Reactor filled with solid particle and gas-phase catalytic oxidation with the reactor

Abstract

A shell-and tube reactor including at least one reaction tube with a measuring means, substantially same solid particles being filled in the reaction tubes with or without the measuring means, a length of the filled solid particle layer, and a pressure drop thereof while passing a gas through the reaction tube, per each reaction tube, being substantially the same, respectively. By measuring the temperature of the catalyst particle layer, such a temperature as a representative can be gasped.

What is claimed is:  
     
         1 . A shell-and tube reactor comprising at least one reaction tube with a measuring means, substantially the same solid particles being filled in the reaction tubes with or without the measuring means, a length of the filled solid particle layer, and a pressure drop thereof while passing a gas through the reaction tube, per each reaction tube, being substantially the same, respectively.  
     
     
         2 . A reactor according to  claim 1 , wherein the measuring means is a thermometer and/or pressure measuring device.  
     
     
         3 . A reactor according to  claim 1  further comprising a swing-preventing means to be attached to the measuring means.  
     
     
         4 . A reactor according to  claim 1 , wherein the solid particles are two more types of catalyst particles or a combination of catalyst particles and inert particles.  
     
     
         5 . A reactor according to  claim 1 , wherein the reactor has plural of chambers horizontally partitioned against the direction of the reaction tubes in the reactor with a tube sheet, a heat medium being circulated in the chamber independently.  
     
     
         6 . A reactor according to  claim 1 , wherein a filling time of the solid particles into the reaction tube with the measuring means is longer than that of the solid particles into the reaction tube without measuring means.  
     
     
         7 . A method for producing (meth)acrylic acid and/or (meth)acrolein by means of a gas-phase catalytic oxidation reaction employing the reactor according to claim  1 .