US3905336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus and method for generating heat
Assignee: Foster Wheeler Inc
•
Filing: 1973-09-28
•
Granted: 1975-09-16
•
Expires: 1993-09-28
Abstract
Abstract An apparatus and method for generating heat in which a particulate fossil fuel material and a solid absorbent material are passed into a chamber and are fluidized by passing air through the chamber. The portion of fuel material entrained in the air passing through the material is directed to, and is fluidized in, a second chamber. The sulphated sorbent from the first chamber is passed to the second chamber and is desulphated therein before being passed back to the first chamber.
Inventors
- 👤 Robert L Gamble
- 👤 Richard William Bryers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:58
CPC Classifications
F; F23; F23C; F23C10/00; F23C10/002; B; B01; B01J; B01J8/00; B01J8/18; B01J8/24; B01J8/26; B01J8/28; F23C10/005; F23C6/00; F23C6/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
162 words
An apparatus for generating heat, comprising a housing, means for establishing a series of vertically aligned fluidized beds of particulate material in said housing, said material including a sulfur containing fuel and a sorbent for said sulfur, said fuel being combusted and said sorbent being sulfated in said beds, means for establishing an additional fluidized bed of particulate fuel material in said housing in vertical alignment with said series of fluidized beds, means for receiving the combustion gases from said series of beds and separating the gases from any of said particulate material entrained therein, first conduit means for passing said separated particulate material to said additional fluidized bed, second conduit means connecting each of said series of fluidized beds to said additional bed for passing the sulfated sorbent from said series of beds to said additional bed, said sulfated sorbent being desulfated in said additional bed to form a sulfur enriched gas, and means for passing said gas from said housing.
Claim 2
Independent Claim
162 words
An apparatus for generating heat, comprising a housing, means for establishing a series of vertically aligned fluidized beds of particulate material in said housing, said material including a sulfur containing fuel and a sorbent for said sulfur, said fuel being combusted and said sorbent being sulfated in said beds, means for establishing an additional fluidized bed of particulate fuel material in said housing in vertical alignment with said series of fluidized beds, means for receiving the combustion gases from said series of beds and separating the gases from any of said particulate material entrained therein, first conduit means for passing said separated particulate material to said additional fluidized bed, second conduit means connecting each of said series of fluidized beds to said additional bed for passing the sulfated sorbent from said series of beds to said additional bed, said sulfated sorbent being desulfated in said additional bed to form a sulfur enriched gas, and means for passing said gas from said housing.
Claim 3
Dependent Claim
22 words
The apparatus of claim 1 further comprising means for passing the desulfated sorbent from said additional bed to said series of beds.
Claim 4
Dependent Claim
32 words
The apparatus of claim 1 further comprising means for passing a heat exchange medium successively through said chambers in a heat exchange relation thereto to gradually raise the temperature of said medium.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |