Patent JPS589882A successfully refreshed from Google Patents.
Patent US6043983A successfully refreshed from Google Patents.
Patent US4383983A successfully refreshed from Google Patents.
US4383983A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for the removal of carbon or carbon compounds from a waste stream
Assignee: Honeywell UOP LLC
•
Filing: 1982-01-21
•
Granted: 1983-05-17
•
Expires: 2002-01-21
Abstract
Abstract A method for the removal of carbon or carbon compounds from a waste stream generated in an unsupported slurry catalyst process utilized for the hydroconversion of heavy hydrocarbonaceous black oil which stream comprises vanadium sulfide, nickel sulfide and carbon or carbon compounds is disclosed. The carbon or carbon compound is removed by contacting the waste stream with sulfur dioxide at oxidizing conditions to yield a solid residue which contains metal sulfides.
Inventors
- 👤 Peter Urban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 16:17
CPC Classifications
C; C01; C01B; C01B17/00; C01B17/02; C01B17/06; C01B32/00; C01B32/40; C01B32/70; C01B32/72; C10; C10G; C10G2300/00; C10G2300/10; C10G2300/107
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
89 words
A method for the removal of carbon or carbon compounds from a waste stream formed in an unsupported slurry catalyst process utilized for the hydroconversion of heavy hydrocarbonaceous black oil which stream comprises vanadium sulfide, nickel sulfide and carbon or carbon compounds and which method comprises contacting said waste stream at oxidizing conditions with sulfur dioxide in an amount from about 1 to about 5 times the stoichiometric amount required to oxidize said carbon or carbon compounds to produce a high BTU gas containing carbon disulfide and carbon monoxide.
Claim 2
Independent Claim
89 words
A method for the removal of carbon or carbon compounds from a waste stream formed in an unsupported slurry catalyst process utilized for the hydroconversion of heavy hydrocarbonaceous black oil which stream comprises vanadium sulfide, nickel sulfide and carbon or carbon compounds and which method comprises contacting said waste stream at oxidizing conditions with sulfur dioxide in an amount from about 1 to about 5 times the stoichiometric amount required to oxidize said carbon or carbon compounds to produce a high BTU gas containing carbon disulfide and carbon monoxide.
Claim 3
Dependent Claim
20 words
The method of claim 1 wherein said oxidizing conditions include a temperature from about 900° F. to about 2200° F.
Claim 4
Dependent Claim
18 words
The method of claim 1 wherein said oxidizing conditions include a pressure from ambient to about 1000 psig.
Claim 5
Dependent Claim
23 words
The method of claim 1 wherein elemental sulfur is present during said contacting of said waste stream with sulfur dioxide at oxidizing conditions.
Claim 6
Independent Claim
125 words
A method for the removal of carbon or carbon compounds from a waste stream formed in an unsupported slurry catalyst process utilized for the hydroconversion of heavy hydrocarbonaceous black oil which stream comprises vanadium sulfide, nickel sulfide and carbon or carbon compounds and which process comprises: (a) contacting said waste stream with sulfur dioxide at oxidizing conditions to produce a high BTU gas containing carbon disulfide and carbon monoxide; (b) contacting at least a portion of the resulting high BTU gas with an oxygen containing gas to yield a carbon oxide and a sulfur oxide-containing gas stream; and (c) contacting the carbon oxide and sulfur oxide-containing gas stream resulting from step (b) with carbon disulfide to reduce the sulfur oxide and thereby produce elemental sulfur.
Claim 7
Independent Claim
125 words
A method for the removal of carbon or carbon compounds from a waste stream formed in an unsupported slurry catalyst process utilized for the hydroconversion of heavy hydrocarbonaceous black oil which stream comprises vanadium sulfide, nickel sulfide and carbon or carbon compounds and which process comprises: (a) contacting said waste stream with sulfur dioxide at oxidizing conditions to produce a high BTU gas containing carbon disulfide and carbon monoxide; (b) contacting at least a portion of the resulting high BTU gas with an oxygen containing gas to yield a carbon oxide and a sulfur oxide-containing gas stream; and (c) contacting the carbon oxide and sulfur oxide-containing gas stream resulting from step (b) with carbon disulfide to reduce the sulfur oxide and thereby produce elemental sulfur.
Claim 8
Dependent Claim
20 words
The method of claim 5 wherein said oxidizing conditions include a temperature from about 900° F. to about 2200° F.
Claim 9
Dependent Claim
18 words
The method of claim 5 wherein said oxidizing conditions include a pressure from ambient to about 1000 psig.
Claim 10
Dependent Claim
32 words
The method of claim 5 wherein said sulfur dioxide is present in an amount from about 1 to about 5 times the stoichiometric amount required to oxidize said carbon or carbon compounds.
Claim 11
Dependent Claim
22 words
The method of claim 1 wherein elemental sulfur is present during said contacting of said waste with sulfur dioxide at oxidizing conditions.
Claim 12
Independent Claim
166 words
A method for the removal of carbon or carbon compounds from a waste stream formed in an unsupported slurry catalyst process utilized for the hydroconversion of heavy hydrocarbonaceous black oil which stream comprises vanadium sulfide, nickel sulfide and carbon or carbon compounds and which method comprises: (a) contacting said waste stream with sulfur dioxide at oxidizing conditions to produce a high BTU gas containing carbon disulfide and carbon monoxide; (b) contacting at least a portion of the resulting high BTU gas from step (a) with an oxygen-containing gas to yield a carbon oxide and a sulfur oxide-containing gas stream; (c) hydrolyzing at least a portion of the resulting high BTU gas from step (a) to yield a carbon oxide and a hydrogen sulfide-containing gas stream; and (d) reacting at least a portion of the carbon oxide and sulfur oxide-containing gas stream from step (b) with at least a portion of the carbon oxide and hydrogen sulfide-containing gas stream from step (c) to thereby produce elemental sulfur.
Claim 13
Independent Claim
166 words
A method for the removal of carbon or carbon compounds from a waste stream formed in an unsupported slurry catalyst process utilized for the hydroconversion of heavy hydrocarbonaceous black oil which stream comprises vanadium sulfide, nickel sulfide and carbon or carbon compounds and which method comprises: (a) contacting said waste stream with sulfur dioxide at oxidizing conditions to produce a high BTU gas containing carbon disulfide and carbon monoxide; (b) contacting at least a portion of the resulting high BTU gas from step (a) with an oxygen-containing gas to yield a carbon oxide and a sulfur oxide-containing gas stream; (c) hydrolyzing at least a portion of the resulting high BTU gas from step (a) to yield a carbon oxide and a hydrogen sulfide-containing gas stream; and (d) reacting at least a portion of the carbon oxide and sulfur oxide-containing gas stream from step (b) with at least a portion of the carbon oxide and hydrogen sulfide-containing gas stream from step (c) to thereby produce elemental sulfur.
Claim 14
Dependent Claim
20 words
The method of claim 10 wherein said oxidizing conditions include a temperature from about 900° F. to about 2200° F.
Claim 15
Dependent Claim
18 words
The method of claim 10 wherein said oxidizing conditions include a pressure from ambient to about 1000 psig.
Claim 16
Dependent Claim
32 words
The method of claim 10 wherein said sulfur dioxide is present in an amount from about 1 to about 5 times the stoichiometric amount required to oxidize said carbon or carbon compounds.
Claim 17
Dependent Claim
22 words
The method of claim 10 wherein elemental sulfur is present during said contacting of said waste with sulfur dioxide at oxidizing conditions.
References Cited (Backward Citations)
US3622498A
Cited
US3687629A
Cited
US3932595A
Cited
US3810972A
Cited
US3961035A
Cited
JPS5497598A
Cited
US4280839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |