Method and apparatus using molecular sieves for freeze drying

Details Method and apparatus using molecular sieves for freeze drying Method and apparatus using molecular sieves for freeze drying

1989-12-06

1991-07-30

Makay, Albert J.

Drying and gas or vapor contact with solids

Apparatus

Vacuum

34 5, 55389, 55 73, F26B 1330

Patent

active

050350650

ABSTRACT:
An apparatus and method is described for sequestering sublimating water vapor with molecular sieves during freeze drying. Long mesh columns of sieves permit unimpeded sublimating water vapor flow while efficiently adsorbing sublimating water vapor at high flow rates, and also allow efficient sieve desorption during regeneration.

REFERENCES:
patent: 3501897 (1970-03-01), Van Helden et al.
patent: 3722189 (1973-03-01), Tourtellotte
patent: 4561191 (1985-12-01), Parkinson

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