| 摘要 |
PURPOSE:To simplify a converter and to reduce the cost by incorporating an inner tube packed with a catalyst for high temp. use and an outer tube packed with a catalyst for low temp. use into a single apparatus and by combining the apparatus with a heat exchanger for cooling. CONSTITUTION:Gas for conversion contg. gaseous CO, together with steam, is fed into an inner tube 31 from a gas inlet 37, and it is exchaused from a gas outlet 37' through an outer tube 32. In the inner tube 31, a cooling medium is fed into a group of cooling ipes from the bottom to cool catalyst 34 for the conversion reaction of CO at a high temp., and it is discharged from the top. In the outer tube 32, a cooling medium is fed into a group of cooling pipes from the top to cool a catalyst 35 for the conversion reaction of CO at a low temp., and it is discharged from the bottom. The outer tube 32 is kept at a lower temp. than the inner tube 31.
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