STUDY OF CHEMISORPTION AND HYDROGENATION OF 2-BUTENES ON PLATINUM BY TEMPERATURE-PROGRAMMED DESORPTION.

Article abstract of DOI:10.1246/bcsj.58.82

The temperature-programmed desorption (TPD) chromatograms of cis- and trans-2-butene from platinum black comprised three peaks (A, B, and C) with peak maxima at about 253, 373, and 573 K, respectively. Peak A was identified to be cis- or trans-2-butene and butane. Peaks B and C were from mixtures of cis- or trans-2-butene and butane with a trace amount of propylene. The propylene may have been formed from chemisorbed cis- or trans-2-butene by decomposition as the temperature was raised during the subsequent TPD. the reactivities of various types of chemisorbed hydrogen previously detected by TPD were also investigated with regard to the hydrogenation of 2-butenes.