Remote additive application
View Patent ↗The present disclosure is directed to the application of additives to a feed material at a location remote from an industrial facility using the feed material.
1. A method, comprising:
at first location, receiving a treated feed material comprising a combustible, mercury-containing feed material and a halogen-containing additive; and
transporting the treated feed material to a second location, the second location being located discretely from the first location, wherein the treated feed material is combusted at the second location to generate a waste gas comprising mercury and the halogen, the halogen enabling removal of at least most of the mercury from the waste gas.
2. The method of claim 1 , wherein the halogen is one or more of iodine and bromine, wherein the feed material is coal, wherein the first location is a mine site, wherein the second location is a utility site, wherein the halogen is added in addition to any halogen occurring natively in the feed material, and wherein the transportation of the treated feed material is by one or more of rail car, truck, barge and ship.
3. The method of claim 1 , wherein the halogen-containing additive is in the form of an agglomerate comprising a binder, a halogen compound, and a substrate.
4. The method of claim 3 , wherein the substrate is a portion of the feed material.
5. The method of claim 3 , wherein the treated feed material comprises a dust control agent to stabilize the halogen-containing additive during transportation.
6. The method of claim 3 , wherein the treated feed material comprises a freeze control agent to stabilize the halogen-containing additive during transportation.
7. A method, comprising:
receiving, at an industrial facility, a treated feed material comprising a combustible, mercury-containing feed material and a halogen-containing additive, wherein the treated feed material was transported to the industrial facility from a remote location located discretely from the industrial facility; and
combusting, by the industrial facility, the treated feed material to generate a waste gas comprising mercury and the halogen, the halogen enabling removal of at least most of the mercury from the waste gas.
8. The method of claim 7 , wherein the halogen is one or more of iodine and bromine, wherein the feed material is coal, wherein the remote location is a mine site, wherein the industrial facility is a utility power plant, wherein the halogen is added substantially above the level of native halogen in the feed material, and wherein the transportation of the treated feed material is by one or more of rail car, truck, barge and ship.
9. The method of claim 7 , wherein the halogen-containing additive is in the form of an agglomerate comprising a binder, a halogen compound, and a substrate.
10. The method of claim 9 , wherein the substrate is a portion of the feed material.
11. The method of claim 9 , wherein the treated feed material comprises a dust control agent to stabilize the halogen-containing additive during transportation.
12. The method of claim 9 , wherein the treated feed material comprises a freeze control agent to stabilize the halogen-containing additive during transportation.
13. The method of claim 1 , wherein the halogen comprises one or more of a halide and inter-halogen compound, wherein a selected halogen in the additive is at least about 50% above a level of the selected halogen natively in the treated feed material, wherein the selected halogen is one or more of iodine and bromine, and wherein the treated feed material, before additive addition, natively comprises from about 1 to about 100 ppm of the selected halogen.
14. The method of claim 1 , wherein the first location is one or more of a transload facility located between a mine site and the second location and a coal blending location between the mine site and the second location and wherein at least about 75% of the additive in the treated feed material is contacted with the treated feed material at one or more locations remote from the second location.
15. The method of claim 7 , wherein the halogen comprises one or more of a halide and inter-halogen compound, wherein a selected halogen in the additive is at least about 25% above a level of the selected halogen natively in the treated feed material, wherein the selected halogen is one or more of iodine and bromine, and wherein the treated feed material, before additive addition, natively comprises from about 5 to about 100 ppm of the selected halogen.
16. The method of claim 7 , wherein the first location is one or more of a transload facility located between a mine site and the industrial facility and a coal blending location between the mine site and the industrial facility and wherein at least about 75% of the additive in the treated feed material is contacted with the treated feed material at one or more locations remote from the industrial facility.
17. A method, comprising:
receiving, at an industrial facility, a treated feed material comprising a combustible, mercury-containing feed material and a halogen-containing additive, wherein the treated feed material was transported to the industrial facility from a remote location located discretely from the industrial facility; and
combusting, by the industrial facility, the treated feed material to generate a waste gas comprising mercury and the halogen, the halogen enabling removal of at least most of the mercury from the waste gas, wherein the halogen is one or more of iodine and bromine, wherein the feed material is coal, wherein the remote location is a mine site, wherein the industrial facility is a utility power plant, and wherein the treated feed material, before additive addition, natively comprises from about 5 to about 100 ppm of the selected halogen.
18. The method of claim 17 , wherein the transportation of the treated feed material is by one or more of rail car, truck, barge and ship.
19. The method of claim 17 , wherein the halogen-containing additive is in the form of an agglomerate comprising a binder, a halogen compound, and a substrate, wherein the substrate is a portion of the feed material, wherein the treated feed material comprises one or more of a dust control agent to stabilize the halogen-containing additive during transportation and a freeze control agent to stabilize the halogen-containing additive during transportation.
20. The method of claim 17 , wherein the halogen comprises one or more of a halide and inter-halogen compound, wherein a selected halogen in the additive is at least about 50% above a level of the selected halogen natively in the treated feed material, wherein the selected halogen is one or more of iodine and bromine, and wherein the treated feed material, before additive addition, natively comprises from about 1 to about 100 ppm of the selected halogen.