| 摘要 |
PROBLEM TO BE SOLVED: To provide a continuous fixed bed catalytic reactor in which the rise of ventilation resistance in a catalyst layer by deposition of a solid by-product is controlled.SOLUTION: A continuous fixed bed catalyst reactor is configured such that a catalyst is stored so that the catalyst touches an inner wall of a cylindrical catalytic reaction container set up in a heating furnace, the vicinity of one end of the treatment apparatus container is made a flow entrance of a raw material gas, and the vicinity of the other end thereof is made an outlet of a generated gas, a catalytic reaction is an endothermic reaction, a reaction is not caused below a prescribed temperature, a catalyst in which a reaction rate increases as a temperature is higher is used at the prescribed temperature or larger, a reaction heat is given chiefly by a reaction vessel surface, a generated gas is generated by a catalytic reaction of a raw material gas and a generation solid is caused at a surface of a catalyst. The continuous fixed bed catalyst reactor is characterized in that a region near the reaction vessel inner wall is made a catalyst layer in which the catalytic reaction is performed, and a center region of the reaction vessel in a thickness direction is made a porous body that is composed by a solid in which a catalytic reaction is not caused to the raw material gas, wherein the catalyst reactor is arranged such that a continuous gap is not caused between the catalyst layer and the porous body. |
