Mineral oils: processes and products – Refining – Sulfur removal
Reexamination Certificate
2007-11-06
2007-11-06
Caldarola, Glenn (Department: 1764)
Mineral oils: processes and products
Refining
Sulfur removal
C208S210000, C208S25100H, C208S25400R
Reexamination Certificate
active
11007846
ABSTRACT:
A process where the need to circulate hydrogen through the catalyst is eliminated is provided. This is accomplished by mixing and/or flashing the hydrogen and the oil to be treated in the presence of a solvent or diluent in which the hydrogen solubility is “high” relative to the feed. The type and amount of diluent added, as well as the reactor conditions, can be set so that all of the hydrogen required in the hydroprocessing reactions may be available in solution. The oil/diluent/hydrogen solution can then be fed to a plug flow reactor packed with catalyst where the oil and hydrogen react. No additional hydrogen is required, therefore, hydrogen recirculation is avoided and trickle bed operation of the reactors is avoided. Therefore, the large trickle bed reactors can be replaced by much smaller tubular reactor.
REFERENCES:
patent: 2646387 (1953-07-01), Francis
patent: 2698279 (1954-12-01), Mondria
patent: 2902444 (1959-09-01), Shmidl
patent: 2966456 (1960-12-01), Honeycutt
patent: 3152981 (1964-10-01), Berlin et al.
patent: 3730880 (1973-05-01), Van der Toorn et al.
patent: 3880598 (1975-04-01), Van der Toorn et al.
patent: 3958957 (1976-05-01), Koh et al.
patent: 4209381 (1980-06-01), Kelly, Jr.
patent: 4298451 (1981-11-01), Neuworth
patent: 4311578 (1982-01-01), Fant et al.
patent: 4333824 (1982-06-01), Brown et al.
patent: 4381234 (1983-04-01), Audeh et al.
patent: 4390411 (1983-06-01), Scinta et al.
patent: 4397736 (1983-08-01), Low
patent: 4399025 (1983-08-01), Fletcher et al.
patent: 4424110 (1984-01-01), Bearden, Jr. et al.
patent: 4428821 (1984-01-01), Baset
patent: 4441983 (1984-04-01), Garg
patent: 4464245 (1984-08-01), Hodek
patent: 4485004 (1984-11-01), Fisher et al.
patent: 4486293 (1984-12-01), Garg
patent: 4491511 (1985-01-01), Skinner et al.
patent: 4514282 (1985-04-01), Poynor et al.
patent: 4536275 (1985-08-01), Bronfenbrenner et al.
patent: RE32120 (1986-04-01), Low
patent: 4585546 (1986-04-01), Bowes et al.
patent: 4591426 (1986-05-01), Krasuk et al.
patent: 4663028 (1987-05-01), Ditman
patent: 4678556 (1987-07-01), Hicks et al.
patent: 4698147 (1987-10-01), McConaghy, Jr.
patent: 4853104 (1989-08-01), Degnan, Jr. et al.
patent: 4857168 (1989-08-01), Kubo et al.
patent: 4909927 (1990-03-01), Bell
patent: 4911821 (1990-03-01), Katzer et al.
patent: 4944863 (1990-07-01), Smith et al.
patent: 4968409 (1990-11-01), Smith
patent: 4995961 (1991-02-01), Hays et al.
patent: 5009770 (1991-04-01), Miller et al.
patent: 5013424 (1991-05-01), James, Jr. et al.
patent: 5021142 (1991-06-01), Bortz et al.
patent: 5024750 (1991-06-01), Sughrue, II et al.
patent: 5035793 (1991-07-01), Nebesh et al.
patent: 5068025 (1991-11-01), Bhan
patent: 5071540 (1991-12-01), Culross et al.
patent: 5110445 (1992-05-01), Chen et al.
patent: 5110450 (1992-05-01), Culross et al.
patent: 5132007 (1992-07-01), Meyer et al.
patent: 5178750 (1993-01-01), Mead
patent: 5196116 (1993-03-01), Ackerson et al.
patent: 5198103 (1993-03-01), Meyer et al.
patent: 5200063 (1993-04-01), Neskora et al.
patent: 5240592 (1993-08-01), Meyer et al.
patent: 5269910 (1993-12-01), Matsumura et al.
patent: 5312543 (1994-05-01), Taylor et al.
patent: 5336395 (1994-08-01), Pabst et al.
patent: 5395511 (1995-03-01), Kubo et al.
patent: 5474668 (1995-12-01), Ackerson et al.
patent: 5496464 (1996-03-01), Piskorz et al.
patent: 5620588 (1997-04-01), Ackerson et al.
patent: 5705052 (1998-01-01), Gupta
patent: 5741414 (1998-04-01), Waku et al.
patent: 5744025 (1998-04-01), Boon et al.
patent: 5820749 (1998-10-01), Haluska et al.
patent: 5827421 (1998-10-01), Sherwood, Jr.
patent: 5856261 (1999-01-01), Culross et al.
patent: 5868921 (1999-02-01), Barre et al.
patent: 5906731 (1999-05-01), Abdo et al.
patent: 5925239 (1999-07-01), Klein et al.
patent: 5928499 (1999-07-01), Sherwood, Jr. et al.
patent: 5935416 (1999-08-01), Cody et al.
patent: 5954945 (1999-09-01), Cayton et al.
patent: 5958218 (1999-09-01), Hunter et al.
patent: 5958220 (1999-09-01), Reynolds et al.
patent: 5968348 (1999-10-01), Sherwood, Jr.
patent: 5972202 (1999-10-01), Benham et al.
patent: 5976353 (1999-11-01), Cody et al.
patent: 6123835 (2000-09-01), Ackerson et al.
patent: 6428686 (2002-08-01), Ackerson et al.
patent: 0419123 (1991-03-01), None
patent: 0464931 (1992-01-01), None
patent: 699733 (1995-03-01), None
patent: 785974 (1935-05-01), None
patent: 954644 (1991-02-01), None
patent: 934907 (1961-07-01), None
patent: 1232173 (1969-11-01), None
patent: 1407794 (1971-10-01), None
patent: 1346265 (1974-02-01), None
patent: 3179089 (1991-08-01), None
B.M. Sankey and D.A. Gudelis, 18.3 Lube Oil Extraction, Imperial Research Dept. Canada, no date.
J.D. Bushell and R.J. Fiocco, Engineering Aspects of the Exol N Lube Extraction Process, New Technology in Lube Oil Manufacturing, pp. 159-167. no date.
L.C. Kemp, Jr., G.B. Hamilton and H.H. Gross, Furfural as a Selective Solvent in Petroleum Refining, Industrial and Engineering Chemistry, Feb. 1948, pp. 220-227, vol. 40, No. 2.
Ackerson Michael D.
Byars Michael Steven
Bergen Grady K.
Caldarola Glenn
Douglas John
Griggs Bergen LLP
Process Dynamics, Inc.
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