Carbon molecular sieve supports for metal catalysts-II. Selective hydrogenation of hydrocarbons over platinum supported on polyfurfuryl alcohol carbon

✍ Scribed by J.L. Schmitt Jr.; P.L. Walker Jr.

• Publisher: Elsevier Science
• Year: 1972
• Tongue: English
• Weight: 536 KB
• Volume: 10
• Category: Article
• ISSN: 0008-6223
• DOI: 10.1016/0008-6223(72)90013-9

✦ Synopsis

The system platinum supported on a carbon molecular sieve has been prepared by carbonizing polyfurfuryl alcohol containing chloroplatinic acid and an activated carbon filler. Static adsorption results indicated that this material could be roughly classed as a 5A molecular sieve since its capacity-for butane was 6 times that for tsobutane. In addition, evidence was obtained for the presence of slit-shaped pores or pore constrictions. Using a continuous flow technique, shape selectivity was demonstrated for the competitive hydrogenations of 3-methyl-1-butene with both I-butene and cyclopentene. No such selectivity was observed in the 1-butene: isobutene system, probably due to the planar structure of isobutene and the significant diffusivity of isobutane at the reaction temperature used.