Mineral oils: processes and products – Fractionation – Distillation
Reexamination Certificate
2007-02-06
2007-02-06
Caidarola, Glenn (Department: 1764)
Mineral oils: processes and products
Fractionation
Distillation
C208S0480AA, C208S25100H, C208S349000, C208S352000, C208S357000, C208S364000, C208S365000
Reexamination Certificate
active
10387171
ABSTRACT:
Methods of separating components of a mixture, such as crude oil, are disclosed which increase the yield of individual components while decreasing the yield of residue. In one method, a heated mixture is fed to a column, a vapor stream is withdrawn from the column and separated, and a portion of the vapor stream is recycled back to the column. In another method, a mixture is separated into streams composed substantially of components having light, intermediate or heavy molecular weight and/or low, intermediate or high boiling point, respectively, and the streams are fed into the column at different positions. In both methods, individual light, intermediate and/or heavy molecular weight and/or low, intermediate and/or high boiling point component streams are then selectively withdrawn from the column.
REFERENCES:
patent: 3308060 (1967-03-01), Ellis
patent: 3798153 (1974-03-01), Arndt, Jr. et al.
patent: 3886062 (1975-05-01), Peiser et al.
patent: 4082653 (1978-04-01), DeGraff
patent: 4131538 (1978-12-01), Rose et al.
patent: 4239618 (1980-12-01), Peiser et al.
patent: 4274944 (1981-06-01), Bannon
patent: 4308130 (1981-12-01), Bannon
patent: 4321132 (1982-03-01), Richards
patent: 54020007 (1979-02-01), None
patent: 55069693 (1980-05-01), None
patent: 55086883 (1980-07-01), None
patent: 60061002 (1985-04-01), None
patent: 60101191 (1985-06-01), None
patent: 60118202 (1985-06-01), None
patent: 61050602 (1986-03-01), None
patent: 61133289 (1986-06-01), None
patent: 62119293 (1987-05-01), None
patent: 63006086 (1988-01-01), None
patent: 4114088 (1992-04-01), None
patent: WO 9958449 (1999-11-01), None
Bagajewicz Miguel J.
Ji Shuncheng
Caidarola Glenn
Dunlap Codding & Rogers P.C.
Singh Prem C.
The Board of Regents of the University of Oklahoma
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