METHOD OF DEHYDROGENATING C-C PARAFFIN HYDROCARBONS Russian patent published in 2009 - IPC C07C5/333 B01J23/26 B01J37/02 B01J21/04 B01J23/04 

FIELD: chemistry.

SUBSTANCE: invention relates to production of C₃-C₅ hydrocarbons through dehydrogenation of corresponding paraffin hydrocarbons n reactors with a fluid bed of micro-spherical chromia-alumina catalyst. Method is described for dehydrogenating C₃-C₅ paraffin hydrocarbons in fluid catalyst bed, containing oxides of chrome, potassium and a promoter, deposited on an alumina support which contains boehmite and up to 10 wt % hydrargillite, which is an aggregate in form of regular, including mimetic, and irregular double aggregates, consisting of hexagonal scaly crystals with size greater than 20 mcm.

EFFECT: increased efficiency of the process of dehydrogenating C₃-C₅ paraffin hydrocarbons, increased output of C₃-C₅ olefin hydrocarbons, reduced abrasive action on elements of a two-reactor installation for dehydrogenation when using chromia-alumina catalyst in a fluid bed.

5 cl, 2 tbl, 11 ex, 1 dwg