Method of treating tobacco mainstream smoke and smoking tool

Abstract

There is provided a smoking tool that is capable of selectively removing carbon monoxide in tobacco mainstream smoke. The smoking tool includes a catalyst packed section packed with an oxidation catalyst capable of selectively removing carbon monoxide relative to nicotine among components of the tobacco mainstream smoke, into which tobacco mainstream smoke is introduced, and a heater heating the catalyst packed section.

1 . A method of treating tobacco mainstream smoke, comprising:
 introducing tobacco mainstream smoke into a heated catalyst packed section packed with an oxidation catalyst containing copper oxide; and   selectively removing carbon monoxide relative to nicotine among components of the tobacco mainstream smoke.   
   
   
       2 . The method according to  claim 1 , wherein the catalyst packed section is heated to a temperature in a range of 200 to 350° C. 
   
   
       3 . A smoking tool, comprising:
 a catalyst packed section packed with an oxidation catalyst capable of selectively removing carbon monoxide relative to nicotine among components of the tobacco mainstream smoke, into which tobacco mainstream smoke is introduced; and   a heating means for heating the catalyst packed section.   
   
   
       4 . The smoking tool according to  claim 3 , wherein the oxidation catalyst is selected from the group consisting of Hopcalite (registered trademark), CuO/ZnO, CuO/ZnO 2  and CuO/CeO 2 . 
   
   
       5 . The smoking tool according to  claim 3 , wherein the heating means heats the catalyst packed section to a temperature in a range of 200 to 350° C. 
   
   
       6 . The smoking tool according to  claim 5 , wherein the heating means heats the catalyst packed section to a temperature in a range of 200 to 280° C. 
   
   
       7 . The smoking tool according to  claim 3 , comprising a cooling section which cools the tobacco mainstream smoke and/or a filter material which collects tar at a rear section of the catalyst packed section.