METHOD AND APPARATUS FOR PRODUCING ACRYLAMIDE

摘要

Provided is a technique which can easily realize the retention time of the reaction mixture in the reactor suitable for the production quantity by controlling the amount of the reaction liquid in accordance with the production quantity and thus can suppress the amount of a biocatalyst used in a method for producing acrylamide from acrylonitrile by using a biocatalyst. Provided is a method for producing acrylamide from acrylonitrile through a continuous reaction using a biocatalyst in reactors by using two or more reactors connected in series, wherein one reactor A and a reactor B connected to the reactor A on an upstream side are communicated with each other below liquid faces of reaction liquids in both reactors, and the producing method comprises controlling a liquid volume of a reaction liquid in the reactor B by controlling a level of a reaction liquid in the reactor A to be between a disposed position of a communicating port with the reactor B and a full level position.

主权项

1: A method for producing acrylamide from acrylonitrile through a continuous reaction using a biocatalyst in two or more reactors connected in series, the method comprising
controlling a liquid volume of a reaction liquid in a reactor B by controlling a level of a reaction liquid in a reactor A to be between a disposed position of a communicating port with the reactor B and a full level position, wherein the reactor B is connected to the reactor A on an upstream side, and the reactor A and the reactor B are communicated with each other below liquid faces of the reaction liquids in both reactors.