Catalyst composition useful in the catalytic reduction of sulfur compound contained in a gas stream and a method of making and using such composition
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01D-053/56
B01J-023/00
출원번호
US-0398535
(2012-02-16)
등록번호
US-8609051
(2013-12-17)
발명자
/ 주소
Massie, Stephen Neil
출원인 / 주소
Shell Oil Company
대리인 / 주소
Stewart, Charles W.
인용정보
피인용 횟수 :
0인용 특허 :
9
초록▼
Disclosed is a composition useful in the hydrolysis of sulfur compounds that are contained in a gas stream. The composition comprises alumina, a group VI metal component and a group VIII metal component. The composition has a pore structure such that a large percentage of its total pore volume is co
Disclosed is a composition useful in the hydrolysis of sulfur compounds that are contained in a gas stream. The composition comprises alumina, a group VI metal component and a group VIII metal component. The composition has a pore structure such that a large percentage of its total pore volume is contained within the pores having a pore diameter greater than 10,000 angstroms.
대표청구항▼
1. A method of making a catalyst composition useful in the catalytic reduction of sulfur compounds contained in a gas stream, wherein said method comprises: incorporating into a formed alumina particle a group VI metal component in an amount in the range upwardly to 20 wt. % based on the metal compo
1. A method of making a catalyst composition useful in the catalytic reduction of sulfur compounds contained in a gas stream, wherein said method comprises: incorporating into a formed alumina particle a group VI metal component in an amount in the range upwardly to 20 wt. % based on the metal component being in the oxide form and the total weight of the catalyst composition, and a group VIII metal component in an amount in the range upwardly to 10 wt. % based on the metal component being in the oxide form and the total weight of the catalyst composition, wherein said formed alumina particle comprises alumina having more than 10% of its total pore volume that is contained within the pores having a pore diameter greater than 10,000 Å, and having more than 10% and less than 70% of the total pore volume that is contained within pores having a diameter of less than 70 Å, to thereby provide an intermediate; and calcining said intermediate to thereby provide said catalyst composition. 2. A method as recited in claim 1, wherein said alumina has more than 15% of its total pore volume that is contained within the pores having a pore diameter greater than 10,000 Å; wherein more than 50% of said alumina is in the form of η-alumina; and wherein less than 60% of the total pore volume of said catalyst composition is contained within the pores of said catalyst composition having a pore diameter less than 70 Å. 3. A method as recited in claim 1, wherein said alumina particle comprises alumina balls formed from an alumina powder by a disk-pan agglomerator. 4. A method as recited in claim 3, wherein said alumina balls have a nominal diameter between 1.5 mm and 15 mm. 5. A method as recited in claim 3, wherein said alumina balls are formed from a powder of an alumina predecessor, selected from the group consisting of hydragillite, bayerite, boehmite, pseudoboehmite, and a hydrated alumina. 6. A method as recited in claim 1, wherein said alumina particle of said catalyst composition is selected from the group consisting of ρ-alumina, χ-alumina, η-alumina, λ-alumina, κ-alumina, θ-alumina, δ-alumina, and α-alumina. 7. A method as recited in claim 6, wherein at least 50% of said catalyst composition comprises η-alumina. 8. A method as recited in claim 7, wherein at least 75% of said catalyst composition comprises η-alumina. 9. A method as recited in claim 8, wherein at least 90% of said catalyst composition comprises η-alumina. 10. A method as recited in claim 1, wherein either or both of said group VI metal component and said group VIII metal component are incorporated into said alumina particle through an incipient wetness impregnation method. 11. A method as recited in claim 10, wherein said incipient wetness impregnation method uses an impregnation solution comprising a metal compound selected from the group consisting of group VIII metal acetates, group VIII metal carbonates, group VIII metal nitrates, group VIII metal hydroxides, and group VIII metal sulfates. 12. A method as recited in claim 11, wherein said metal compound has a concentration between 0.01 moles per liter and 100 moles per liter. 13. A method as recited in claim 10, wherein said wetness impregnation method uses an impregnation solution comprising a metal compound selected from the group consisting of ammonium heptamolybdate, and ammonium dimolybdate. 14. A method as recited in claim 13, wherein said metal compound has a concentration between 0.01 moles per liter and 100 moles per liter. 15. A method as recited in claim 1, wherein said alumina particle, before said calcining step, is dried at a drying temperature between 75° C. and 250° C. 16. A method as recited in claim 1, wherein said calcining step occurs at a temperature between 300° C. and 800° C. 17. A method as recited in claim 1, wherein said alumina has more than 25% of its total pore volume that is contained within the pores having a pore diameter greater than 10,000 Å°. 18. A method as recited in claim 17, wherein the ratio of the total pore volume that is contained in pores having a pore diameter greater than 10,000 Å to the total pore volume that is contained in pores having a pore diameter less than 70 Å exceeds 0.6. 19. A method as recited in claim 18 wherein said alumina has more than 35% of its total pore volume that is contained within the pores having a pore diameter greater than 10,000 Å.
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이 특허에 인용된 특허 (9)
Nedez Christophe,FRX ; Legendre Olivier,FRX, Alumina-based catalyst for the treatment of gases containing sulphur compounds, use of these catalysts for the treatment and processes for treatment of the said gases.
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Kim Gwan (Olney MD) Ernest Michael V. (Catonsville MD), Doubly promoted platinum group metal catalysts for emission control and method for making the catalysts.
Zhiping Shan NL; Thomas Maschmeyer NL; Jacobus C. (Cornelis) Jansen NL, Inorganic oxides with mesoporosity or combined meso-and microporosity and process for the preparation thereof.
Gibb James L. (Woodbury MN) Laird James A. (St. Joseph WI) Lee George W. (St. Paul MN) Whitcomb William C. (Cottage Grove MN), Particulate ceramic useful as a proppant.
Kvasnikoff Georges (Monein FRX) Nougayrede Jean (Pau FRX) Philippe Andr (Orthez FRX), Process for removing sulphur compounds contained in a residual gas.
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