| 摘要 |
PROBLEM TO BE SOLVED: To provide an article for removing COwhich is cordierite-made flow-through type substrate and capable of desorbing CO2 at low temperature.SOLUTION: There is provided an article containing a flow-through type substrate having an open passage constructed by a porous wall and containing alumina and COabsorber which is arranged on the flow-through type substrate and inserted into the porous wall of the flow-through type substrate. There is provided an article, where the porous wall of the flow-through type substrate has 50% of porosity and surface area of over 200 m/g. There is provided an article, where the alumina is gamma alumina, or active alumina (containing a transition layer of alumina but no alpha alumina) or a combination thereof and the COabsorber contains polyethylene imine. A method for removing COfrom gas is a method having a process for contacting gas containing COwith the article at a temperature up to 40°C.SELECTED DRAWING: Figure 1 |
