DEVICE FOR OBTAINING A HYDROGEN-CONTAINING MIXTURE FROM AMMONIA Russian patent published in 2023 - IPC C01B3/04 

FIELD: chemical engineering.

SUBSTANCE: device is disclosed for producing a hydrogen-containing mixture from ammonia, comprising a catalytic reactor with a catalyst, a heating element, inlet and outlet nozzles. At the same time, the device is equipped with a water-cooled counterflow heat exchanger connected to the catalytic reactor, the catalytic reactor is equipped with a heat-insulating housing and is made in the form of an ammonia heating unit and a catalytic ammonia decomposition unit installed inside the heat-insulating housing, each including pairs of coaxially and vertically installed outer and inner pipes, annular space between the outer and inner pipes of the ammonia catalytic decomposition unit is connected to the annular space of the ammonia heating unit by a gas duct manifold, in the upper part of the outer pipe of the ammonia heating unit, a discharge pipe is made, the lower ends of the inner pipes of each unit are interconnected by an additional manifold, at the upper end of the inner pipe of the ammonia heating unit, an inlet half-nipple for supplying ammonia is installed, a distribution element is installed inside the upper part of the inner pipe of the ammonia heating unit, and its internal space below the distribution element is filled with a capillary-porous body, an additional distribution element is installed inside the lower end of the inner pipe of the ammonia catalytic decomposition unit, above the additional distribution element an ammonia decomposition catalyst is installed inside the inner pipe of the ammonia catalytic decomposition unit, and the upper end of the inner pipe of the ammonia catalytic decomposition unit is connected by a pipeline to the counterflow heat exchanger inlet; half-nipples for supplying ammonia, gas mixture and ammonia decomposition products, and one of the half-nipples is connected to the outlet of the counterflow heat exchanger.

EFFECT: minimization of the formation of by-products in the exhaust gases.

2 cl, 1 dwg, 1 tbl, 1 ex