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US3843339A Expired / Lapsed US ⏱️ 0.0 years remaining

Process for fluidized combustion of plastics

Assignee: National Institute of Advanced Industrial Science and Technology
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Filing: 1973-09-20
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Granted: 1974-10-22
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Expires: 1993-09-20
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Abstract

Abstract 1. A PROCESS FOR THE DISPOSED OF A POLYOLEFINIC PLASTIC WHICH COMPRISES DIVIDING SAID POLYOLEFINIC PLASTIC INTO AT LEAST TWO PORTIONS AND SUBJECTING A PORTION OF THE POLYOLEFINIC PLASTIC IN CONJUCTION WITH A FLUIDIZING MEDIUM TO FLUIDIZED COMBUSTION BY MEANS OF AIR OF AN AMOUNT EXCEEDING THE AMOUNT THEORETICALLY REQUIRED FOR COMBUSTION OF SAID PLASTIC THEREBY GASIFYING THE PLASTIC, SIMULTANEOUSLY FUSING THE REMAINING PORTION OF THE POLYOLEFINIC PLASTIC WITH THE HEAT GENERATED BY SAID FLUIDIZED COMBUSTION AND, WHILE MAINTAINING THE FUSED POLYOLEFINIC PLASTIC IN A LIQUID FORM BY UTILIZING THE HEAT OF THE AFOREMENTIONED COMBUSTION, FLUIDIZING AND PARTIALLY OXIDIZING THE FUSED POLYOLEFINIC PLASTIC IN CONJUCTION WITH A FLUIDIZING MEDIUM BY MEANS OF AN AMOUNT OF OXYGEN INSUFFICIENT FOR COMPLETE COMBUSTION THEREBY PRODUCING A HYDROCARBON GAS AND COOLING SAID GAS FOR THEREBY OBTAINING HYDROCARBON OILS AND HYDROCARBON GASES USEFUL AS INDUSTRIAL RAW MATERIALS.

Inventors

  • 👤 K Saito

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 15:31
CPC Classifications
C; C10; C10B; C10B49/00; C10B49/02; C10B49/04; C10B49/08; C10B49/10; C10B53/00; C10B53/07; C10G; C10G1/00; C10G1/02; F; F23; F23G; F23G5/00; F23G5/30; F23G7/00; F23G7/12; F23G2203/00; F23G2203/50; F23G2203/503; Y; Y02; Y02P; Y02P20/00; Y02P20/141; Y02P20/143

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 141 words
A PROCESS FOR THE DISPOSED OF A POLYOLEFINIC PLASTIC WHICH COMPRISES DIVIDING SAID POLYOLEFINIC PLASTIC INTO AT LEAST TWO PORTIONS AND SUBJECTING A PORTION OF THE POLYOLEFINIC PLASTIC IN CONJUCTION WITH A FLUIDIZING MEDIUM TO FLUIDIZED COMBUSTION BY MEANS OF AIR OF AN AMOUNT EXCEEDING THE AMOUNT THEORETICALLY REQUIRED FOR COMBUSTION OF SAID PLASTIC THEREBY GASIFYING THE PLASTIC, SIMULTANEOUSLY FUSING THE REMAINING PORTION OF THE POLYOLEFINIC PLASTIC WITH THE HEAT GENERATED BY SAID FLUIDIZED COMBUSTION AND, WHILE MAINTAINING THE FUSED POLYOLEFINIC PLASTIC IN A LIQUID FORM BY UTILIZING THE HEAT OF THE AFOREMENTIONED COMBUSTION, FLUIDIZING AND PARTIALLY OXIDIZING THE FUSED POLYOLEFINIC PLASTIC IN CONJUCTION WITH A FLUIDIZING MEDIUM BY MEANS OF AN AMOUNT OF OXYGEN INSUFFICIENT FOR COMPLETE COMBUSTION THEREBY PRODUCING A HYDROCARBON GAS AND COOLING SAID GAS FOR THEREBY OBTAINING HYDROCARBON OILS AND HYDROCARBON GASES USEFUL AS INDUSTRIAL RAW MATERIALS.
Claim 2
Dependent Claim 141 words
A PROCESS FOR THE DISPOSED OF A POLYOLEFINIC PLASTIC WHICH COMPRISES DIVIDING SAID POLYOLEFINIC PLASTIC INTO AT LEAST TWO PORTIONS AND SUBJECTING A PORTION OF THE POLYOLEFINIC PLASTIC IN CONJUCTION WITH A FLUIDIZING MEDIUM TO FLUIDIZED COMBUSTION BY MEANS OF AIR OF AN AMOUNT EXCEEDING THE AMOUNT THEORETICALLY REQUIRED FOR COMBUSTION OF SAID PLASTIC THEREBY GASIFYING THE PLASTIC, SIMULTANEOUSLY FUSING THE REMAINING PORTION OF THE POLYOLEFINIC PLASTIC WITH THE HEAT GENERATED BY SAID FLUIDIZED COMBUSTION AND, WHILE MAINTAINING THE FUSED POLYOLEFINIC PLASTIC IN A LIQUID FORM BY UTILIZING THE HEAT OF THE AFOREMENTIONED COMBUSTION, FLUIDIZING AND PARTIALLY OXIDIZING THE FUSED POLYOLEFINIC PLASTIC IN CONJUCTION WITH A FLUIDIZING MEDIUM BY MEANS OF AN AMOUNT OF OXYGEN INSUFFICIENT FOR COMPLETE COMBUSTION THEREBY PRODUCING A HYDROCARBON GAS AND COOLING SAID GAS FOR THEREBY OBTAINING HYDROCARBON OILS AND HYDROCARBON GASES USEFUL AS INDUSTRIAL RAW MATERIALS.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-10-21 1978-04-22 1978-10-22 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-10-21 1982-04-22 1982-10-22 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-10-21 1986-04-22 1986-10-22 $7700.00 Window Closed / Lapsed

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