Microfibrous entrapment of small reactive particulates and fibers for high contacting efficiency removal of contaminants from gaseous or liquid streams
First Claim
1. A filtration system comprising:
- a) a plurality of layers, each layer being reactive and including a matrix of sinter-bonded microfibers;
b) support, adsorbent or reactive particulates and/or fibers entrapped within said matrix;
c) a pre-selected reactive material impregnated into said matrix and supported by said particulates and/or fibers;
d) wherein thin sheets of the matrix with the supporting particulates, reactants, adsorbents and/or fibers and the pre-selected reactive materials impregnated therein are chemically functionalized and then stacked in a pre-defined sequence; and
e) wherein the predefined sequence has an upstream packed bed of larger diameter reactive catalyst and sorbent particulates and a downstream polishing layer of smaller diameter microfibrous entrapped reactive catalyst and sorbent particulates; and
f) wherein the filtration system removes contaminants from liquid and gaseous streams.
2 Assignments
0 Petitions
Accused Products
Abstract
A microfibrous matrix with embedded supporting particulates/fibers and chemically reactive materials is provided as a filtration system for the removal of contaminants and other harmful agents from liquid and gaseous streams. Such materials may include chemically reactive materials as high surface area carbons, zeolites, silicas, aluminas, inorganic metal oxides, polymer resins, ZnO, ZnO/Carbon, Pt/γ-Al2O3, PtCo/γ-Al2O3, ZnO/SiO2 and various other catalysts, sorbents or reactants. The invention may be used to protect the intolerant anodes and cathodes of fuel cells from damaging H2S while simultaneously aiding the selective conversion of CO to CO2 in fuel streams predominated by hydrogen, to provide a highly efficient gas and/or liquid separation and purification methodology for gas masks, building filtration systems, and/or as polishing media located downstream of traditional packed bed filtration systems.
-
Citations
15 Claims
-
1. A filtration system comprising:
-
a) a plurality of layers, each layer being reactive and including a matrix of sinter-bonded microfibers; b) support, adsorbent or reactive particulates and/or fibers entrapped within said matrix; c) a pre-selected reactive material impregnated into said matrix and supported by said particulates and/or fibers; d) wherein thin sheets of the matrix with the supporting particulates, reactants, adsorbents and/or fibers and the pre-selected reactive materials impregnated therein are chemically functionalized and then stacked in a pre-defined sequence; and e) wherein the predefined sequence has an upstream packed bed of larger diameter reactive catalyst and sorbent particulates and a downstream polishing layer of smaller diameter microfibrous entrapped reactive catalyst and sorbent particulates; and f) wherein the filtration system removes contaminants from liquid and gaseous streams. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
Specification