METHOD FOR DETACHING CATALYST UNIT, AND CATALYTIC REACTOR

A method for detaching a catalyst unit according to one embodiment involves detaching a catalyst unit that is accommodated in a reactor casing of a catalytic reactor, wherein the method comprises a step in which, when the catalyst unit is detached from the reactor casing, which is configured so as to assume a cylindrical shape extending in the vertical direction and so that a gas at a gauge pressure of 0.2 MPa or higher is introduced into the interior of the reactor casing, the catalyst unit is passed through a gas flow passage opening that is formed in the top of the reaction casing. 本发明的一个实施方式的催化剂单元的拆装方法，是收纳于催化反应器的反应器框体中的催化剂单元的拆装方法，其中，具备如下工序，对于呈现沿垂直方向延伸的圆筒形状，使表压力下为0.2MPa以上的压力的气体导入内部而构成的所述反应器框体，拆装所述催化剂单元时，使所述催化剂单元通过形成于所述反应器框体的顶部的气体的流通口。