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公开(公告)号:US4036592A
公开(公告)日:1977-07-19
申请号:US581697
申请日:1975-05-28
CPC分类号: G01N27/16 , Y10T436/204998
摘要: In a catalytic method for selectively detecting carbon monoxide in the presence of hydrogen in an oxygen-containing atmosphere, such as may be used in monitoring exhaust gases from combustion processes, the catalyst is a platinum-rhodium alloy containing not less than about 10% rhodium. The catalyst is maintained at a temperature such that it will cause combustion of carbon monoxide but will not readily cause combustion of hydrogen, the thermal effect on the catalyst resulting when a test atmosphere is brought into contact with it being sensed to provide a measure of the carbon monoxide concentration in that atmosphere.
摘要翻译: 在用于在含氧气氛中的氢存在下选择性地检测一氧化碳的催化方法,例如可用于监测来自燃烧过程的废气,催化剂是含有不少于约10%铑的铂 - 铑合金 。 催化剂保持在这样的温度,使得它将引起一氧化碳的燃烧,但不会容易地引起氢的燃烧,当感测到测试气氛与其接触时,对催化剂的热效应被提供 该气氛中的一氧化碳浓度。