Catalyst development for selective conversion of syngas to mainly aromatic hydrocarbons
The following catalytic systems were developed, tested in the Fischer Tropsch reaction and characterised by XPS, TEM and CO chemisorption: (1) Fe/Mn oxides impregnated with Co, Cu, Pd, Rh and K respectively; (2) Co/Mn oxide catalysts with different compositions to maximise the formation of olefinic products; (3) Rh/SiO(2) catalysts doped with rare earth compounds and ThO(2) to maximise the formation of oxygenates; (4) mixtures of the catalysts (1), (2) or (3) with pentasil zeolites to form aromatic hydrocarbons. Two modes of operation were tested: a single bed reactor with a mechanical mixture of the components and a dual operation with the FT component and the zeolite respectively in separate reactors. The impregnation of Fe/Mn oxides with Cu and a Co/Mn ratio of 1/4 leads to the most promising catalysts. The optimal zeolite for the formation of the aromatics from propene was determined. A knowledge based expert system for catalyst selection was developed.
Bibliographic Reference: EUR 13974 EN (1991) 378 pp., MF, ECU 16
Record Number: 199210102 / Last updated on: 1994-12-02
Original language: en
Available languages: en