Anhydrous ammonia gas sampler and concentration system

Details Anhydrous ammonia gas sampler and concentration system Anhydrous ammonia gas sampler and concentration system

1995-07-31

1996-10-22

Williams, Hezron E.

Measuring and testing

Sampler, sample handling, etc.

With heating or cooling

73 2333, 73 2341, 23294R, 585801, B01D 700

Patent

active

055678874

ABSTRACT:
An anhydrous ammonia gas sampler and concentration system (10) and method is disclosed that facilitates the collection and evaporation of large volumes of anhydrous ammonia in a safe, clean environment. The ammonia is collected and frozen in two containers (12, 14) connected in series and immersed in a liquid nitrogen bath (42). The frozen ammonia is evaporated through a very slow evaporation process after the containers are removed from the liquid nitrogen bath. The resultant contaminant concentrate provides the means by which a more accurate calculation of the percentage of contaminants in an ammonia sample may be made.

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