USPTO Applicaton Class USPTO The Patent Silica alumina catalyst amp.
Friday, November 28th, 2008By Ben Wasserman Sunday Sep, foodconsumer. In the recovery zone, ethylbenzene is separated and recovered from the product. Benzene, with only trace amounts of such materials as toluene, ethylbenzene, and C aliphatic compounds that cannot readily be separated from benzene. In the absence of oxygen with a catalyst composition comprising an aluminosilicate having a silica to alumina molar ratio of at least, said aluminosilicate being loaded with i gallium or a compound thereof and ii a metal or a compound thereof from Group VIIB of the Periodic Table. Describes a method of making aromatic hydrocarbons and hydrogen from lower hydrocarbon containing at least mol of methane, in the presence of a catalyst, such as ZSM supporting molybdenum, tungsten or rhenium, in which the catalyst periodically and alternately switched between a production cycle, in which the catalyst is contacted with the lower hydrocarbon, and regeneration cycle, in which the catalyst is contacted with hydrogen. Expect less junk mail as marketers cut back.