METHOD OF PRODUCING AROMATIC HYDROCARBONS

摘要

1446522 Aromatic hydrocarbons MOBIL OIL CORP 9 Aug 1974 [9 Aug 1973 (7)] 35177/74 Heading C5E A feed comprising aliphatic oxygen-containing organic compounds is transformed into a product comprising aromatic hydrocarbons by contact at 0-3000 p.s.i.g. at a temperature of at least 500‹ F. with a crystalline aluminosilicate zeolite having a SiO 2 : Al 2 O 3 ratio of at least 12 and a constraint index (defined) of 1 to 12. The feed may comprise an alcohol, ether or ketone or a plurality of oxygen-containing compounds obtained by conversion synthesis gas which is itself obtained from a fossil fuel such as coal, shale oil or oil from tar sands. Suitable zeolites are ferrocrite, brevosterite, stillbite, dachiardite, epistilbite, henlandite, clinoptilolite, ZSM-5 type ZSM-12, ZSM-21 or tetraethylammonium nordenite. The zeolite may be subjected to base exchange with cations of metals of Groups Ib, IIa, IIb, IIIa, IIIb, IVa, IVb or VIII.