CATALYST FOR DEHYDROGENATING OF ALKYLAROMATIC HYDROCARBONS Russian patent published in 2017 - IPC B01J23/889 B01J37/04 C07C5/333 

FIELD: chemistry.

SUBSTANCE: catalyst comprises at least one iron compound, at least one potassium compound, at least one cerium compound, from 0.7 to 10 wt % of at least one manganese compound calculated as MnO₂, from 30 to 150 ppm of at least one titanium compound calculated as TiO₂, and from 0.1 to 10 wt % of at least one calcium compound calculated as CaO. The process for the preparation of the catalyst comprises the following steps: i) preparing a premixed catalyst mixture by mixing at least one iron compound, at least one potassium compound, at least one cerium compound, at least one manganese compound, at least one titanium compound, at least one calcium compound and, if necessary, additional metal compounds, if necessary additional components and, if necessary, at least one binder with a solvent; ii) forming the shaped catalyst articles from the pre-prepared catalyst mixture obtained in step i); iii) drying the shaped catalyst articles and calcining the shaped catalyst articles. A method for the catalytic dehydrogenation of a hydrocarbon wherein a mixture of steam and at least one hydrocarbon has a steam/hydrocarbon molar ratio in the range of 4 to 7 in the presence of a catalyst is claimed.

EFFECT: long catalyst life and high yield in the dehydrogenation process with a low vapour-hydrocarbon ratio.

9 cl, 3 dwg, 3 tbl, 9 ex