Patent US2513220A successfully refreshed from Google Patents.
Patent US4326995A successfully refreshed from Google Patents.
US4326995A
Expired / Lapsed
US
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Catalyst for hydrotreating carbonaceous liquids
Assignee: United States Department of Energy
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Filing: 1979-12-07
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Granted: 1982-04-27
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Expires: 1999-12-07
Abstract
Abstract A catalyst for denitrogenating and desulfurating carbonaceous liquid such as solvent refined coal includes catalytic metal oxides impregnated within a porous base of mostly alumina with relatively large pore diameters, surface area and pore volume. The base material includes pore volumes of 0.7-0.85 ml/g, surface areas of 200-350 m2/g and pore diameters of 85-200 Angstroms. The catalytic metals impregnated into these base materials include the oxides of Group VI metals, molybdenum and tungsten, and the oxides of Group VIII metals, nickel and cobalt, in various combinations. These catalysts and bases in combination have effectively promoted the removal of chemically combined sulfur and nitrogen within a continuous flowing mixture of carbonaceous liquid and hydrogen gas.
Inventors
- 👤 Lloyd Berg
- 👤 Frank P. McCandless
- 👤 Ronald J. Ramer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 22:14
CPC Classifications
C; C10; C10G; C10G45/00; C10G45/02; C10G45/04; C10G45/06; C10G45/08; B; B01; B01J; B01J23/00; B01J23/70; B01J23/76; B01J23/84; B01J23/85; B01J23/888; B01J23/8885; B01J35/00; B01J35/60; B01J35/61; B01J35/615; B01J35/63; B01J35/635; B01J35/64; B01J35/647
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
109 words
In a catalyst for the continuous-flow hydrogenation and denitrogenation of carbonaceous liquids produced in the solvent refining of coal containing combined sulfur of 0.2-0.8% and combined nitrogen of 0.5-1.5% by weight within carbonaceous compounds, said catalyst having a base comprising a major proportion of alumina with deposited oxides of catalytic metals, the improved combination comprising a base material that includes a surface area of about 250 m 2 /g, a pore volume of about 0.7 ml/g and an average pore diameter of 120-130 Angstroms and said deposited oxides of catalytic metal include in percent total weight 10-11% WO 3 , 2-3% NiO, 6-7% CoO and 12-13% MoO 3 .
Claim 2
Dependent Claim
109 words
In a catalyst for the continuous-flow hydrogenation and denitrogenation of carbonaceous liquids produced in the solvent refining of coal containing combined sulfur of 0.2-0.8% and combined nitrogen of 0.5-1.5% by weight within carbonaceous compounds, said catalyst having a base comprising a major proportion of alumina with deposited oxides of catalytic metals, the improved combination comprising a base material that includes a surface area of about 250 m 2 /g, a pore volume of about 0.7 ml/g and an average pore diameter of 120-130 Angstroms and said deposited oxides of catalytic metal include in percent total weight 10-11% WO 3 , 2-3% NiO, 6-7% CoO and 12-13% MoO 3 .
Claim 3
Dependent Claim
113 words
In a catalyst for the continuous-flow hydrogenation and denitrogenation of carbonaceous liquids produced in the solvent refining of coal containing combined sulfur of 0.2-0.8% and combined nitrogen of 0.5-1.5% by weight within carbonaceous compounds, said catalyst having a base comprising a major proportion of alumina with deposited oxides of catalytic metals, the improved combination comprising a base material that includes a surface area of 210-220 m 2 /g, a pore volume of 0.83-0.84 ml/g, a median pore diameter of about 161 Angstroms and an average pore diameter of 150-160 Angstroms and said deposited oxides of catalytic metals include 20-22% total weight WO 3 , 2-3% total weight NiO, and 5-6% total weight CoO.
Claim 4
Dependent Claim
113 words
In a catalyst for the continuous-flow hydrogenation and denitrogenation of carbonaceous liquids produced in the solvent refining of coal containing combined sulfur of 0.2-0.8% and combined nitrogen of 0.5-1.5% by weight within carbonaceous compounds, said catalyst having a base comprising a major proportion of alumina with deposited oxides of catalytic metals, the improved combination comprising a base material that includes a surface area of 210-220 m 2 /g, a pore volume of 0.83-0.84 ml/g, a median pore diameter of about 161 Angstroms and an average pore diameter of 150-160 Angstroms and said deposited oxides of catalytic metals include 20-22% total weight WO 3 , 2-3% total weight NiO, and 5-6% total weight CoO.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-04-26 | 1985-10-26 | 1986-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-04-26 | 1989-10-26 | 1990-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-04-26 | 1993-10-26 | 1994-04-27 | $7700.00 | Window Closed / Lapsed |