This invention relates to a chamber in which a chemical reaction is carried out in the presence of catalyst and reagents, comprising at least one catalytic tube (10) into which is placed an internal tube (12) for evacuating the gas that is produced, means for introducing reagents (15) and means for
This invention relates to a chamber in which a chemical reaction is carried out in the presence of catalyst and reagents, comprising at least one catalytic tube (10) into which is placed an internal tube (12) for evacuating the gas that is produced, means for introducing reagents (15) and means for introducing the catalyst (16) that are located in the upper portion of the chamber (1), means for heating the catalytic tube (10) that are arranged in the lower portion of the chamber (1), and in which the catalytic tube (10) comprises, in its upper portion above the catalyst (13), means that promote heat exchange between the reagents and the gas that is produced. The invention also relates to the process that uses this chamber.
대표청구항▼
1. A chamber in which a chemical reaction is performed in the presence of catalyst and reagents, comprising: At least one catalytic tube (10) comprising therein an internal evacuation tube (12) for evacuating exhaust gas to the outside, catalyst (13) being arranged between the internal evacuation tu
1. A chamber in which a chemical reaction is performed in the presence of catalyst and reagents, comprising: At least one catalytic tube (10) comprising therein an internal evacuation tube (12) for evacuating exhaust gas to the outside, catalyst (13) being arranged between the internal evacuation tube (12) and an inside surface of the catalytic tube (10),Means for introducing reagents (15) located in the upper portion of the chamber (1),Means for introducing the catalyst (16) located in the upper portion of the chamber (1),Means for heating the catalytic tube (10) arranged in the lower portion of the chamber (1), and in which the catalytic tube (10) comprises, in its upper portion above the catalyst (13), a reduced cross section of passage section (17) for the reagents for promoting heat exchange between the reagents and the resultant gas. 2. A chamber according to claim 1, in which the means that promote heat exchange between the reagents and the gas that is produced comprising a passage reduction tube (14) that is placed against the inside surface of the catalytic tube (10) so as to form said reduced cross section of the passage section (17) for the reagents between the passage reduction tube (14) and the internal evacuation tube (12). 3. A chamber according to claim 2, in which the thickness of the passage reduction tube (14) is defined so that the surface of its inside wall is arranged at a distance of between 1 mm and 40 mm from the outside surface of the internal evacuation tube (12). 4. A chamber according claim 3, in which the passage reduction tube (14) comprises a channel (18) that connects the means for introducing the catalyst (16) to the catalytic tube (10). 5. A chamber according to claim 2, in which the passage reduction tube (14) comprises a channel (18) that connects the means for introducing the catalyst (16) to the catalytic tube (10). 6. A chamber according to claim 5 comprising heating means composing a combustion chamber (20) that comprises at its base an air injector tube (21) and an inflammable gas, an internal structure (23) that is arranged in the injector tube (21) at the junction with the chamber (20), a tap nozzle (24) that is arranged in the chamber (20) above the internal structure (23), a grid (25) for distribution of the air/gas mixture that is arranged above the tap nozzle (24), a porous material (26) that is arranged above the distribution grid (25), and a second grid (37) above the porous material to initiate the combustion. 7. A chamber according to claim 5, in which the catalytic tube (10) is arranged in an additional tube (28), and the distance between the outside surface of the catalytic tube (10) and the additional tube (28) is between 1 mm and 40 mm. 8. A chamber according to claim 1 comprising heating means comprising a combustion chamber (20) that comprises at its base an air injector tube (21) and an inflammable gas, an internal structure (23) that is arranged in the injector tube (21) at the junction with the chamber (20), a tap nozzle (24) that is arranged in the chamber (20) above the internal structure (23), a grid (25) for distribution of the air/gas mixture that is arranged above the tap nozzle (24), a porous material (26) that is arranged above the distribution grid (25), and a second grid (37) above the porous material to initiate the combustion. 9. A chamber according to claim 8, in which the distribution grid (25) has a porosity of 30%. 10. A chamber according to claim 9, in which the porous material is a cordierite monolith of 400 cpsi. 11. A chamber according to claim 8, in which the catalytic tube (10) is arranged in an additional tube (28), and the distance between the outside surface of the catalytic tube (10) and the additional tube (28) is between 1 mm and 40 mm. 12. A chamber according to claim 1, in which the catalytic tube (10) is arranged in an additional tube (28), and the distance between the outside surface of the catalytic tube (10) and the additional tube (28) is between 1 mm and 40 mm. 13. A chamber according to claim 12, in which a heat-insulating material (2) is arranged between the additional tube (28) and the wall of the chamber (1). 14. A chamber according to claim 1 whose diameter is between 50 mm and 10 m. 15. A steam-reforming process comprising providing a device according to functioning as a reactor-exchanger and conducting a reforming reaction therein. 16. A process according to claim 15, in which synthesis gas is evacuated at a temperature that is less than 600° C. 17. A process according to claim 15, in which reagents are preheated to a temperature that is greater than 350° C.
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이 특허에 인용된 특허 (4)
Szydlowski Donald F. (Ellington CT) Suljak George T. (Vernon CT), Compact chemical reaction vessel.
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