REFORMING CATALYST, CONTAINING HEXAALUMINATE OF HYDROCARBONS AND REFORMING METHOD Russian patent published in 2017 - IPC B01J23/32 B01J21/04 B01J23/00 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to the catalyst, containing the hexaaluminate, in which there is the hexaaluminate containing phase, including cobalt in the amount from 2 up to 15 moll. % and at least one other element, selected from the group consisting of lanthanum, barium and strontium in the amount from 2 up to 25 moll. %, and the amount of aluminium is from 70 up to 90 moll. %. Besides the hexaaluminate containing phase in the catalyst, there is from 0 up to 50 wt % of the accessory oxide phase. The proposed catalyst production method contains according to the invention the aluminium source preparing, preferably alumina and/or aluminium hydroxide (boehmite), in the form of dispersible primary particles ≤with the size 500 nm; placing into contact of the fine aluminium source to the fusible or soluble cobalt containing compound, and at least one soluble or fused salt of the metal, selected from the group consisting the barium, lanthanum and strontium; careful mixing of the aluminium source with dissolved, or, respectively, molten metal salts; the mixture drying; the mixture low-temperature calcination; moulding, or respectively shaping. Besides, the invention relates to the gas reforming method, containing more than 70 vol. % of hydrocarbons, preferably methane and in the presence of carbon dioxide, with the hexaaluminate catalyst, which is heated at the contact with gas to be reformed at the temperature above 700°C, preferably above 800°C, more preferably above 900°C in the reactor, the pressure higher than 5 bar, preferably higher than 10 bar, more preferably above 15 bar, the space velocity of the reforming gas, placed into contact to the catalyst, is in the range from 500 to 20,000 h^-1, and the catalyst containing hexaaluminate, contains the cobalt and at least one other metal, selected from the group, consisting of barium, strontium and lanthanum.

EFFECT: catalyst with the low lanthanum content, with high coking resistance and high catalytic activity, using over the long periods of time in extremely hard process conditions.

15 cl, 4 dwg, 6 tbl