Liquid purification or separation – Processes – Ion exchange or selective sorption
Patent
1980-12-12
1982-09-28
Spitzer, Robert H.
Liquid purification or separation
Processes
Ion exchange or selective sorption
55 33, 55 58, 55 62, 55179, 55208, 55387, 208310R, 210185, 210274, 568917, B01D 1500, C07C 3108
Patent
active
043517323
ABSTRACT:
Process and apparatus for dehydrating liquid phase ethanol in an adsorber unit containing at least two towers that cycle between adsorption and desorption cycles, characterized in the desorption cycle by an indirect heating volatilization of absorbed and adsorbed liquid at ambient pressures, and by a final stages desorption under sub-atmospheric pressures. In preferred practice, an inert sweep gas at sub-atmospheric pressures assists in removal of vapors evolved in the final stages of the desorption cycle.
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Psaras John D.
Zahniser James A.
Spitzer Robert H.
The C. M. Kemp Manufacturing Co.
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