Reaction appparatus with a heat-exchanger

Abstract

A reaction apparatus comprising a heat exchanger 5 and a reactor 1 with a heater 2 , which are enclosed in an outer casing 6 , the top of the heat exchanger 5 being connected to the reactor 1 , the other end part of the heat exchanger 5 and the bottom of the outer casing 6 being fixed to each other by a flange 4 , and a double piping 7 for introducing a gas to be treated and discharging the treated gas being connected to the other end part of the heat exchanger 5 , such that the gas passes through the heat exchanger 5 , the reactor 1 and the heat exchanger 5 during the process from introducing gas through one of the inner tube and the outer tube in the double piping to discharging the gas through the other tube, and reaction method using the apparatus. Using the apparatus of the present invention, the temperature distribution inside the reactor can be kept uniform and efficiency in energy recovery is enhanced.

1 . A reaction apparatus comprising a heat exchanger  5  and a reactor  1  with a heater  2 , which are enclosed in an outer casing  6 , the top of the heat exchanger  5  being connected to the reactor  1 , the other end part of the heat exchanger  5  and the bottom of the outer casing  6  being fixed to each other by a flange  4 , and a double piping  7  for introducing a gas to be treated and discharging the treated gas being connected to the other end part of the heat exchanger  5 , such that the gas passes through the heat exchanger  5 , the reactor  1  and the heat exchanger  5  in this order during the process from introducing gas through one of the inner tube and the outer tube in the double piping to discharging the gas through the other tube.  
     
     
         2 . The reaction apparatus as claimed in  claim 1 , wherein the heat exchanger  5  is a shell and tube-type heat exchanger.  
     
     
         3 . The reaction apparatus as claimed in  claim 1 , wherein the outer casing  6  has an eyebolt fixing part  9  on the ceiling part, thereby the outer casing  6  is detachable.  
     
     
         4 . The reaction apparatus as claimed in  claim 1 , wherein the reactor  1  has fins  13  in the inside thereof.  
     
     
         5 . The reaction apparatus as claimed in  claim 1 , wherein the fins  13  are provided inside the inner tube  7   a  in the double piping  7  and/or between the inner tube  7   a  and the outer tube  7   b  in the double piping  7 .  
     
     
         6 . The reaction apparatus as claimed in  claim 1 , comprising a mechanism where the gas to be treated is introduced through the inner tube  7   a  and discharged through the outer tube  7   b.    
     
     
         7 . The reaction apparatus as claimed in  claim 6 , wherein the outer tube  7   b  of the double piping  7  has a heat radiating plate.  
     
     
         8 . The reaction apparatus as claimed in  claim 1 , wherein the reaction apparatus is adapted to be installed horizontally and the reactor  1  with a heater  2  and the heat exchanger  5  are placed horizontally with respect to each other.  
     
     
         9 . A reaction method comprising passing a gas to be treated sequentially into one tube of the inner tube  7   a  and the outer tube  7   b  in a double piping  7 , a heat exchanger  5 , a reactor  1  with a heater  2 , the heat exchanger  5  and the other tube in the double piping  7  in this order and heating the gas to be treated by the heater  2  before the gas to be treated is introduced into the reactor  1 , thereby adjusting the temperature difference in the gas flow direction inside the reactor  1 .  
     
     
         10 . The reaction method as claimed in  claim 9 , wherein the gas to be treated is introduced through the inner tube  7   a  of the double piping  7  and discharged through the outer tube  7   b.    
     
     
         11 . The reaction method as claimed in  claim 9  or  10 , wherein the temperature difference is adjusted to 50° C. or less.