System for Capturing Carbon Dioxide and Other Gases
20230158450 · 2023-05-25
Inventors
Cpc classification
B01D53/1493
PERFORMING OPERATIONS; TRANSPORTING
B01D53/1412
PERFORMING OPERATIONS; TRANSPORTING
B01D2259/10
PERFORMING OPERATIONS; TRANSPORTING
B01D53/76
PERFORMING OPERATIONS; TRANSPORTING
B01D53/18
PERFORMING OPERATIONS; TRANSPORTING
International classification
Abstract
Disclosed are devices and methods for capturing carbon dioxide and other gases. All gas-capturing systems employ chemical fluid/media for binding purposes. One system delivers chemicals in droplet form, while another system delivers feed gas in bubble form. All systems employ an admixing chamber for confining and uniting particles of matter, as well as streaming means for placing gas in confinement. The droplet-based delivery system packetizes chemicals using an atomizing device, while the bubble-based delivery system packetizes gaseous feedstock using metering means, rerouting means, perturbation means, and stream-dividing means. The droplet and bubble systems feature common or unique advantages relating to chemical flow, surface area, and/or progressive cycling. These advantages increase the efficiency of gas-capturing devices in general and decarbonizing devices in particular.
Claims
1. An apparatus for capturing gas using packetized droplets of chemical fluid, said apparatus comprising: an admixing chamber for confining and uniting select particles of matter; streaming means for placing gas in confinement; chemical fluid for binding confined gas; and droplet delivery means for creating chemical droplets within said admixing chamber and thereby exposing said chemical droplets to confined gas.
2. The apparatus of claim 1, wherein said streaming means comprises pressure from natural wind current.
3. The apparatus of claim 1, wherein said streaming means comprises pressure from one or more canisters.
4. The apparatus of claim 1, wherein said streaming means comprises pressure from one or more flues.
5. The apparatus of claim 1, wherein said streaming means comprises pressure from one or more compressors.
6. The apparatus of claim 1, wherein said streaming means comprises pressure from one or more fans.
7. The apparatus of claim 1, wherein said streaming means comprises pressure from one or more vacuums.
8. The apparatus of claim 1, wherein the gas contained within the admixing chamber comprises ambient air.
9. The apparatus of claim 1, wherein the gas contained within the admixing chamber comprises flue exhaust.
10. The apparatus of claim 1, wherein the gas contained within the admixing chamber comprises carbon dioxide.
11. The apparatus of claim 1, wherein said chemical fluid is capable of binding carbon dioxide.
12. The apparatus of claim 1, wherein said droplet delivery means comprises one or more atomizers.
13. The apparatus of claim 1, said apparatus further comprising an internal reservoir for chemical storage.
14. The apparatus of claim 1, said apparatus further comprising an external reservoir for chemical storage.
15. The apparatus of claim 1, said apparatus further comprising aerosol-blocking means for preventing chemical aerosols from escaping into the environment.
16. The apparatus of claim 15, wherein said aerosol-blocking means comprises one or more filters.
17. The apparatus of claim 15, wherein said aerosol-blocking means comprises one or more membranes.
18. The apparatus of claim 15, wherein said aerosol-blocking means comprises one or more condensers.
19. The apparatus of claim 15, wherein said aerosol-blocking means comprises one or more liquid barriers.
20. A method for capturing gas using packetized droplets of chemical fluid, said method comprising: confining gas within an admixing chamber; exposing confined gas to droplets of chemical fluid, said chemical fluid being capable of binding confined gas; collecting said chemical fluid; and processing said chemical fluid to remove gas bound thereto.
21. An apparatus for capturing gas using packetized bubbles of gaseous feedstock, said apparatus comprising: an admixing chamber for confining and uniting select particles of matter; streaming means for placing gas in confinement; chemical media for binding confined gas; and bubble delivery means for creating gas bubbles within said admixing chamber and thereby exposing said gas bubbles to confined chemical media.
22. The apparatus of claim 21, wherein said streaming means comprises pressure from one or more canisters.
23. The apparatus of claim 21, wherein said streaming means comprises pressure from one or more flues.
24. The apparatus of claim 21, wherein said streaming means comprises pressure from one or more compressors.
25. The apparatus of claim 21, wherein said streaming means comprises pressure from one or more fans.
26. The apparatus of claim 21, wherein the gas contained within the admixing chamber comprises ambient air.
27. The apparatus of claim 21, wherein the gas contained within the admixing chamber comprises flue exhaust.
28. The apparatus of claim 21, wherein the gas contained within the admixing chamber comprises carbon dioxide.
29. The apparatus of claim 21, wherein said chemical media is capable of binding carbon dioxide.
30. The apparatus of claim 21, wherein said bubble delivery means comprises one or more electronically controlled valves for enabling periodic or intermittent gas injection.
31. The apparatus of claim 21, wherein said bubble delivery means comprises one or more mechanically controlled valves for enabling periodic or intermittent gas injection.
32. The apparatus of claim 21, wherein said bubble delivery means comprises one or more contoured or finned screens for rerouting and compartmentalizing traversing gas.
33. The apparatus of claim 21, wherein said bubble delivery means comprises one or more multi-output ducts for rerouting and compartmentalizing traversing gas.
34. The apparatus of claim 21, .wherein said bubble delivery means comprises one or more rotary paddles for creating perturbation waves within confined chemical media.
35. The apparatus of claim 21, wherein said bubble delivery means comprises one or more sound emitters for creating perturbation waves within confined chemical media.
36. The apparatus of claim 21, wherein said bubble delivery means comprises multiple intake ports for dividing feed gas into individual injection streams and thereby enabling parallel streaming of injected feed gas.
37. The apparatus of claim 21, wherein said bubble delivery means comprises one or more output-splitting devices for dividing feed gas into individual injection streams and thereby enabling parallel streaming of injected feed gas.
38. A method for capturing gas using packetized bubbles of gaseous feedstock, said method comprising: confining chemical media within an admixing chamber; exposing confined chemical media to bubbles of gas, said gas being capable of binding to confined chemical media; collecting said chemical media; and processing said chemical media to remove gas bound thereto.
Description
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Numerous drawings are supplied. Two of those drawings depict prior art, while the remaining drawings inclusively illustrate miscellaneous aspects of the invention.
[0025] For reference purposes,
[0026]
[0027]
[0028]
[0029]
[0030] For reference purposes,
[0031]
[0032]
[0033]
[0034]
[0035] Included within the foregoing drawings are various elements, namely, intake port 1, exhaust port 2, gas-stream trajectory 3, suspension lattice 4, chemical 5, atomizer 6, gas 7, screen 8, rotary paddle 9, sound emitter 10, perturbation wave 11, output-splitting device 12, and duct 13.
[0036] The foregoing drawings and elements are thoroughly and comprehensively discussed in the below disclosure.
DETAILED DESCRIPTION OF THE INVENTION
[0037] As indicated, the invention encompasses two discrete but related delivery systems. Both systems perform packetization functions. However, one system delivers chemical droplets, while the other system delivers gas bubbles.
[0038] A detailed description of the foregoing systems is provided below. The detailed description is divided into five subparts, designated Subparts A through E. As indicated by their headings, Subparts A and B discuss the embodiments and advantages of the droplet-based delivery system. Subparts C and D, in contrast, discuss the embodiments and advantages of the bubble-based delivery system. Finally, Subpart E provides concluding remarks concerning both delivery systems.
Subpart A
Embodiments of Droplet System
[0039] The droplet-based delivery system features numerous embodiments. All embodiments, however, comprise four common elements, namely, an admixing chamber (for confining and uniting matter); streaming means (for placing gas in confinement); chemical fluid (for binding confined gas); and an atomizing device (for creating and delivering chemical droplets within the admixing chamber). Such components serve as the foundation for all embodiments of the droplet-based delivery system.
[0040] To fully appreciate the invention, and to provide context for the disclosure, the droplet system must first be juxtaposed with conventional technology.
[0041]
[0042] These packetizing, intermixing, and binding functions are discussed below. Also discussed below are various modes for implementing the droplet system as invented.
[0043] First and foremost, the droplet system comprises not only an admixing chamber and chemical fluid but also streaming means. The streaming means (not depicted in the drawings) is employed to push or pull feed gas into the admixing chamber. The streaming means may comprise positive or negative pressure from wind, canisters, flues, compressors, fans, vacuums, or any other available gas source or gas-streaming device. In short, any natural or artificial mechanism may be used to push or pull feed gas into the admixing chamber.
[0044] The invention employs an atomizer to implement the packetization function. Specifically, referring to
[0045]
[0046] One embodiment of the invention deals with settled chemicals by utilizing an internal reservoir, that is, by collecting and retaining chemicals on the chamber floor. That embodiment is depicted in
[0047] The systems shown in
[0048] As illustrated in
[0049] In that spirit,
[0050] In addition to the multi-atomizer embodiments, it is preferred that the atomizers deliver the smallest droplets possible. The reason relates to increased surface area. In that regard,
[0051] Whatever embodiment is utilized, it is recommended that precautions be taken to prevent chemical aerosols from escaping the admixing chamber. This is because many chemicals, especially chemicals employed in decarbonizing devices, are harmful to the environment. The venting of chemical aerosols is therefore discouraged and should be avoided if possible.
[0052] Various measures may be adopted to prevent escaping chemical aerosols. For example, filters or membranes can be positioned at the exhaust port. The filters or membranes would be capable of blocking micron-sized particles, including chemical aerosols. Additionally, condensing devices or liquid barriers may be incorporated into the admixing chamber. Exhaust gas would pass through such devices or barriers before being vented, thereby removing chemical aerosols. These embodiments are inclusive, as other aerosol-containment measures can certainly be taken within the scope of the invention.
Subpart B
Advantages of Droplet System
[0053] The droplet-based delivery system has numerous advantages over prior art. Those advantages primarily relate to chemical flow, surface area, and progressive cycling, all of which increase efficiency in one way or another.
[0054] Unlike carbon-capturing devices that rely on chemical-impregnated suspension lattices, the droplet system employs free-flowing chemicals. The chemicals are ejected by the atomizers but eventually settle to the bottom of the admixing chamber. Thus, unlike lattice-based devices, the droplet system allows chemicals to be drained and transferred to another vessel for stripping and regeneration.
[0055] The droplet system also features advantageous surface-area and progressive-cycling characteristics. Unlike all prior-art decarbonizing devices, the droplet system delivers packetized chemicals. Such packetized delivery is progressive in nature. The atomizers, in other words, continuously or periodically eject chemical droplets. Droplet surface area, as such, is constantly renewed with the passage of time.
[0056] The foregoing surface-area and progressive-cycling characteristics can be mathematically quantified. As noted,
[0057] For calculation purposes, it will be assumed that the atomizers collectively output 1 liter of fluid per discharge cycle. It will further be assumed that the atomizers eject droplets measuring 0.001 cm.sup.3 (0.000001 liter). Here, again, reference is made to the mathematical table, particularly the last row appearing in
[0058] These surface-area calculations apply to each discharge cycle. Now, assuming that the atomizers engage in 10 discharge cycles per second, then per-second surface area will total 483597.5862 cm.sup.2 (48.35975862 m.sup.2). If that per-second figure is extended to one day (86400 seconds), then per-day surface area will total 41782831447.6800 cm.sup.2 (4178283.14476800 m.sup.2). Finally, if that per-day figure is extended to one year (365.25 days), then per-year surface area will total 15261179186265.120000 cm.sup.2 (1526117918.6265120000 m.sup.2).
[0059] These cumulative surface-area figures, to reiterate, apply to 1 liter of fluid. If per-cycle fluid output is increased to 10 liters, and if all other metrics remain the same, then progressive surface area (that is, total surface area over time) will increase by one decimal position.
[0060] Finally, it is emphasized that the foregoing surface-area calculations are conservative. All calculations were based on the assumption that the atomizers discharged droplets having volumes of 0.001 cm.sup.3 (0.000001 liter). Such microliter droplets are actually quite large, measuring 1 cubic millimeter. Existing atomizers, not surprisingly, are capable of ejecting less-voluminous droplets. Obviously, where nanoliter droplets are employed (that is, where droplets measure 0.000001 cm.sup.3), then all aggregate surface-area measurements, as quoted above, must be multiplied by 10—thereby increasing aggregate surface area by another decimal position.
Subpart C
Embodiments of Bubble System
[0061] Turning now to the bubble-based delivery system, that system similarly comprises an admixing chamber and streaming means. However, unlike the droplet system, the bubble system delivers packetized gas, not packetized chemicals.
[0062] For reference purposes,
[0063] The bubble-based delivery system, as noted, is directed at packetizing feed gas. Through its packetization function, the invention overcomes prior-art limitations by increasing the surface area of feed gas and thereby enhancing the gas-binding efficiency of decarbonizing devices.
[0064] The bubble system, of course, relies on streaming means to inject feed gas into the admixing chamber. Any pressurizing device can be employed to effectuate feed-gas injection. Such devices include, but are not limited to, canisters, flues, compressors, fans, or other positive-pressure apparatuses. Those streaming devices will necessarily be connected to the intake port, forcing feed gas to enter the admixing chamber for intermixing with chemical media.
[0065] The invention employs various methods for packetizing gaseous feedstock. Some of those methods are discussed below and illustrated in the accompanying drawings.
[0066]
[0067]
[0068] The embodiments shown in
[0069] The embodiments shown in
[0070] Lastly, the embodiments shown in
[0071] Whatever embodiments are employed, it is recommended that the bubble system produce the smallest gas packets possible. This recommendation is premised on the fact that smaller spheres feature greater aggregate surface area per given volume of fluid. The mathematical relationship between sphere volume and aggregate sphere area is illustrated by the table shown in
Subpart D
Advantages of Bubble System
[0072] The bubble-based delivery system features numerous advantages over prior art. The main advantage of the bubble system relates to increased surface area of chemical-traversing feed gas. Whereas conventional decarbonizing devices advance feed gas through free-standing chemical media in conical or cylindrical form, such as the device shown in
[0073] It goes without saying that surface area is an important metric in decarbonizing systems. Irrespective of the type of decarbonizing device involved, the surface area of exposed feed gas serves as an interface for absorption or adsorption. A positive correlation therefore exists between surface area and carbon-capturing efficiency. This principle Underlies the main advantage of the bubble system. Because greater surface area translates into greater gas-to-chemical exposure, the bubble system, through its packetization function, increases the efficiency of decarbonizing systems.
[0074] Such increases in efficiency are advantageous, to say the least. For one thing, more carbon dioxide can be scrubbed from feed gas. It will therefore be unnecessary to recycle feed gas through the admixing chamber for additional scrubbing. And because feed gas is scrubbed more completely (that is, more carbon dioxide is removed), processed feed gas is cleaner and can be safely vented. The upshot is that the bubble-based delivery system is environmentally friendly, results in greater carbon-dioxide sequestration, and will reduce operating expenses by obviating feed-gas recycling.
[0075] The bubble-based delivery system features other advantages in addition to those specified. For present purposes, however, it suffices to say that the bubble system overcomes numerous limitations in prior art, giving the bubble system superiority in relation to conventional devices.
Subpart E
Comments Regarding Both Systems
[0076] Two discrete but related packetization systems have been disclosed. One system enables the delivery of chemical fluid in droplet form. The other system, in contrast, enables the delivery of feed gas in bubble form. Multiple embodiments of the droplet and bubble systems were disclosed. All such embodiments are capable of effectuating the packetization function, either in the form of droplets or bubbles.
[0077] By studying the present disclosure, skilled artisans can implement the droplet and bubble systems according to the preferred embodiments of the invention. There are, of course, other embodiments of the disclosed systems. Such additional embodiments can be implemented within the scope of the invention, as broadly defined by the below claims.
[0078] Although the invention has been discussed in connection with decarbonizing devices, the droplet and bubble systems go beyond carbon-capturing purposes. This is because the admixing chamber may employ any type of chemical, including any chemical capable of binding to gases other than carbon dioxide. Moreover, feed gas may comprise any gaseous element, molecule, mixture, or substance. The disclosed systems, in short, apply to all gas-to-chemical interactions, not just to carbon-dioxide streams and carbon-binding chemicals.
[0079] Finally, it is noted that the disclosure and claims repeatedly refer to chemicals in general and chemical fluid or media in particular. Those terms are intended to be interpreted in the broadest possible sense. Accordingly, all chemical references shall encompass any liquid substance, including water. Such an inclusive chemical definition stems from knowledge that water is capable of binding miscellaneous gases, including carbon dioxide. Seawater, in fact, dissolves hundreds of billions of tons of carbon dioxide every year. It is therefore anticipated that practitioners will employ water and other liquid substances as gas-binding chemicals, which can certainly be done within the scope of the invention.