Patent ID: 6838064
Filing Date: 2005-01-04
Classification: B01J

Abstract:
1. An apparatus for contact reactions between different gases, comprising: a hollow body consisting of a first feeding section made of a porous material having through-pores; and a second feeding section formed to surround said first feeding section; wherein said first feeding section receives a first reactive gas, and said second feeding section receives a second reactive gas such that the first reactive gas is successively diffused toward said second feeding section via said through-pores to enable a contact reaction between the first reactive gas and the second reactive gas through said through-pores of said first feeding section; wherein a total area of end openings of said through-pores present on an outer surface of said first feeding section facing an internal surface of said second feeding section is sufficient to match an amount of the second reactive gas; and wherein each of said end openings of said through-pores has a sufficient area to show a linear velocity of diffusion of the first reactive gas at said end openings of said through-pores in an axial direction of said through-pores that is larger than a linear velocity of diffusion of the second reactive gas at said end openings of said through-pores in the opposite axial direction of said through-pores with respect to the diffusion direction of the first reactive gas.