US3881430A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-stage incinerator
Assignee: Phillips Petroleum Co
•
Filing: 1973-12-03
•
Granted: 1975-05-06
•
Expires: 1993-12-03
Abstract
Abstract Incineration of waste products such as hydrocarbon oils or similar products which are difficult to combust is accomplished in a two-stage incinerator including a first stage vaporization zone with burner and forced air supply and a catalyst material. Communication is provided between the first stage vaporization zone and a second stage combustion zone with burner and forced air supply.
Inventors
- 👤 Howard M Katz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:53
CPC Classifications
F; F23; F23G; F23G5/00; F23G5/08; F23G5/14; F23G5/16; F23G7/00; F23G7/05; F23G2202/00; F23G2202/60; F23G2203/00; F23G2203/50; Y; Y10; Y10S; Y10S588/00; Y10S588/90
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
97 words
A two-stage contiguous incinerator comprising: a. a first stage comprising a vaporization zone, at least one first burner, at least one forced air supply, inlet for waste materials, outlet for gaseous products, b. a bed of catalyst within said vaporization zone, c. a second stage comprising a combustion zone, at least one second burner, at least one second forced air supply, entrance for receiving gaseous products from said first stage, outlet for combusted gaseous products from said second stage, d. connecting conduit for conducting vaporous products from said first stage to said second stage by confined means.
Claim 2
Dependent Claim
97 words
A two-stage contiguous incinerator comprising: a. a first stage comprising a vaporization zone, at least one first burner, at least one forced air supply, inlet for waste materials, outlet for gaseous products, b. a bed of catalyst within said vaporization zone, c. a second stage comprising a combustion zone, at least one second burner, at least one second forced air supply, entrance for receiving gaseous products from said first stage, outlet for combusted gaseous products from said second stage, d. connecting conduit for conducting vaporous products from said first stage to said second stage by confined means.
Claim 3
Independent Claim
84 words
A method of incinerating waste products comprising the steps of: a. vaporizing vaporizable components of said waste products in a first stage zone in the presence of a fluidized bed of cracking catalyst, b. conducting said vaporized components from said step (a) by confined means to a second stage, c. oxidatively combusting said vaporized components in said second stage in the presence of excess oxygen at an elevated temperature, and d. exhausting the products of oxidative combustion from said step (c) to the atmosphere.
Claim 4
Independent Claim
84 words
A method of incinerating waste products comprising the steps of: a. vaporizing vaporizable components of said waste products in a first stage zone in the presence of a fluidized bed of cracking catalyst, b. conducting said vaporized components from said step (a) by confined means to a second stage, c. oxidatively combusting said vaporized components in said second stage in the presence of excess oxygen at an elevated temperature, and d. exhausting the products of oxidative combustion from said step (c) to the atmosphere.
References Cited (Backward Citations)
US3119378A
Cited
US3306236A
Cited
US3589313A
Cited
US3759036A
Cited
US3680500A
Cited
US3702595A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |