Reactors for conducting thermochemical processes with solar heat input, and associated systems and methods
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
B01J-019/08
F24J-002/46
출원번호
US-0027181
(2011-02-14)
등록번호
US-8187550
(2012-05-29)
발명자
/ 주소
McAlister, Roy Edward
출원인 / 주소
McAlister Technologies, LLC
대리인 / 주소
Perkins Coie LLP
인용정보
피인용 횟수 :
24인용 특허 :
67
초록▼
Reactors for conducting thermochemical processes with solar heat input, and associated systems and methods. A system in accordance with a particular embodiment include a reactor having a reaction zone, a reactant source coupled in fluid in communication with the reactant zone, and a solar concentrat
Reactors for conducting thermochemical processes with solar heat input, and associated systems and methods. A system in accordance with a particular embodiment include a reactor having a reaction zone, a reactant source coupled in fluid in communication with the reactant zone, and a solar concentrator having at least one concentrator surface positionable to direct solar energy to a focal area. The system can further include an actuator coupled to the solar concentrator to move the solar concentrator relative to the sun, and a controller operatively coupled to the actuator. The controller can be programmed with instructions that, when executed, direct the actuator to position the solar concentrator to focus the solar energy on the reaction zone when the solar energy is above a threshold level, and direct the actuator to position the solar concentrator to point to a location in the sky having relatively little radiant energy to cool an object positioned at the focal area when the solar energy is below the threshold level.
대표청구항▼
1. A reactor system for processing a reactant, comprising: a reactor having a reaction zone;a reactant source coupled in fluid communication with the reaction zone of the reactor;a solar concentrator having at least one concentrator surface positionable to direct solar energy to a focal area;an actu
1. A reactor system for processing a reactant, comprising: a reactor having a reaction zone;a reactant source coupled in fluid communication with the reaction zone of the reactor;a solar concentrator having at least one concentrator surface positionable to direct solar energy to a focal area;an actuator coupled to the solar concentrator to move the solar concentrator relative to the sun; anda controller operatively coupled to the actuator, the controller being programmed with instructions that, when executed: direct the actuator to position the solar concentrator to focus the solar energy on the reaction zone when the solar energy is above a threshold level; anddirect the actuator to position the solar concentrator to point to a location in the sky having relatively little radiant energy to cool an object positioned at the focal area when the solar energy is below the threshold level. 2. The system of claim 1, further comprising a heat exchanger carrying a heat exchanger fluid, and wherein the heat exchanger is positionable at the focal area when the solar energy is below the threshold level to discharge heat from the heat exchanger fluid via the solar concentrator. 3. The system of claim 2 wherein at least one of the heat exchanger and the solar concentrator is movable relative to the other between a first configuration in which the focal area is aligned with the reaction zone and a second configuration in which the focal area is aligned with the heat exchanger. 4. The system of claim 1 wherein the reaction zone is a first reaction zone and wherein the system further includes a second reaction zone, and wherein at least one of the solar concentrator, the first reaction zone and the second reaction zone is movable to form a first configuration in which the focal area is aligned with the first reaction zone and a second configuration in which the focal area is aligned with the second reaction zone. 5. The system of claim 1, further comprising a reactant carried by the reactant source, and wherein the reactant includes a hydrogen donor having at least one of carbon, boron, nitrogen, silicon, a transition metal, and sulfur as a constituent. 6. The system of claim 1 wherein the solar concentrator includes a dish-shaped concentrator. 7. The system of claim 1 wherein the solar concentrator includes a trough-shaped concentrator. 8. The system of claim 1 wherein the solar concentrator includes a Fresnel lens. 9. A reactor system for processing a reactant, comprising: a reactor having a reaction zone;a reactant source coupled in fluid communication with the reaction zone of the reactor;a solar concentrator having at least one concentrator surface positionable to direct solar energy to a focal area;a first actuator coupled to the solar concentrator to move the solar concentrator relative to the sun;a radiation control structure positioned between the concentrator surface and the focal area, the radiation control structure having a first surface and a second surface facing away from the first surface, the first surface having a first radiant energy absorptivity and a first radiant energy emissivity, the second surface having a second radiant energy absorptivity less than the first radiant energy absorptivity and a second radiant energy emissivity greater than the first radiant energy emissivity; anda second actuator coupled to the radiation control structure to change the structure from a first configuration in which the first surface faces toward the concentrator surface, and a second configuration in which the second surface faces toward the concentrator surface. 10. The system of claim 9, further comprising: a controller operatively coupled to the first and second actuators, the controller being programmed with instructions that, when executed: direct the first actuator to position the solar concentrator to focus the solar energy on the reaction zone when the solar energy is above a threshold level;direct the second actuator to position the radiation control structure in the first configuration when the solar energy is above the threshold level;direct the first actuator to position the solar concentrator to point to a location in the sky away from the sun and having relatively little radiant energy to cool an object positioned at the focal area when the solar energy is below the threshold level; anddirect the second actuator to position the radiation control structure in the second configuration when the solar energy is below the threshold level. 11. The system of claim 10 wherein the radiation control structure includes a plurality of pivotable elements, and wherein individual pivotable elements have a first surface and a second surface facing away from the first surface. 12. The system of claim 9, further comprising a redirection component positioned proximate to the solar concentrator and the reaction zone, the redirection component having at least one movable surface positioned to receive at least a portion of the solar energy directed by the solar concentrator and redirect the portion of energy into the reaction zone. 13. The system of claim 12 wherein the redirection component includes a plurality of movable surfaces. 14. The system of claim 13 wherein the movable surfaces include reflective surfaces. 15. The system of claim 13 wherein the movable surfaces include a re-radiation component positioned to receive radiation over a first spectrum having a first peak wavelength range and re-radiate the radiation into the reaction zone over a second spectrum having a second peak wavelength range different than the first. 16. The system of claim 9, further comprising a reactant carried by the reactant source, and wherein the reactant includes a hydrogen donor having at least one of carbon, boron, nitrogen, silicon, a transition metal, and sulfur as a constituent. 17. A reactor system for processing a hydrogen donor, comprising: a reactor vessel having a reaction zone;a hydrocarbon donor source coupled in fluid communication with the reaction zone of the reactor vessel and carrying a hydrocarbon donor;a first product collector coupled to the reaction zone to receive a hydrogen-based fuel produced by dissociating the hydrogen donor at the reaction zone;a second product collector coupled to the reaction zone to receive at least one of carbon and a carbon compound produced by dissociating the hydrogen donor;a solar concentrator having at least one concentrator surface having a focal area and being positionable to direct solar energy toward the reaction zone;an actuator coupled to the solar concentrator to move the solar concentrator relative to the sun; anda controller operatively coupled to the actuator, the controller being programmed with instructions that, when executed: direct the solar concentrator to point toward the sun and focus the solar energy on the reaction zone during daylight hours; anddirect the solar concentrator to point to a location in the sky having relatively little radiation energy to cool an object positioned at the focal area after daylight hours. 18. The system of claim 17, wherein the reaction zone includes a first reaction zone, the actuator includes a first actuator and wherein the system further includes a second reaction zone, and wherein the system further comprises: a heat exchanger carrying a heat exchanger fluid in fluid communication with the second reaction zone; anda second actuator coupled to at least one of the heat exchanger and the solar concentrator; and wherein the controller is programmed with further instructions that, when executed: direct the second actuator to align the focal area with the first reaction zone during daylight hours; anddirect the second actuator to align the focal area with the heat exchanger after daylight hours.
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