Extractive distillation of hydrocarbon feeds employing mixed sol

Details Extractive distillation of hydrocarbon feeds employing mixed sol Extractive distillation of hydrocarbon feeds employing mixed sol

1989-09-08

1990-09-04

Manoharan, Virginia

Distillation: processes, separatory

Adding material to distilland except water or steam per se

At least two materials

203 56, 203 58, 203 64, 203 65, 203 68, 585865, 585867, B01D 340

Patent

active

049542249

ABSTRACT:
Cycloalkanes (preferably cyclopentane and/or cyclohexane) are separated from close-boiling alkanes by extractive distillation employing as solvent a mixture of (a) at least one N-mercaptoalkyl-2-pyrrolidone (preferably N-mercaptoethyl-2-pyrrolidone) and (b1) at least one N-alkyl-2-pyrrolidone (preferably N-methyl-2-pyrrolidone) and/or (b2) at least one saturated C.sub.5 -C.sub.9 alcohol (preferably cyclohexanol).

REFERENCES:
patent: 2508723 (1950-05-01), Mayland et al.
patent: 2679472 (1954-05-01), Tooke
patent: 2695322 (1954-11-01), Weedman
patent: 2736755 (1956-02-01), Reuter et al.
patent: 2771494 (1956-11-01), Weedman
patent: 2786804 (1957-03-01), Nelson
patent: 2809925 (1957-10-01), Nelson
patent: 2839452 (1958-06-01), Nelson
patent: 2846485 (1958-08-01), Meason et al.
patent: 2891894 (1959-06-01), Cier et al.
patent: 3034969 (1962-05-01), Makin, Jr.
patent: 3114783 (1963-12-01), Butler et al.
patent: 3301911 (1967-01-01), Boatright
patent: 3349009 (1967-10-01), Ruehlen
patent: 3591490 (1971-07-01), Muller et al.
patent: 3860496 (1975-01-01), Ginnasi et al.
patent: 4031148 (1977-06-01), Helgorsky
patent: 4053369 (1977-10-01), Cines
patent: 4121978 (1978-10-01), Becuwe
patent: 4278505 (1981-06-01), Danulat et al.
patent: 4498980 (1985-02-01), Forte
patent: 4514262 (1985-04-01), Berg
patent: 4690733 (1987-09-01), Forte et al.
"Extractive Distillation Saves Energy", by Ian Sucksmith, Chemical Engineering, Jun. 29, 1987, pp. 91-95.
"Handbook of Separation Techniques for Chem. Engineers", by Philip Schweitzer, McGraw Hill Book Co., 1979, pp. 1-135 to 1-143.
"Perry's Chemical Engineers' Handbook", 6th Edition, McGraw Hill Book Co., 1984, p. 13-53 to 13-57.

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