Patent ID: 9713800
Date: 2017-07-25
CPC Classifications: B01J,C07C,Y10T

Claim:
1. A multi-tubular reactor comprising a cylindrical shell, a plurality of reaction tubes located in the shell, and a disk-and-doughnut type baffle, characterized in that the reaction tubes are arranged so as to be in a triangular zigzag arrangement having units, each of which has three neighboring reaction tubes as one single unit, wherein the central axes of these three reaction tubes are located at three summits of a virtual equilateral triangle, respectively, one or more of the reaction tubes is/are a temperature-measuring reaction tube(s) provided with a thermometer, and a line through a central axis of the temperature-measuring reaction tube and a central axis of the shell forms an angle from 0 to 15 degree with a line through the central axis of the temperature-measuring reaction tube and a central axis of at least one adjacent reaction tube next to the temperature-measuring reaction tube, in a cross section of the reactor perpendicular to the central axis of the shell.