Distillation: processes – separatory – And returning product of distillation step to distillation zone
Patent
1982-07-12
1984-12-25
Bascomb, Wilbur
Distillation: processes, separatory
And returning product of distillation step to distillation zone
203 94, 203DIG25, 196111, 202153, 208358, B01D 316
Patent
active
044902158
ABSTRACT:
A distillation method and apparatus which comprises (a) a distillation zone adapted for the countercurrent contact of liquid and vapor, (b) a reboiler feed liquid compartment (c) means for directing distillation zone liquid into the reboiler liquid feed compartment, (d) a thermosyphon reboiler for partial vaporization of liquid thereto to produce reboiled vapor and liquid flows, (e) a conduit for the flow of liquid from the reboiler liquid feed compartment to the reboiler, (f) a reboiler return liquid compartment, (g) a conduit for the flow of reboiled liquid from the reboiler to the reboiler return compartment, (h) a conduit for the flow of reboiled vapor from the reboiler to the distillation zone, (i) means for communication of liquid by gravity flow between the reboiler feed compartment and the reboiler return compartment to provide substantially equal liquid levels in the two reservoirs, (j) a distillation zone liquid product compartment, (k) means for overflow of liquid from the reboiler return compartment to the product compartment to maintain a substantially constant level of liquid in the reboiler return compartment, and (l) means for withdrawal of liquid product from the product compartment.
REFERENCES:
patent: 2071643 (1937-02-01), Maker
patent: 2398213 (1946-04-01), Dutson et al.
patent: 2534173 (1950-12-01), Kraft
patent: 2795536 (1957-06-01), Grossberg et al.
patent: 3119764 (1964-01-01), Cabbage
patent: 3442767 (1969-05-01), Hall
patent: 3766021 (1973-10-01), Randall
Bascomb Wilbur
Reper Ronald R.
Shell Oil Company
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