| 摘要 |
1,164,263. Packing elements for fluid contact towers. E. I. DU PONT DE NEMOURS & CO. 15 Nov., 1966 [16 Nov., 1965], No. 51215/66. Headings B1F, B1R and B1T. [Also in Division F4] A packing element for use in fluid contact columns, reaction vessels and like apparatus consists of a body made from a ceramic material of honeycomb structure and cut so that no face of the body is parallel to the walls of the cells. The ceramic material may be a straight-cell or a slant-cell structure and the elements may have the shape of a triangular or rectangular prism or a triangular or rectangular pyramid or truncated pyramid or a cylinder or cone or truncated cone. The size of the elements may be between # and 250 c. ins., preferably between 1 and 10 c. ins., the cell size may be between 1/32 and 2 ins., preferably between 1/16 and ¥ in., and the proportion of open area of the ceramic material may be between 40 and 95% preferably between 70 and 90%. The ceramic material may be of titania, alumina, spinel. cordierite or mullite, the latter being preferred when the element is to be coated with a catalyst. The packing elements may be used in gas/ liquid contact columns, in liquid/liquid extracttion columns, dust extraction apparatus, heat exchangers and gaseous phase catalytic reaction vessels. |
