摘要:
A chemical reactor has two chambers (1,3) separated by a partition wall (5), a porous heat radiating body (2) being disposed in one of the chambers (1) and a porous heat-receiving body (4) being disposed in the other chamber (3). The heat-receiving body (4) is divided into three layers (4a,4b,4c) in the direction of flow of the raw gas mixture through it and the porosity of the layers increases in the direction of flow of the gas. The resultant differential ability to absorb the radiant heat means that there is a substantially linear temperature differential through the heat-receiving body whereby the catalyst material dispersed in it can operate effectively substantially throughout its entire volume.
摘要:
A chemical reactor has two chambers (1 ,3) separated by a partition wall (5), a porous heat radiating body (2) being disposed in one of the chambers (1) and a porous heat-receiving body (4) being disposed in the other chamber (3). The heat-receiving body (4) is divided into three layers (4a,4b,4c) in the direction of flow of the raw gas mixture through it and the layer (4c) furthest downstream in the heat-receiving body has a catalyst material dispersed in it whilst the other two layers (4a,4b) do not. Reactant gases (9) passing through the heat-receiving body (4) are thus heated in the two upstream layers (4a,4b) and only begin to react in the downstreap layer (4c) where the catalyst is located.
摘要:
A chemical reactor has two chambers (1,3) separated by a partition wall (5), a porous heat radiating body (2) being disposed in one of the chambers (1) and a porous heat-receiving body (4) being disposed in the other chamber (3). The heat-receiving body (4) is divided into three layers (4a,4b,4c) in the direction of flow of the raw gas mixture through it and the porosity of the layers increases in the direction of flow of the gas. The resultant differential ability to absorb the radiant heat means that there is a substantially linear temperature differential through the heat-receiving body whereby the catalyst material dispersed in it can operate effectively substantially throughout its entire volume.
摘要:
A method of producing a gaseous mixture containing hydrogen gas by reacting a methane-rich gas composed mainly of lower hydrocarbons with steam under heat in a radiation heating device comprised of a heating zone (A), a zone (B) to be heated, a gas non-permeable boundary member (C) separating and defining these zones (A) and (B), a porous radiating member (D) having many gas-flowable pores in the heating zone (A) and a porous heat receiving member (E) having many gas-flowable pores in the heated zone, which comprises passing a high-temperature gas through the pores of the porous radiating member (D) from that side of the heating zone (A) which adjoins the gas non-permeable boundary member (C) to thereby heat the porous radiating member (D), using a porous heat receiving member (E) having a catalyst for said reaction under heat on the surfaces of gas-flowable pores as the porous heat receiving member (E) in the zone (B) to be heated, and passing steam and a methane-rich gas composed mainly of lower hydrocarbons through the pores of the porous heat receiving member from that side of the heated zone (B) which adjoins the gas non-permeable boundary member (C) to form a gaseous mixture containing hydrogen gas.
摘要:
A method of producing a gaseous mixture containing hydrogen gas by reacting a methane-rich gas composed mainly of lower hydrocarbons with steam under heat in a radiation heating device comprised of a heating zone (A), a zone (B) to be heated, a gas non-permeable boundary member (C) separating and defining these zones (A) and (B), a porous radiating member (D) having many gas-flowable pores in the heating zone (A) and a porous heat receiving member (E) having many gas-flowable pores in the heated zone, which comprises passing a high-temperature gas through the pores of the porous radiating member (D) from that side of the heating zone (A) which adjoins the gas non-permeable boundary member (C) to thereby heat the porous radiating member (D), using a porous heat receiving member (E) having a catalyst for said reaction under heat on the surfaces of gas-flowable pores as the porous heat receiving member (E) in the zone (B) to be heated, and passing steam and a methane-rich gas composed mainly of lower hydrocarbons through the pores of the porous heat receiving member from that side of the heated zone (B) which adjoins the gas non-permeable boundary member (C) to form a gaseous mixture containing hydrogen gas.