Patent ID: 6645772
Filing Date: 2003-11-11
Classification: G01N,Y10T

Abstract:
A method for detection of carbon monoxide in a gas feed stream mixture containing carbon monoxide in between about 10 to about 100 parts per million and between about 40% and about 50% by volume of hydrogen, comprising the steps of:(a) periodically directing said feed gas stream mixture through one or more beds of a layer of a catalyst so as to eliminate or substantially reduce said carbon monoxide and to produce a reference gas; (b) directing said reference gas through an instrument capable of measuring carbon monoxide; (c) measuring carbon monoxide in said reference gas and adjusting the instrument to make measurement (c) the zero point reference measurement; (d) directing said gas feed stream mixture to said instrument; (e) measuring carbon monoxide in said feed gas stream mixture, wherein measurement (e) is corrected using the, zero point reference measurement calculated in step (c).