Patent US4410421A successfully refreshed from Google Patents.
US4410421A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for nitrogen removal from hydrocarbonaceous materials
Assignee: Electric Power Research Institute
•
Filing: 1982-02-08
•
Granted: 1983-10-18
•
Expires: 2002-02-08
Abstract
Abstract Hydrocarbonaceous material is contacted with particulate coal to cause said coal to sorb a substantial portion of the basic nitrogen compounds contained in said hydrocarbonaceous material.
Inventors
- 👤 Linda Atherton
- 👤 Conrad J. Kulik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:04
CPC Classifications
C; C10; C10G; C10G25/00; C10G25/003
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
64 words
A process for removing basic nitrogen heterocyclic compounds from a hydrocarbonaceous material comprising the steps of contacting particulate coal with said hydrocarbonaceous material at a temperature from about ambient to 600° F. at substantially atmospheric pressure for a period of time sufficient for said coal to sorb a substantial portion of said basic nitrogen heterocyclic compounds, and separating said coal from said hydrocarbonaceous material.
Claim 2
Dependent Claim
64 words
A process for removing basic nitrogen heterocyclic compounds from a hydrocarbonaceous material comprising the steps of contacting particulate coal with said hydrocarbonaceous material at a temperature from about ambient to 600° F. at substantially atmospheric pressure for a period of time sufficient for said coal to sorb a substantial portion of said basic nitrogen heterocyclic compounds, and separating said coal from said hydrocarbonaceous material.
Claim 3
Dependent Claim
16 words
The process according to claim 1 wherein said hydrocarbonaceous material comprises a full range coal-derived liquid.
Claim 4
Dependent Claim
16 words
The process according to claim 1 wherein said period of time is less than 180 minutes.
Claim 5
Dependent Claim
14 words
The process according to claim 3 wherein said period of time is 60 minutes.
Claim 6
Dependent Claim
13 words
The process according to claim 4 wherein said temperature is about 300° F.
Claim 7
Dependent Claim
12 words
The process according to claim 1 wherein said hydrocarbonaceous material comprises petroleum.
Claim 8
Dependent Claim
14 words
The process according to claim 1 wherein said hydrocarbonaceous material comprises a petroleum-derived liquid.
Claim 9
Dependent Claim
14 words
The process according to claim 1 wherein said hydrocarbonaceous material comprises oil shale-derived material.
Claim 10
Dependent Claim
13 words
The process according to claim 1 wherein said hydrocarbonaceous material comprises oil shale.
Claim 11
Dependent Claim
16 words
The process according to claim 1 wherein sad hydrocarbonaceous material comprises a byproduct of coke production.
Claim 12
Dependent Claim
16 words
The process according to claim 1 wherein said hydrocarbonaceous material comprises a byproduct of coal gasification.
Claim 13
Dependent Claim
13 words
The process according to claim 1 wherein said hydrocarbonaceous material comprises tar sands.
Claim 14
Dependent Claim
14 words
The process according to claim 1 wherein said hydrocarbonaceous material comprises tar sand-derived material.
Claim 15
Dependent Claim
19 words
The process according to claim 1 wherein said coal contacted with said hydrocarbonaceous material is substantially free of water.
Claim 16
Dependent Claim
17 words
The process according to claim 1 wherein said coal contacted with said hydrocarbonaceous material is undried coal.
Claim 17
Dependent Claim
25 words
The process according to claim 1 wherein subsequent to said separating step, the resultant hydrocarbonaceous material is again subjected to said contacting and separating steps.
References Cited (Backward Citations)
US2384315A
Cited
US3112258A
Cited
US3367862A
Cited
US3542669A
Cited
CA935189A
Cited
US4005011A
Cited
JPS53132167A
Cited
US4334976A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-10-17 | 1987-04-18 | 1987-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-10-17 | 1991-04-18 | 1991-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-10-17 | 1995-04-18 | 1995-10-18 | $7700.00 | Window Closed / Lapsed |