Removal of atmospheric pollutants from gas, related apparatus, processes and uses thereof
View Patent ↗Methods related generally to the removal of atmospheric pollutants from the gas phase, are provided, as well as related apparatus, processes and uses thereof. A single-stage air scrubbing apparatus is provided that includes at least one reaction vessel, at least one introduction duct, and a turbulence component, wherein a residence time is sufficient to allow the conversion of at least one atmospheric pollution compound to at least one other compound, molecule or atom. In some embodiments, the at least one atmospheric pollution compound comprises nitrogen oxide, sulfur oxide or a combination thereof. Additionally, methods of removing atmospheric pollution compounds from a waste gas stream are disclosed that include introducing a waste gas stream and at least one additional gas stream, mist stream, liquid stream or combination thereof into a single-stage air scrubbing apparatus at a flow rate sufficient to allow for conversion of the at least one atmospheric pollution compound.
1. A method for scrubbing a waste gas, comprising:
introducing into a reaction vessel a waste gas containing at least one component selected from the group consisting of a sulfur oxide and a nitrogen oxide;
introducing chlorine dioxide into the reaction vessel; and
introducing turbulence into a mixture of the waste gas and the chlorine dioxide, whereby the chlorine dioxide reacts with the component, such that the component is converted into at least one other compound, molecule or atom, wherein turbulence is introduced by passing at least one of the waste gas and the chlorine dioxide through a plurality of tubes arranged in a parallel configuration, wherein each tube is positioned at an angle of from 5 to 95 degrees off an axis of the reaction vessel, and wherein each tube is less than 0.5 meters in length.
2. The method of claim 1 , wherein each tube is from 2 inches in length to 0.5 meters in length.
3. The method of claim 1 , wherein each tube is from 2 inches in length to 12 inches in length.
4. The method of claim 1 , wherein each tube is from 6 inches in length to 7 inches in length.
5. The method of claim 1 , wherein each tube has a diameter of from about 0.5 inches to about 2 inches.
6. The method of claim 1 , wherein each tube has a diameter of about 0.5 inches or less.
7. The method of claim 1 , wherein each tube has a diameter of about 2 inches or more.
8. The method of claim 1 , wherein a diameter of each tube is uniform.
9. The method of claim 1 , wherein the angle is from 5 to 85 degrees.
10. The method of claim 1 , wherein the angle is from 5 to 45 degrees.
11. The method of claim 1 , wherein the angle is from 5 to 30 degrees.
12. The method of claim 1 , wherein the angle is from 25 to 30 degrees.
13. The method of claim 1 , wherein the plurality of tubes is arranged in a spiral pattern.
14. The method of claim 1 , further comprising a sheath configured to contain the plurality of tubes.
15. The method of claim 14 , wherein the sheath is a pipe fitted in a flow path of the reaction vessel.
16. The method of claim 15 , wherein the pipe forms a portion of a length of the reaction vessel.
17. The method of claim 14 , wherein the sheath has a diameter sufficiently small to be inserted into the reaction vessel but sufficiently large so as to provide a snug fit in the reaction vessel to encourage the passage of substantially all gas in the reaction vessel therethrough.
18. The method of claim 1 , wherein the plurality of tubes comprises a bundle of polyvinylchloride pipe lengths in a sheath fabricated from a large diameter polyvinylchloride pipe.
19. The method of claim 1 , wherein each of the tubes is fabricated from a material configured to tolerate exposure to the waste gas and to chlorine dioxide.