Organic acids typical reactivity scales

The purification of the exhaust gas of PTA plants is one application where halohydrocarbon destruction catalysts have found use at a global scale (12, 13, 17, 18). Typically the untreated exhaust contains a mixture of volatile organic components including methyl bromide, carbon monoxide, hydrocarbons, methyl acetate, and organic acids. The presence of the methyl bromide sets forth the requirement that a catalyst such as the HDC be used. Additionally, the catalyst must be able to effectively destroy all the other organic components (with their widely different intrinsic reactivities toward air oxidation) of the mixture at reasonably low temperatures. Currently most PTA offgas remediation catalysts are used at an inlet temperature higher than 350°C. An improvement of catalyst activity is desired to... 

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