CATALYST TUBE FOR REFORMING Russian patent published in 2021 - IPC C01B3/38 B01J8/06 

FIELD: physics.

SUBSTANCE: invention relates to a catalyst tube and a multi-tube reactor for regenerative catalytic conversion of process gas, as well as to a method for executing a catalytic conversion reaction using a multi-tube reactor or a catalyst tube, and to an application of the catalyst tube as a catalyst tube for reconstruction of a reformer. The catalyst tube comprises: an inlet of the catalyst tube for introduction of process gas and an outlet of the catalyst tube for discharge of the process gas, wherein said inlet and outlet are located at opposing ends of the catalyst tube; an outer reactor tube; an inner tube extending coaxially inside the outer reactor tube; an interface located between the inner wall of the outer reactor tube and the outer wall of the inner tube; a first annular channel for catalytic conversion of the process gas; a second annular channel for the process gas going counter-flow or direct-flow relative to the process gas passing through the first annular channel; an inlet barrier at the inlet end of the catalyst tube; an outlet barrier at the outlet end of the catalyst tube. Each of the inner tube, the first annular channel and the second annular channel therein has a hole on the inlet side and a hole on the outlet side of the catalyst tube. Additionally, the inlet of the catalyst tube is in fluid communication with the hole of the first annular channel at the inlet end of the catalyst tube, wherein the hole of the first annular channel at the outlet end of the catalyst tube is in fluid communication with either the hole of the second annular channel at the outlet end of the catalyst tube or with the hole of the inner tube at the outlet end of the catalyst tube, and the hole of the second annular channel at the inlet end of the catalyst tube is in fluid communication with the hole of the inner tube at the inlet end of the catalyst tube, and either the hole of the inner tube at the outlet end of the catalyst tube or the hole of the second annular channel at the outlet the end of the catalyst tube is in fluid communication with the outlet of the catalyst tube. The reactor comprises a furnace chamber and at least one said catalyst tube, wherein the inlets and outlets of at least one catalyst tube are located on opposing sides of the furnace chamber.

EFFECT: technical result of the proposed invention is creation of a catalyst tube exhibiting good resistance to relative expansion, wherein the catalyst can be easily changed and/or replaced during a break in operation of the steam reformer, and also wherein such parameters as temperature and pressure are easily measurable without disturbing the hydrodynamics in the catalytic area.

20 cl, 5 dwg