Patent ID: 6762139
Filing Date: 2004-07-13
Classification: B01J,Y10T

Abstract:
A flexible adsorbent-loaded filter comprising a flexible support web and attached adsorbent particles, wherein the adsorbent loaded filter is flexible and has open filter cells which are defined by the support web and the attached adsorbent particles, and are random in size and orientation through the length and depth of the filter, the support web is formed of substantially nonlinear filaments that randomly intersect and have an average diameter of from 0.05 to 2.0 mm, are coated with an adhesive or binder on all or a portion of the filaments surface area with the absorbent particles are adhered to the filaments through the entire support web, and the adsorbent particles largest average cross-sectional dimension is smaller than the average diameter of the pores of the support web which pore size is an average from 1 to 10 mm without the absorbent particles wherein when the flexible adsorbent loaded filter is flexed about a radius of curvature of 20 mm, the percent increases in pressure drop is less than 100 percent when measured at a face velocity of 0.25 m/s.