DEVICE FOR PRODUCING NANOSIZED CATALYST SUSPENSION AND METHOD OF ITS PRODUCTION Russian patent published in 2019 - IPC B01J35/12 B01J37/04 B01J37/08 B22F9/04 B01F5/26 B82B3/00 

FIELD: technological processes.

SUBSTANCE: invention relates to suspension catalysis and synthesis of catalysts and can be used in a Fischer-Tropsch synthesis reaction in slurry reactors (slurry reactors). Device for producing suspension of nanosized Fischer-Tropsch synthesis catalyst includes a reactor equipped with a rotating mechanical mixer, a catalyst precursor solution inlet device and a gas inlet device. Reactor is installed in two-level furnace with possibility of dispersion medium heating in reactor above its melting temperature. Reactor is equipped with a flange covering it from above, through the central hole of which the mixer passes, and operates at atmospheric pressure. Gas inlet device represents two inert gas feed tubes passing through flange and interconnected above it. Their lower part is located at the mixer blades height. Device for feeding the solution of the catalyst precursor is a tube, the lower part of which is located above the level of the dispersion medium placed in the reactor. Offgas discharge unit includes an outlet tube, a baffle-type filter filled with a nozzle attachment, a return cooler with a jacket filled with heat carrier and an absorber connected to it. Method of producing a suspension of a nanoscale Fischer-Tropsch synthesis catalyst involves dissolving salts of active metals in water, heating the dispersion medium – paraffin – to a temperature higher than the decomposition temperature of salts of active metals, introduction of catalyst precursor solution into heated paraffin at constant stirring and current of inert gas for blowdown of decomposition products to produce catalyst suspension in paraffin. Nitrates are used as salts of active metals. Said precursors inlet and suspension are produced in proposed device. Heating is performed up to 260–300 °C at atmospheric pressure in current of inert gas. Waste gases are discharged together with evaporated part of dispersion medium, returned to cycle, and water vapor and other exhaust gases are collected in absorber.

EFFECT: minimization of losses of dispersion medium and provision of homogeneity of suspension at formation of consolidated batches of catalytic suspensions with sufficiently high speed in amount required for testing in pilot plants, simplification of design, reduction of cost of device and improvement of its safety.

5 cl, 1 dwg, 6 ex