HYDROCARBON GAS ADSORPTION AND CLEANING CATALYST, AND ADSORPTION AND CLEANING EQUIPMENT

摘要

PROBLEM TO BE SOLVED: To make the amount of HC (hydrocarbons) released small or zero by cleaning adsorbed HC when an adsorbent is regenerated by heating.

SOLUTION: A hydrocarbon gas adsorption and cleaning catalyst is provided which is based on Ce carried on H type β-zeolite or H type mordenite having an Si to 2Al weight ratio of 200-500 in such a way that the weight ratio and atomic ratio of Ce to Al contained structurally in the β-zeolite or mordenite ranges from 40 to 120 and from 20 to 60, respectively.

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