| 摘要 |
PURPOSE:To prevent excessive rise of catalytic reaction temp. by pressurizing gas separated through gas-liquid separation with a circulation gas compressor, and introducing it from the upper ends of annular spaces of respective pipes packed with a granular solid catalyst. CONSTITUTION:Central pipes 19 are positioned at the centers of a plurality of reaction pipes 11. The reaction pipes 11 are fitted to the tube plates 14, 15 of the upper and lower parts, and the upper ends of the central pipes 19 are fitted to a partition plate 18 and the lower ends thereof are closed with end covers 21. A granular solid catalyst 12 is packed in the reaction pipes 11. Gas produced by a steam reforming method or the like is introduced into the central pipes 19 as replenishment gas 1 of a reactor 7. The reactor having the following structure is obtained wherein the ratio of CO, CO2 to H2 can be made smaller in comparison with a conventional method in case of bringing circulated nonreactive gas 4 having a low-concn. of methanol into contact with the catalyst 12 packed in the reaction pipes 11. |
