| 摘要 |
PURPOSE:To provide the title reformer so designed that the working life of a reforming catalyst is calculated from the temperature measurements at plural positions for the catalyst in the longer direction of a reforming reaction tube and the cumulative amount of raw materials charged into the reformer, thereby making a proper catalyst replacement and carrying out accurate product quality control. CONSTITUTION:Raw materials including methanol and steam are passed through a reforming reaction tube 12 packed with a reforming catalyst 11. A heating medium is passed between this reaction tube 12 and an outer cylinder 13, and based on catalyst temperature detected by a thermosensor 9A equipped at a protective tube 16, the circulating amount of the heating medium is regulated through a regulating valve 6 to carry out a reforming reaction. In this case, a plurality of thermosensor 9 are arranged at regular intervals in the protective tube 16 along the longer direction of the reaction tube 12 to indirectly detect the temperature at each layer of the reforming catalyst 11. Also integrator 20 is installed to cumulatively calculate the amount of the raw materials to be reformed charged into the reformer 1. From the above temperatures detected and the cumulative amount calculated, the working life of the catalyst 11 is predicted using an operating equipment 18. |
