Flue gas purification process using a sorbent polymer composite material
First Claim
1. A process for removing sulfur oxides, nitric oxides, Hg vapor, and fine particulate matters from a body or stream of gas comprising the following steps:
- a. converting said sulfur oxides and nitric oxides into sulfuric acid and nitric acid on a sorbent material which is a part of a sorbent-polymer-composite (SPC) material;
b. collecting the converted sulfuric acid and nitric acid as droplets on the external surfaces of the SPC material until the droplets coalesce and run down or drip off of the external surfaces of the SPC material;
c. chemically adsorbing and fixing molecules of said Hg vapor in the SPC material; and
d. trapping said fine particles on the external surfaces of the SPC material.
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Accused Products
Abstract
Process for removing sulfur oxides, mercury vapor, and fine particulate matters from industrial flue gases that contain such pollutants. Pollutants are removed by modules, which contain microporous adsorbent (i.e., sorbent) material held within a polymer matrix. The composite material that contains the microporous absorbent material held within a polymer matrix removes sulfur oxides by converting them into high concentration sulfuric acids. SULFURIC acid produced inside the composite material is automatically expelled onto the external surfaces of the composite material and is drained into an acid reservoir together with the fine particulate mailers which are washed from the external surfaces of the composite material by the constant dripping of the sulfuric acid along the external surfaces of the composite material.
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Citations
13 Claims
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1. A process for removing sulfur oxides, nitric oxides, Hg vapor, and fine particulate matters from a body or stream of gas comprising the following steps:
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a. converting said sulfur oxides and nitric oxides into sulfuric acid and nitric acid on a sorbent material which is a part of a sorbent-polymer-composite (SPC) material; b. collecting the converted sulfuric acid and nitric acid as droplets on the external surfaces of the SPC material until the droplets coalesce and run down or drip off of the external surfaces of the SPC material; c. chemically adsorbing and fixing molecules of said Hg vapor in the SPC material; and d. trapping said fine particles on the external surfaces of the SPC material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 13)
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10. A method for removing Hg vapor from a body or stream of gas comprising the steps of:
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(a) contacting the body or stream of gas with a sorbent-polymer-composite material comprising;
(i) a sorbent material in the form of porous particles; and
(ii) a polymer material comprising at least one fluoropolymer or a copolymer or terpolymer containing at least one fluoromonomer, wherein the sorbent material is held within a matrix of the polymer material such that the particles of sorbent material are in contact with the polymer material; and(b) chemically adsorbing the Hg vapor on the porous particles, wherein the sorbent material is either untreated or has been treated with at least one chemical substance that is retained in or on the sorbent material. - View Dependent Claims (11, 12)
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Specification