Method of recovering adsorbed liquid compounds from molecular sieve columns

Patent · Sat Jan 01 00:00:00 EST 1983

OSTI ID:864806

Burkholder, Harvey R ^[1]; Fanslow, Glenn E ^[1]

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1. Ames, IA

Molecularly adsorbed volatile liquid compounds are recovered from molecular sieve adsorbent columns by directionally applying microwave energy to the bed of the adsorbent to produce a mixed liquid-gas effluent. The gas portion of the effluent generates pressure within the bed to promote the discharge of the effluent from the column bottoms. Preferably the discharged liquid-gas effluent is collected in two to three separate fractions, the second or intermediate fraction having a substantially higher concentration of the desorbed compound than the first or third fractions. The desorption does not need to be assisted by passing a carrier gas through the bed or by applying reduced pressure to the outlet from the bed.

• Research Organization: Ames Laboratory (AMES), Ames, IA; Iowa State Univ., Ames, IA (United States)
• DOE Contract Number: W-7405-ENG-82
• Assignee: Iowa State University Research Foundation, Inc. (Ames, IA)
• Patent Number(s): US 4421651
• OSTI ID: 864806
• Country of Publication: United States
• Language: English

Related Subjects

method
recovering
adsorbed
liquid
compounds
molecular
sieve
columns
molecularly
volatile
recovered
adsorbent
directionally
applying
microwave
energy
bed
produce
mixed
liquid-gas
effluent
gas
portion
generates
pressure
promote
discharge
column
bottoms
preferably
discharged
collected
separate
fractions
intermediate
fraction
substantially
concentration
desorbed
compound
third
desorption
assisted
passing
carrier
reduced
outlet
sorbent column
mixed liquid
applying microwave
reduced pressure
molecular sieve
carrier gas
microwave energy
wave energy
volatile liquid
third fraction
gas effluent
liquid compounds
/210/502/