Methods and systems for characterizing a sorbent tube

Details Methods and systems for characterizing a sorbent tube Methods and systems for characterizing a sorbent tube

2006-09-26

2006-09-26

Garber, Charles (Department: 2856)

Measuring and testing

Gas analysis

Gas chromatography

Reexamination Certificate

active

07111494

ABSTRACT:
Disclosed are systems and methods that include providing a vessel having an adsorbent disposed therein, the vessel having an inlet and an outlet for communicating a carrier gas through the vessel; determining a differential pressure between the inlet and the outlet for a known flow rate at the outlet; and, determining a geometric measure for the vessel based on a ratio of the known flow rate and the differential pressure. In some embodiments, the methods and systems can include a viscosity in the ratio, determining a flow rate at ambient pressure using a factor based on a ratio of a gas pressure at the output and ambient pressure, and/or, determining a flow rate at ambient temperature using a factor based on a ratio of a temperature at the output and ambient temperature.

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