초록 ▼

An apparatus for an endothermic reaction of a gas such as steam reforming having a cylindrical vessel which is provided therein a fuel gas supply room, a combustion catalyst holding wall, a flue gas passage room, and a reaction room, all of which are cylindrical or annular and coaxially piled in thi

An apparatus for an endothermic reaction of a gas such as steam reforming having a cylindrical vessel which is provided therein a fuel gas supply room, a combustion catalyst holding wall, a flue gas passage room, and a reaction room, all of which are cylindrical or annular and coaxially piled in this order, the catalyst holding wall having a combustion catalyst holding layer on a flue gas passage room side thereof and the reaction room having a product gas passage; whereby a mixture of a fuel gas and an oxygen containing gas passes through the catalyst holding wall from the supply room into the flue gas passage room, being burnt by the catalyst to become a flue gas and to generate combustion heat, and the flue gas is discharged while the heat is given to the reaction room mainly by radiation from the catalyst layer; a raw material gas passes through the reaction room reacting endothermically to become a product gas, which is discharged through the product gas passage in countercurrent heat exchange arrangement with the raw material gas passing through the reaction room.

대표청구항 ▼

An apparatus for an endothermic reaction of a gas comprising: a vertical cylindrical vessel and being provided therein; an annular endothermic reaction room having two cylindrical walls coaxial with said vessel; a gas permeable, cylindrical combustion catalyst holding wall holding a combustion catal

An apparatus for an endothermic reaction of a gas comprising: a vertical cylindrical vessel and being provided therein; an annular endothermic reaction room having two cylindrical walls coaxial with said vessel; a gas permeable, cylindrical combustion catalyst holding wall holding a combustion catalyst holding layer on a side thereof which side faces said reaction room, which wall being adjacent to at least one of said cylindrical walls of said reaction room and coaxial with said vessel; a flue gas passage room being an annular room enclosed by a wall which includes said at least one of said cylindrical walls of said reaction room and said combustion catalyst holding wall; a product gas passage being in countercurrent heat exchange arrangement with said reaction room and connected to the same at an end thereof; a fuel gas supply room being on a different side of said combustion catalyst holding wall from said flue gas passage room, and enclosed by a wall including said combustion catalyst holding wall; raw material gas supply means connected to said reaction room at another end thereof; fuel gas supply means and oxygen containing gas supply means both connected to said fuel gas supply room; flue gas discharge means connected to said flue gas passage room; and product gas discharge means connected to said product gas passage, whereby a fuel gas and an oxygen-containing gas are supplied into said fuel gas supply room through said fuel gas supply means and oxygen containing gas supply means, respectively, thereafter said two gases pass through said combustion catalyst holding wall into said flue gas passage room and said fuel gas is burnt by said combustion catalyst; heat generated by said combustion is brought to said reaction room by radiation from said combustion catalyst holding layer through said flue gas passage room and said at least one of said walls of said reaction room; a flue gas made by said combustion is discharged through said flue gas passage room and said flue gas discharge means, and residual heat of said flue gas is also given to said reaction room through said at least one of said walls of said reaction room; and a raw material gas is supplied through said raw material gas supply means into said reaction room, passes therethrough and reacts endothermically to become a product gas, then said product gas is discharged through said product gas passage countercurrently with said raw material gas passing through said reaction room giving residual heat thereof to said raw material gas, and through said product gas discharge means.