Disproportionation Reaction. The author used a continuous flow-type tubular reactor, consisting of a 50-cm. long, 0.635cm. O.D. stainless steel tube. The tube held 0.5 ml. of 100 to 200 mesh catalyst. The catalyst used in most of the experiments was a commercial synthetic silica-alumina cracking catalyst. The catalyst contained 10 weight % alumina, 90 weight % silica, and 0.1 weight % Na20. The B.E.T. nitrogen surface area of the catalyst was 340 m.2 per gram. The experiments were carried out at atmospheric pressure with a hydrogen diluent at a hydrogen-tomethylethylbenzene mole ratio of 3. Liquid feed rate was varied to obtain different conversion levels. The author collected the reaction products in an acetone-dry ice-cooled condenser. Reaction periods were 65 minutes long.Product Analysis. A 300-foot long, 0.02-inch I.D. capillary column was used for the analyses of the liquid products. The column was packed with Ucon LB550-X polypropylene glycol. Sample sizes were between 2 and 5 µ . The analytical procedure is described in detail by Baumann and Csicsery
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