Patent ID: 8465648
Filing Date: 2013-06-18
Classification: B01D

Abstract:
1. A ceramic filter comprising a porous body and a separation membrane that separates a mixed fluid containing water and an organic solvent into a permeated separation water vapor, wherein the porous body has opposed end faces and an outer peripheral face, plural filtration cells extending from one end face to the other end face and forming rows, and plural water vapor collection cells extending from one end face to the other end face and forming rows, the water vapor collection cells being plugged in both the end faces, and discharge channels provided so that the water vapor collection cells communicate with an external space, wherein a ratio m/n of the number m of the rows of filtration cells to the number n of the rows of water vapor collection cells is between 1 and 4, the separation membrane is disposed on inner wall faces of the filtration cells of the porous body, a total aperture length of the discharge channels parallel to the channel direction of the water vapor collection cells is at least 10% of the length of the filtration cells, and the permeation rate per membrane area of the ceramic filter is greater than 1.8 kg/m