| 摘要 |
Hydrocarbons preferably boiling in the gasoline, kerosine or gas oil ranges are contacted at 420-600 DEG C., 0-1000 p.s.i.g., 0.1-10 v./v./hr. with 0-10,000 S.C.F./B. of hydrogen in the presence of a catalyst comprising (1) a metal, oxide or sulphide of Group VIA or VIII, (2) at least 10% of an anhydrous neutral sulphate of a metal of Groups II, III, V, VI, VIII, or of Sn, Pb, Ti or Mn, or anhydrous CoSO4 and an inactive support, e.g. silica gel or Al2O3. Such catalysts show a low activity for cracking and polymerization reactions but a certain activity for isomerization which appears to be a beneficial adjunct to the dehydrogenating and cyclizing activity. Examples describe the treatment of (1) n-hexane to yield methylcyclopentane, cyclopentane and 2- and 3-methylpentane, and (2) n-heptane to yield toluene, methylhexanes and methylcyclohexane.ALSO:A hydrocarbon conversion catalyst comprises a hydrogenating/dehydrogenating component, 10% weight of an anhydrous neutral metal sulphate of Groups II, III, V, VI, VIII or of Sn, Pb, Ti or Mn or anhydrous CoSO4 and an inactive support. Hydrogenating/dehydrogenating component is defined as a metal, oxide or sulphide of Groups VIa and VIII metals. Neutral metal sulphate is defined as one which yields a 0,1 M or saturated solution having a pH equal to or greater than 6 in distilled water, e.g. those of Ca, Mg and Zn. Inactive support is defined as a compound having no isomerization activity and a benzene adsorption value of less than 3m moles benzene/gm. The inactive supports, e.g. silica gel or Al2O3, may have a surface area greater than 100 sq.m./gm. Comparative examples are given. |
