Sorbent bodies comprising activated carbon, processes for making them, and their use
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-045/00
B01D-047/00
B01J-023/00
B01J-023/40
출원번호
US-0599896
(2008-05-13)
등록번호
US-8741243
(2014-06-03)
국제출원번호
PCT/US2008/006082
(2008-05-13)
§371/§102 date
20091112
(20091112)
국제공개번호
WO2008/143831
(2008-11-27)
발명자
/ 주소
Gadkaree, Kishor Purushottam
Johnson, Benedict Yorke
Kuang, Pei Qiong
Liu, Anbo
Shi, Youchun
출원인 / 주소
Corning Incorporated
대리인 / 주소
Homa, Joseph M.
인용정보
피인용 횟수 :
2인용 특허 :
67
초록▼
Sorbent bodies comprising activated carbon, processes for making them, and methods of using them. The sorbent bodies can be used to remove toxic elements from a fluid, such as from a gas stream. For instance, the sorbent bodies may be used to remove elemental mercury or mercury in an oxidized state
Sorbent bodies comprising activated carbon, processes for making them, and methods of using them. The sorbent bodies can be used to remove toxic elements from a fluid, such as from a gas stream. For instance, the sorbent bodies may be used to remove elemental mercury or mercury in an oxidized state from a coal combustion flue gas.
대표청구항▼
1. A sorbent body comprising: an activated carbon matrix comprising nanoscale pores having a diameter of less than or equal to 10 nm and microscale pores having a diameter of higher than 10 nm;sulfur, in any oxidation state, as elemental sulfur or in a chemical compound or moiety comprising sulfur;
1. A sorbent body comprising: an activated carbon matrix comprising nanoscale pores having a diameter of less than or equal to 10 nm and microscale pores having a diameter of higher than 10 nm;sulfur, in any oxidation state, as elemental sulfur or in a chemical compound or moiety comprising sulfur; anda metal catalyst selected from sulfides of: vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, niobium, molybdenum, silver, tungsten and lanthanoids;wherein the metal catalyst is homogenously distributed throughout the activated carbon matrix and is present on at least 50% of the wall surfaces of the nanoscale pores. 2. The sorbent body according to claim 1, wherein sulfur is essentially homogeneously distributed throughout the activated carbon matrix. 3. The sorbent body according to claim 1, wherein at least a portion of the metal catalyst is chemically bound to at least a portion of the sulfur. 4. The sorbent body according to claim 1, wherein at least a portion of the sulfur is chemically bound to at least a portion of carbon in the activated carbon matrix. 5. The sorbent body according to claim 1, wherein the metal catalyst will promote the removal of one or more of arsenic, cadmium, mercury and selenium from a fluid in contact with the sorbent body. 6. The sorbent body of claim 1 wherein the sorbent body has an initial mercury removal efficiency of at least 90% with respect to RFG1, RFG2 and/or RFG3. 7. The sorbent body of claim 1 wherein the sorbent body has a mercury removal capacity of at least 0.05 mg·g−1 with respect to RFG1, RFG2 and/or RFG3. 8. The according to claim 1 wherein the sulfur is elemental sulfur. 9. The sorbent body according to claim 1, which is in the form of a honeycomb monolith. 10. The sorbent body according to claim 1 wherein the metal catalyst is present on at least 75% of the wall surfaces of the nanoscale pores. 11. The sorbent body according to claim 1 wherein the sorbent body comprises an alkaline earth hydroxide. 12. A sorbent body comprising: an activated carbon matrix comprising nanoscale pores having a diameter of less than or equal to 10 nm and microscale pores having a diameter of higher than 10 nm;sulfur, in any oxidation state, as elemental sulfur or in a chemical compound or moiety comprising sulfur; anda metal catalyst selected from sulfides of: vanadium, chromium, manganese, iron, cobalt, nickel, copper, zinc, niobium, molybdenum, silver, tungsten and lanthanoids;wherein the metal catalyst and the sulfur are homogenously distributed throughout the activated carbon matrix, the metal catalyst and the sulfur both being present on at least 50% of the wall surfaces of the nanoscale pores. 13. A sorbent body according to claim 12, wherein at least a portion of the metal catalyst is chemically bound to at least a portion of the sulfur. 14. A sorbent body according to claim 12, wherein at least a portion of the sulfur is chemically bound to at least a portion of carbon in the activated carbon matrix. 15. A sorbent body according to claim 12 wherein the sorbent body comprises an alkaline earth hydroxide. 16. The sorbent body according to claim 12, which is in the form of a honeycomb monolith. 17. The sorbent body according to claim 12 wherein the metal catalyst is present on at least 75% of the wall surfaces of the nanoscale pores. 18. The sorbent body according to claim 12 wherein the sulfur is present on at least 75% of the wall surfaces of the nanoscale pores. 19. The sorbent body according to claim 9, wherein the honeycomb monolith has a plurality of channels. 20. The sorbent body according to claim 19, wherein a portion of the channels are plugged at one end of the sorbent body and another portion of the channels are plugged at the opposite end of the sorbent body. 21. The sorbent body according to claim 16, wherein the honeycomb monolith has a plurality of channels. 22. The sorbent body according to claim 21, wherein a portion of the channels are plugged at one end of the sorbent body and another portion of the channels are plugged at the opposite end of the sorbent body.
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