US4909164A
Expired / Lapsed
US
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Hazardous waste incinerator using cyclotron resonance plasma
Assignee: Individual
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Filing: 1988-12-08
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Granted: 1990-03-20
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Expires: 2008-12-08
Abstract
Abstract A hazardou waste incinerator which utilizes a cyclotron resonance plasma. The plasma is generated by introducing vaporized hazardous material and a feed gas into a vacuum chamber. The chamber has a magnetic field source and an electromagnetic radiation source. The cyclotron resonance plasma is produced by the resonance that occurs when the frequency of the electromagnetic radiation is set equal to that of the gyration of electrons or other charged particles in the magnetic field according to the formula: F res =(1/2π)(qB/m) hertz Where q is the charge of the electron or ion, B is the strength of the magnetic field and m is the mass of the electron or ion. The strength of the electromagnetic radiation is adjusted so that the flowing gases are ionized, forming a plasma. During the reaction, the charged particles collide with neutral particles, providing both ionization and fragmentation (the breaking up of high-mass molecules into lower mass fragments). When electromagnetic radiation is applied at the ion cyclotron resonance frequency for a particular charge-to-mass ratio, ions of this ratio are accelerated outward and colilde with other particles in the plasma. This can result in further fragmenting of these ions or other particles or the ions will be selectively expelled or collected at the outer boundaries of the reactor.
Inventors
- 👤 J. Leon Shohet
- 👤 David T. Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:03
CPC Classifications
A; A62; A62D; A62D3/00; A62D3/10; A62D3/19; A62D3/17; B; B01; B01J; B01J12/00; B01J12/002; B01J19/00; B01J19/08; B01J19/087; B01J19/088; A62D2101/00; A62D2101/20; A62D2101/22; A62D2101/40; A62D2203/00; A62D2203/10; B01J2219/00; B01J2219/08; B01J2219/0894
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
139 words
A method for decomposing to basic forms hazardous waste material comprising the steps of: vaporizing, if not already a vapor, the hazardous waste material to form a vapor, mixing said vapor with a feed gas to form a mixture, introducing said mixture into a plasma reaction chamber, subjecting said mixture in said chamber to a combination of electromagnetic radiation of a sufficient first frequency and intensity and a magnetic field of sufficient strength so as to produce from said mixture a cyclotron resonance plasma, said cyclotron resonance plasma and said vapor interacting to create products including fragments and/or ions, resulting from the ionization and fragmentation of the molecules of said vapor, monitoring said products and maintaining said cyclotron resonance plasma until desired fragments and/or ions are produced, collecting said products for further treatment and/or safe release into the environment.
Claim 2
Independent Claim
139 words
A method for decomposing to basic forms hazardous waste material comprising the steps of: vaporizing, if not already a vapor, the hazardous waste material to form a vapor, mixing said vapor with a feed gas to form a mixture, introducing said mixture into a plasma reaction chamber, subjecting said mixture in said chamber to a combination of electromagnetic radiation of a sufficient first frequency and intensity and a magnetic field of sufficient strength so as to produce from said mixture a cyclotron resonance plasma, said cyclotron resonance plasma and said vapor interacting to create products including fragments and/or ions, resulting from the ionization and fragmentation of the molecules of said vapor, monitoring said products and maintaining said cyclotron resonance plasma until desired fragments and/or ions are produced, collecting said products for further treatment and/or safe release into the environment.
Claim 3
Dependent Claim
35 words
A method as claimed in claim 1, wherein said mixture is exposed to electromagnetic radiation of at least one frequency different from said first frequency which will selectively excite ions of a specific charge-to-mass ratio.
Claim 4
Independent Claim
145 words
A method for decomposing to basic forms hazardous waste material comprising the steps of: vaporizing, if not already a vapor, the hazardous waste material to form a vapor, introducing a feed gas into a plasma generating chamber, subjecting said feed gas in said chamber to a combination of electromagnetic radiation of a sufficient first frequency and intensity and a magnetic field of sufficient strength so as to produce a cyclotron resonance plasma, introducing said plasma and said vapor into a reaction chamber so as to cause interaction between said plasma and said vapor said interaction creating products including fragments and/or ions, resulting from the ionization and fragmentation of the molecules of said vapor, monitoring said products of said interaction and maintaining said cyclotron resonance plasma until the desired fragments or ions are produced, collecting said products for further treatment and/or safe release into the environment.
Claim 5
Independent Claim
145 words
A method for decomposing to basic forms hazardous waste material comprising the steps of: vaporizing, if not already a vapor, the hazardous waste material to form a vapor, introducing a feed gas into a plasma generating chamber, subjecting said feed gas in said chamber to a combination of electromagnetic radiation of a sufficient first frequency and intensity and a magnetic field of sufficient strength so as to produce a cyclotron resonance plasma, introducing said plasma and said vapor into a reaction chamber so as to cause interaction between said plasma and said vapor said interaction creating products including fragments and/or ions, resulting from the ionization and fragmentation of the molecules of said vapor, monitoring said products of said interaction and maintaining said cyclotron resonance plasma until the desired fragments or ions are produced, collecting said products for further treatment and/or safe release into the environment.
Claim 6
Dependent Claim
38 words
A method as claimed in claim 3, wherein said plasma and said vapor are exposed to electromagnetic radiation of at least one frequency different from said first frequency which will selectively excite ions of a specific charge-to-mass ratio.
Claim 7
Independent Claim
152 words
An apparatus for decomposing to basic forms hazardous waste material comprising: a means for vaporizing, if not already a vapor, hazardous waste material to form a vapor; a means for mixing said vapor with a feed gas to form a mixture; a plasma reaction chamber having means for producing within said chamber a magnetic field; an electromagnetic radiation source for introducing into said chamber electromagnetic radiation, a means for introducing said mixture into said chamber, said electromagnetic radiation having a sufficient first frequency and intensity and said magnetic field having sufficient strength to in combination cause in the mixture a cyclotron resonance of sufficient intensity to produce a cyclotron resonance plasma, which interacts with said vapor to create reaction products, said chamber having a means for monitoring the reaction products so that the reaction may be terminated and the reaction products expelled from said chamber when the desired reaction products are produced.
Claim 8
Independent Claim
152 words
An apparatus for decomposing to basic forms hazardous waste material comprising: a means for vaporizing, if not already a vapor, hazardous waste material to form a vapor; a means for mixing said vapor with a feed gas to form a mixture; a plasma reaction chamber having means for producing within said chamber a magnetic field; an electromagnetic radiation source for introducing into said chamber electromagnetic radiation, a means for introducing said mixture into said chamber, said electromagnetic radiation having a sufficient first frequency and intensity and said magnetic field having sufficient strength to in combination cause in the mixture a cyclotron resonance of sufficient intensity to produce a cyclotron resonance plasma, which interacts with said vapor to create reaction products, said chamber having a means for monitoring the reaction products so that the reaction may be terminated and the reaction products expelled from said chamber when the desired reaction products are produced.
Claim 9
Dependent Claim
54 words
An apparatus for decomposing to basic forms hazardous waste material as claimed in claim 5, wherein said plasma reaction chamber includes at least a second electromagnetic radiation source for introducing into said chamber electromagnetic radiation of a second frequency different from said first frequency which will selectively excite ions of a specific charge-to-mass ratio.
Claim 10
Dependent Claim
24 words
An apparatus for decomposing to basic forms hazardous waste material as claimed in claim 6, further including a means to collect selectively excited ions.
Claim 11
Dependent Claim
21 words
An apparatus for decomposing to basic forms hazardous waste material as claimed in claim 5, further comprising a hydrochloric acid scrubber.
Claim 12
Independent Claim
172 words
An apparatus for decomposing to basic forms hazardous waste material comprising: a means for vaporizing, if not already a vapor, the hazardous waste material to form a vapor; a plasma generator having an electromagnetic source of sufficient frequency and intensity to generate a plasma from a feed gas; a plasma reaction chamber having means for producing within said chamber a magnetic field; means for introducing said plasma and said vapor into said plasma reaction chamber, an electromagnetic radiation source for introducing into said chamber electromagnetic radiation, said electromagnetic radiation having a sufficient first frequency and intensity and the magnetic field produced by said means having sufficient strength to in combination with the electromagnetic radiation cause in said plasma and said vapor a cyclotron resonance of sufficient intensity to produce a cyclotron resonance plasma, which creates reaction products, said chamber having a means for monitoring the reaction products of the cyclotron resonance plasma so that the reaction may be terminated and the products expelled from said chamber when the desired products are produced.
Claim 13
Independent Claim
172 words
An apparatus for decomposing to basic forms hazardous waste material comprising: a means for vaporizing, if not already a vapor, the hazardous waste material to form a vapor; a plasma generator having an electromagnetic source of sufficient frequency and intensity to generate a plasma from a feed gas; a plasma reaction chamber having means for producing within said chamber a magnetic field; means for introducing said plasma and said vapor into said plasma reaction chamber, an electromagnetic radiation source for introducing into said chamber electromagnetic radiation, said electromagnetic radiation having a sufficient first frequency and intensity and the magnetic field produced by said means having sufficient strength to in combination with the electromagnetic radiation cause in said plasma and said vapor a cyclotron resonance of sufficient intensity to produce a cyclotron resonance plasma, which creates reaction products, said chamber having a means for monitoring the reaction products of the cyclotron resonance plasma so that the reaction may be terminated and the products expelled from said chamber when the desired products are produced.
Claim 14
Dependent Claim
54 words
An apparatus for decomposing to basic forms hazardous waste material as claimed in claim 9, wherein said plasma reaction chamber includes at least a second electromagnetic radiation source for introducing into said chamber electromagnetic radiation of a second frequency different from said first frequency which will selectively excite ions of a specific charge-to-mass ratio.
Claim 15
Dependent Claim
24 words
An apparatus for decomposing to basic forms hazardous waste material as claimed in claim 10, further including a means to collect selectively excited ions.
Claim 16
Dependent Claim
21 words
An apparatus for decomposing to basic forms hazardous waste material as claimed in claim 9, further comprising a hydrochloric acid scrubber.
Claim 17
Dependent Claim
30 words
An apparatus for decomposing to basic forms hazardous waste material as claimed in claim 5, wherein said means for producing within said chamber a magnetic field are magnetic field coils.
Claim 18
Dependent Claim
30 words
An apparatus for decomposing to basic forms hazardous waste material as claimed in claim 9, wherein said means for producing within said chamber a magnetic field are magnetic field coils.
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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) | 1993-03-19 | 1993-09-18 | 1994-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-03-19 | 1997-09-18 | 1998-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-03-19 | 2001-09-18 | 2002-03-20 | $7700.00 | Window Closed / Lapsed |