Patent US4052172A successfully refreshed from Google Patents.
US4052172A
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US
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Process for gasifying coal or other carbon containing material
Assignee: Mitsubishi Heavy Industries Ltd
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Filing: 1975-07-01
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Granted: 1977-10-04
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Expires: 1995-07-01
Abstract
Abstract A process and apparartus for gasifying coal or other carbon containing material in which at least a gas stream communicates which comprises providing a fluidizing bed reaction chamber disposed upstream and a jet-system reaction chamber disposed downstream, providing means for supplying an object of gasification such as coal and a gasifying agent in said jet-system reaction chamber, providing a dust removing device at the exit flue of said jet-system reaction chamber, said fluidizing bed reaction chamber having a system of supplying collected solid of said dust removing device, means for supplying a gasifying agent and means for taking out ashes.
Inventors
- 👤 Seiichi Shirakawa
- 👤 Koji Iwahashi
- 👤 Akio Nishi
- 👤 Keisuke Honda
- 👤 Kiyomichi Taoda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:54
CPC Classifications
C; C10; C10J; C10J3/00; C10J3/46; C10J3/54; C10J3/56; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/28; C10J3/48; C10J3/50; C10J3/503; C10J3/72; C10J3/82; C10J3/84; C10J2300/00; C10J2300/09; C10J2300/0913; C10J2300/093; C10J2300/0946; C10J2300/0953; C10J2300/0956; C10J2300/0973; C10J2300/0979; C10J2300/0983; C10J2300/0996; Y; Y02; Y02E; Y02E20/00; Y02E20/16; Y02E20/18; Y10; Y10S; Y10S48/00; Y10S48/04
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
132 words
A process for gasifying coal or other carbon containing material in which a gas stream communicates, comprising: providing a fluidizing bed reactor chamber (1-2) disposed upstream and a jet-system reaction chamber (1-1) disposed downstream with respect to said gas stream, providing means for supplying coal or other carbon containing material divided to 100-200 mesh (ASTM) and a gasifying agent selected from the group consisting of air and mixtures of air and steam (8,9) in sad jet-system reaction chamber (1-1), and providing a dust removing device (11) at the exit flue (10) of said jet-system reaction chamber (1-1), said fluidizing bed reaction chamber (1-2) having a pipe means (13) for supplying collected solid of said dust removing device (11), means for supplying said gasifying agent (17), and means for taking out ashes (23).
Claim 2
Dependent Claim
132 words
A process for gasifying coal or other carbon containing material in which a gas stream communicates, comprising: providing a fluidizing bed reactor chamber (1-2) disposed upstream and a jet-system reaction chamber (1-1) disposed downstream with respect to said gas stream, providing means for supplying coal or other carbon containing material divided to 100-200 mesh (ASTM) and a gasifying agent selected from the group consisting of air and mixtures of air and steam (8,9) in sad jet-system reaction chamber (1-1), and providing a dust removing device (11) at the exit flue (10) of said jet-system reaction chamber (1-1), said fluidizing bed reaction chamber (1-2) having a pipe means (13) for supplying collected solid of said dust removing device (11), means for supplying said gasifying agent (17), and means for taking out ashes (23).
Claim 3
Dependent Claim
30 words
A process according to claim 1 having distributor means (25) for circulating and supplying a part of said collected solid of sid dust removing device to said jet-stream reaction chamber.
Claim 4
Dependent Claim
36 words
A process according to claim 1 having means for supplying a fluidizing medium to said fluidizing bed reaction chamber and means for taking out said fluidizing medium together with ashes from said fluidizing bed reaction chamber.
Claim 5
Dependent Claim
20 words
A process according to claim 3, wherein said jet-system reaction chamber has hopper means (40) for supplying a desulfurizing agent.
Claim 6
Dependent Claim
44 words
A process according to claim 1 including rapidly carbonizing said coal or other carbon containing material in the presence of said gasifying agent and a high-temperature hot gas supplied from said fluidizing bed reaction chamber (1-2) at a temperature of 800° to 1100° C.
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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) | 1980-10-03 | 1981-04-04 | 1981-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-03 | 1985-04-04 | 1985-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-03 | 1989-04-04 | 1989-10-04 | $7700.00 | Window Closed / Lapsed |