan. 31, 2003, Rear et al., High Purity Olefinic Naphthas from the Production of Ethylene and Propylene.
U.S. Appl. No. 10/355,110, Lei et al., filed Jan. 31, 2003, Lei et al., Highly Purity Olefinic Naphtas from the Production of Ethylene and Propylene.
U.S. Appl. No. 10/355,279, filed Jan. 31, 2003, O'Rear et al., “Low Acid, High Olefin Fischer-Tropsch Distillate Fuel”.
U.S. Appl. No. 10/354,956, filed Jan. 31, 2003, O'Rear et al., “Low Acid, High Olefin Fischer-Tropsch Distillate Fuel”.
U.S. Appl. No. 10/358,129, filed Jan. 31, 2003, Sasol Technology (Pty) Ltd. “Process for the Preparation of and Composition of a Feedstock Usable for the Preparation of Lower Olefins”.
United Kingdom Search Report dated Jun. 30, 2004.
U.S. Appl. No. 10/043,345, filed Jan. 14, 2002, O'Rear et al.,“Olefin Production from Low Sulfur Hydrocarbon Fractions.”
U.S. Appl. No. 10/355,280, filed Jan. 31, 2003, O'Rear et al., “Stable Olefinic, Low Sulfur Diesel Fuels.”
Chevron Corporation,Technical Review Diesel Fuels, Chapter 7 Diesel Fuel Additives, pp. 55-61 (1998).
Dancuar, L.P., et al., “Performance of the Sasol SPD Naphtha as Steam Cracking Feedstock”,Petroleum Chemistry Division Preprints48(2): 132-138 (2003).
Sundaram, K.M, et al., “Ethylene”,Kirk-Othmer Encyclopedia of Chemical Technology, Chapter 4, Apr. 16, 2001.
Schlesinger, M.D. and H. E. Benson et al., “Upgrading Fischer-Tropsch Products”,Industrial and Engineering Chemistry47(10:2104-2108 (1954).
Lei Guan Dao
O'Rear Dennis J.
Chevron U.S.A. Inc.
Parsa J.
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