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The aim of the project was research into new active phases among the nitrides and sulphides of transition metals and into new non-acid supports for the (Ni-Mo)S phase, and the study of the reaction mechanism. In parallel with a study using physico-chemical methods, a step-by-step research method made it possible to classify the new active phases under investigation, testing first of all with simple molecules, then with molecule mixtures. A final test, under industrial conditions, with a heavy fraction, was carried out on the best supported catalysts. The conclusions demonstrate that amongst the innovating phases, only those composed of the pyrite type MS(2), containing ruthenium, are more active than the usual MoS(2) phase in the stages of hydrogenation, and permit comparison of the different types of catalysts.

Additional information

Authors: SZABO G, TOTAL Centre de Recherches, Harfleur (FR)
Bibliographic Reference: EUR 13326 FR (1991) 138 pp., MF, ECU 8
Availability: (2)
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