US4752364A
Expired / Lapsed
US
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Method for treating organic waste material and a catalyst/cocatalyst composition useful therefor
Assignee: Delphi Research Inc
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Filing: 1986-05-19
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Granted: 1988-06-21
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Expires: 2006-05-19
Abstract
Abstract A catalyst/cocatalyst composition of matter is useful in electrolytically treating organic waste material. Use of the catalyst/cocatalyst composition causes the reaction rate to increase, and causes the anode potential and the energy required for the reaction to decrease. An electrolyte, including the catalyst/cocatalyst composition, and a reaction medium composition further including organic waste material are also described.
Inventors
- 👤 Patrick M. Dhooge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:29
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/46; C02F1/461; C02F1/467; C02F1/4672; C25; C25B; C25B1/00; C25B1/01; C25B1/02; C25B1/50; C25C; C25C1/00; C02F1/4676; C02F1/4678; C02F1/72; C02F1/725; C02F2101/00; C02F2101/30; C02F2201/00; C02F2201/46; C02F2201/461; C02F2201/46105; C02F2201/46115; C02F2201/46155; Y; Y02; Y02P; Y02P10/00; Y02P10/20
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
57 words
A method for gasifying organic waste which comprises: combining organic waste material with electrolyte, conducting an electrocatalytic reaction between the organic waste material and the electrolyte, and maintaining an electrochemical potential across an anode and a cathode in an electrochemical cell containing the electrolyte, the electrolyte containing a catalyst combination of (a) electrocatalyst and (b) homogeneous cocatalyst.
Claim 2
Independent Claim
57 words
A method for gasifying organic waste which comprises: combining organic waste material with electrolyte, conducting an electrocatalytic reaction between the organic waste material and the electrolyte, and maintaining an electrochemical potential across an anode and a cathode in an electrochemical cell containing the electrolyte, the electrolyte containing a catalyst combination of (a) electrocatalyst and (b) homogeneous cocatalyst.
Claim 3
Dependent Claim
26 words
A method of claim 1 wherein the electrocatalyst is a member selected from the group consisting of cerium (4+) complex, iron (3+) complex, bromine and iodine.
Claim 4
Dependent Claim
47 words
A method of claim 1 wherein the homogeneous cocatalyst is a member selected from the group consisting of platinum (4+) ion complex, ruthenium (3+) ion complex, rhodium (3') ion complex, nickel (2+) ion complex, cobalt (2+) ion complex, palladium (2+) ion complex and vanadium (5+) oxide complex.
Claim 5
Dependent Claim
26 words
A method of claim 3 wherein the electrocatalyst is a member selected from the group consisting of cerium (4+) complex, iron (3+) complex, bromine and iodine.
Claim 6
Dependent Claim
21 words
A method of claim 1 comprising admixing the organic waste material with the electrolyte and catalyst composition in the electrochemical cell.
Claim 7
Dependent Claim
22 words
A method of claim 1 comprising separating the anode from the cathode in the electrochemical cell by interposing an ion-specific membrane therebetween.
Claim 8
Dependent Claim
22 words
A method of claim 1 comprising separating the anode from the cathode in the electrochemical cell by interposing a semi-permeable membrane therebetween.
Claim 9
Dependent Claim
53 words
A method of claim 1 comprising treating the organic waste material in a tank, circulating electrolyte solution containing the catalyst combination in reduced form to the electrochemical cell for reoxidation of the electrocatalyst and homogeneous cocatalyst, and recirculating the electrolyte containing electrocatalyst and homogeneous cocatalyst to the tank for treating organic waste material.
Claim 10
Dependent Claim
22 words
A method of claim 8 comprising separating the anode from the cathode in the electrochemical cell by interposing an ion-specific membrane therebetween.
Claim 11
Dependent Claim
22 words
A method of claim 8 comprising separating the anode and the cathode in the electrochemical cell by interposing a semipermeable membrane therebetween.
Claim 12
Dependent Claim
18 words
A method of claim 8 comprising dissolving the catalyst combination in its reduced form in the electrolyte solution.
Claim 13
Dependent Claim
15 words
A method of claim 1 which is carried out at 0° C. to 500° C.
Claim 14
Dependent Claim
34 words
A method of claim 1 wherein the anode is constructed of a material selected from the group consisting of platinum, platinum-doped carbon, platinum-clad titanium, niobium, graphite, reticulated vitreous carbon and platinum-plated reticulated vitreous carbon.
Claim 15
Dependent Claim
34 words
A method of claim 1 wherein the cathode is constructed of a material selected from the group consisting of platinum, platinum plated reticulated vitreous carbon, platinum-doped carbon, platinum-clad titanium, niobium, nickel and nickel-doped carbon.
Claim 16
Dependent Claim
26 words
A method of claim 1 wherein the anode is maintained at an operating potential of +0.5 to +1.5 volts, versus that of the normal hydrogen electrode.
Claim 17
Dependent Claim
15 words
A method of claim 1 comprising treating the organic waste material in the electrochemical cell.
Claim 18
Dependent Claim
36 words
A method of claim 1 wherein the catalyst combination increases the reaction rate by an amount greater than that attributable to the additive effect of said electrocatalyst and said homogeneous cocatalyst, when each is used alone.
Claim 19
Dependent Claim
39 words
A method of claim 1 wherein the catalyst composition decreases the activation energy of the reaction by an amount greater than that attributable to the additive effect of said electrocatalyst and said homogeneous cocatalyst, when each is used alone.
Claim 20
Dependent Claim
14 words
A method of claim 6 wherein the ion-specific membrane is a cation specific membrane.
Claim 21
Dependent Claim
14 words
A method of claim 9 wherein the ion-specific membrane is a cation specific membrane.
Claim 22
Dependent Claim
85 words
A process for gasifying organic waste which comprises combining organic waste material with electrolyte containing a catalyst combination comprising (a) an electrocatalyst and (b) a homogeneous cocatalyst, and maintaining an electrochemical potential across an anode and a cathode in an electrochemical cell containing the electrolyte and the catalyst combination, the process being effected at a reaction rate, at a given temperature, which is attributable to the catalyst combination and which is greater than the sum of catalytic effects of respective components of said catalyst combination.
Claim 23
Dependent Claim
85 words
A process for gasifying organic waste which comprises combining organic waste material with electrolyte containing a catalyst combination comprising (a) an electrocatalyst and (b) a homogeneous cocatalyst, and maintaining an electrochemical potential across an anode and a cathode in an electrochemical cell containing the electrolyte and the catalyst combination, the process being effected at a reaction rate, at a given temperature, which is attributable to the catalyst combination and which is greater than the sum of catalytic effects of respective components of said catalyst combination.
Claim 24
Dependent Claim
87 words
A process for gasifying organic waste which comprises combining organic waste material with electrolyte containing a catalyst combination comprising (a) an electrocatalyst and (b) a homogeneous cocatalyst, and maintaining an electrochemical potential across an anode and a cathode in an electrochemical cell containing the electrolyte and the catalyst combination, wherein, at a givven temperature, obtained reaction activation energy required to oxidize the organic waste material is decreased a greater amount by the catalyst combination than by the combined catalytic effects of each component of said catalyst combination.
Claim 25
Dependent Claim
87 words
A process for gasifying organic waste which comprises combining organic waste material with electrolyte containing a catalyst combination comprising (a) an electrocatalyst and (b) a homogeneous cocatalyst, and maintaining an electrochemical potential across an anode and a cathode in an electrochemical cell containing the electrolyte and the catalyst combination, wherein, at a givven temperature, obtained reaction activation energy required to oxidize the organic waste material is decreased a greater amount by the catalyst combination than by the combined catalytic effects of each component of said catalyst combination.
References Cited (Backward Citations)
US2433871A
Cited
US4105755A
Cited
US4279710A
Cited
US4235863A
Cited
US4268303A
Cited
US4222826A
Cited
US4269678A
Cited
US4212735A
Cited
US4274926A
Cited
US4182662A
Cited
US4412893A
Cited
US4311569A
Cited
US4341608A
Cited
US4395316A
Cited
US4389288A
Cited
US4457824A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1991-06-21 | 1991-12-21 | 1992-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1995-06-21 | 1995-12-21 | 1996-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1999-06-21 | 1999-12-21 | 2000-06-21 | $7700.00 | Window Closed / Lapsed |