Patent US5427764A successfully refreshed from Google Patents.
US5427764A
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Methods of controlling flow of fluids reacting at supercritical conditions
Assignee: Chematur Engineering AB
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Filing: 1994-03-31
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Granted: 1995-06-27
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Expires: 2014-03-31
Abstract
Abstract High temperature reactions are conducted within a high pressure reaction vessel. The interior surfaces of the high pressure containment vessel are protected from the high temperature and corrosive effects of the reaction by causing the reactants to converge in a vortex which contains the highest reaction temperature within the central portions of the reactor. A toroidal reaction vessel is disclosed in which the reactants are directed into a vortex at the axis of origin of the torus by flow guides.
Inventors
- 👤 John S. Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:20
CPC Classifications
B; B01; B01J; B01J3/00; B01J3/04; B01J19/00; B01J19/02; B01J19/24; B01J19/2405; B01J3/008; B01J2219/00; B01J2219/00049; B01J2219/00051; B01J2219/00074; B01J2219/00076; B01J2219/00083; B01J2219/00087; B01J2219/00159; B01J2219/00162; B01J2219/00164; B01J2219/02; B01J2219/0204; B01J2219/025; B01J2219/18; B01J2219/185; B01J2219/19; B01J2219/194; B01J2219/1941; B01J2219/1943; B01J2219/1945; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/54; Y10; Y10S; Y10S423/00; Y10S423/09; Y10S423/11
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
108 words
A method of controlling flow of fluids reacting at supercritical water conditions comprising the steps of: (a) injecting fluid comprising water and substantially stoichiometric quantities of at least two reactants into a cylinder under pressure sufficient to approximate supercritical water conditions substantially tangentially to the inner wall of the cylinder; (b) causing said fluid to flow toward the axis of said cylinder and form an axial vortex displaced from said inner wall; (c) adding sufficient heat to said fluid to approximate supercritical water conditions and cause a chemical reaction to occur in said fluid; and (d) withdrawing fluid only from a single outlet extending into said axial vortex.
Claim 2
Independent Claim
108 words
A method of controlling flow of fluids reacting at supercritical water conditions comprising the steps of: (a) injecting fluid comprising water and substantially stoichiometric quantities of at least two reactants into a cylinder under pressure sufficient to approximate supercritical water conditions substantially tangentially to the inner wall of the cylinder; (b) causing said fluid to flow toward the axis of said cylinder and form an axial vortex displaced from said inner wall; (c) adding sufficient heat to said fluid to approximate supercritical water conditions and cause a chemical reaction to occur in said fluid; and (d) withdrawing fluid only from a single outlet extending into said axial vortex.
Claim 3
Dependent Claim
29 words
A method as set forth in claim 1 wherein the fluid injected into the cylinder is formed by simultaneously injecting the reactants into the cylinder through substantially parallel tubes.
Claim 4
Dependent Claim
31 words
A method as set forth in claim 1 wherein the fluid injected into the cylinder is formed by mixing the reactants to form a fluid which is injected into the cylinder.
Claim 5
Dependent Claim
21 words
A method as set forth in claim 1 wherein said fluid is heated by the heat of reaction of said reactants.
Claim 6
Independent Claim
103 words
A method of controlling flow of fluids reacting at supercritical water conditions comprising the steps of: (a) injecting an aqueous fluid into a cylinder under pressure sufficient to approximate supercritical water conditions substantially tangentially to the inner wall of the cylinder; (b) causing said aqueous fluid to flow toward the axis of said cylinder and form an axial vortex displaced from said inner wall; (c) adding sufficient heat to said aqueous fluid to approximate supercritical water conditions and cause a chemical reaction to occur in said fluid; and (d) withdrawing fluid from said axial vortex only through an outlet extending into said vortex.
Claim 7
Independent Claim
103 words
A method of controlling flow of fluids reacting at supercritical water conditions comprising the steps of: (a) injecting an aqueous fluid into a cylinder under pressure sufficient to approximate supercritical water conditions substantially tangentially to the inner wall of the cylinder; (b) causing said aqueous fluid to flow toward the axis of said cylinder and form an axial vortex displaced from said inner wall; (c) adding sufficient heat to said aqueous fluid to approximate supercritical water conditions and cause a chemical reaction to occur in said fluid; and (d) withdrawing fluid from said axial vortex only through an outlet extending into said vortex.
Claim 8
Dependent Claim
22 words
A method as set forth in claim 5 wherein said fluid injected in the cylinder comprises water and at least two reactants.
Claim 9
Dependent Claim
24 words
A method as set forth in claim 5 wherein said fluid injected into the cylinder comprises water containing substantially stoichiometric quantities of two reactants.
Claim 10
Dependent Claim
32 words
A method as set forth in claim 5 wherein the fluid injected into the cylinder is formed by mixing reactants and water to form a fluid which is injected into the cylinder.
Claim 11
Dependent Claim
30 words
A method as set forth in claim 5 wherein the fluid injected into the cylinder is formed by simultaneously injecting reactants and water into the cylinder through substantially parallel tubes.
Claim 12
Dependent Claim
23 words
A method as set forth in claim 5 wherein said fluid is heated by the heat of reaction of reactant in said fluid.
Claim 13
Independent Claim
102 words
A method of controlling flow of reacting fluids in an aqueous stream at supercritical water conditions comprising the steps of: (a) injecting a fluid comprising an aqueous stream containing reactants into an enclosed container tangentially to a curved wall of the container under pressure sufficient to approximate supercritical water conditions; (b) reacting at least two reactants contained in said stream with each other; (c) containing movement of said fluid to substantially spiral paths from the point of injection to form a vortex spaced from the curved walls of the container; and (d) withdrawing fluid only from an outlet extending into said vortex.
Claim 14
Independent Claim
102 words
A method of controlling flow of reacting fluids in an aqueous stream at supercritical water conditions comprising the steps of: (a) injecting a fluid comprising an aqueous stream containing reactants into an enclosed container tangentially to a curved wall of the container under pressure sufficient to approximate supercritical water conditions; (b) reacting at least two reactants contained in said stream with each other; (c) containing movement of said fluid to substantially spiral paths from the point of injection to form a vortex spaced from the curved walls of the container; and (d) withdrawing fluid only from an outlet extending into said vortex.
Claim 15
Dependent Claim
26 words
A method as set forth in claim 11 including the step of heating said fluid as it moves from the point of injection toward said vortex.
Claim 16
Dependent Claim
21 words
A method as set forth in claim 12 wherein said fluid is heated by the heat of reaction of said reactants.
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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) | 1998-06-26 | 1998-12-26 | 1999-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-06-26 | 2002-12-26 | 2003-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-06-26 | 2006-12-26 | 2007-06-27 | $7700.00 | Window Closed / Lapsed |