| abstract |
This method uses a heat exchange reactor, which is internally provided with a reaction tube, and produces (meth)acrolein and/or (meth)acrylic acid by means of an oxidation reaction of raw materials supplied to the reaction tube while circulating a heat medium to outside of the reaction tube. In the longitudinal direction of the reaction tube, the reaction tube has i catalyst layers having different catalyst fill amounts per unit volume, wherein i is an integer greater than or equal to 2, and the aforementioned oxidation reaction satisfies formula (1). (1) … ξ ≤ 0.275 (mol*K*k-1*W-1), given Equation (AAA). |