Systems and methods for fabricating bodies (e.g., porous bodies) are described. Various aspects provide for reactors and the fabrication of reactors. Some reactors include surfaces that provide for heterogeneous reactions involving a fluid (and/or components thereof). A fluid may be a gas and/or a l
Systems and methods for fabricating bodies (e.g., porous bodies) are described. Various aspects provide for reactors and the fabrication of reactors. Some reactors include surfaces that provide for heterogeneous reactions involving a fluid (and/or components thereof). A fluid may be a gas and/or a liquid. A contaminant in the fluid (e.g., a dissolved or suspended substance) may react in a reaction. Some reactors provide for independent control of heat transfer (between the fluid, the reactor, and the environment) with respect to mass transfer (e.g., fluid flow through the reactor).
대표청구항▼
1. A substrate for use in a reactor having an inlet and an outlet, a line from the inlet to the outlet defining a flow direction, the substrate comprising: a first end configured to be in fluid communication with the inlet;a second end configured to be in fluid communication with the outlet;a first
1. A substrate for use in a reactor having an inlet and an outlet, a line from the inlet to the outlet defining a flow direction, the substrate comprising: a first end configured to be in fluid communication with the inlet;a second end configured to be in fluid communication with the outlet;a first channel within the substrate, the first channel having a shape that causes a fluid flowing through the first channel to take a second direction that deviates from the flow direction by at least 5 degrees, anda second channel separated from the first channel by a porous wall, wherein either of the first and second channels is in fluid communication with the inlet, and the other of the first and second channels is in fluid communication with the outlet. 2. The substrate of claim 1, wherein a primary flow field describes a predominant flow of a fluid flowing through at least one of the first and second channels, and the channel includes one or more flow modifiers shaped to induce a secondary flow field in a fluid flowing through the channel. 3. The substrate of claim 1, wherein the second direction deviates from the flow direction by an amount that does not exceed 90 degrees. 4. The substrate of claim 3, wherein the deviation is between 20 and 90 degrees. 5. The substrate of claim 1, wherein the flow direction and the second direction define a plane, and at least a portion of the first channel has a shape that causes the fluid flowing through the portion to follow a third direction that is not coplanar with the plane. 6. The substrate of claim 1, wherein at least a portion of at least one of the first and second channels forms a helix. 7. The substrate of claim 1, wherein at least a portion of at least one of the first and second channels is ring shaped. 8. The substrate of claim 1, wherein the substrate includes an interior volume, and either of the first and second channels includes an opening to at least one of the interior volume and an exterior of the substrate. 9. The substrate of claim 1, wherein the inlet is in fluid communication with either an interior of the substrate or an exterior of the substrate, and the outlet is in fluid communication with the other of the interior and exterior. 10. The substrate of claim 1, wherein at least one of the first and second channels describes a circular flow path around an interior of the substrate. 11. The substrate of claim 10, wherein the flow path in at least one of the first and second channels is clockwise and the flow path in at least one other of the first and second channels is counterclockwise. 12. The substrate of claim 1, wherein at least one first and one second channel describe a circular flow path around an interior of the substrate, and the flow paths in both the first and second channels are either clockwise or counterclockwise. 13. The substrate of claim 1, wherein at least one of the first and second channels is curved. 14. The substrate of claim 1, wherein at least one of the first and second channels is characterized by a flow direction associated with a fluid flowing through that channel, and that channel includes a subchannel that causes the flowing fluid to follow a second direction different than the first direction. 15. The substrate of claim 1, wherein at least one of the first and second channels is curved and includes a plurality of subchannels that induce a radial flow with respect to the curve. 16. The substrate of claim 1, wherein at least one of the first and second channels includes a flow modifier shaped to generate a vortex flow field in a fluid flowing through the channel. 17. The substrate of claim 1, wherein at least one of the first and second channels includes a flow modifier shaped to generate turbulence in a fluid flowing through the channel. 18. The substrate of claim 1, wherein: the substrate includes an interior volume in fluid communication with the inlet;an exterior of the substrate is in fluid communication with the outlet; andthe inlet and outlet are in fluid communication via the porous wall between the first and second channels. 19. The substrate of claim 18, wherein at least one of the first and second channels includes a helical shape and a plurality of subchannels the subchannels inducing a radial flow direction with respect to the helical shape. 20. A substrate for use in a reactor having an inlet and an outlet, a line from the inlet to the outlet defining a flow direction, the substrate comprising: a first end configured to be in fluid communication with the inlet;a second end configured to be in fluid communication with the outlet; anda helical first channel within the substrate and in fluid communication with at least one of the inlet and the outlet, the helical first channel including one or more subchannels that induce a radial component with respect to the helical first channel. 21. The substrate of claim 20, wherein the substrate includes an interior volume, and the first channel includes an opening to at least one of the interior volume and an exterior of the substrate. 22. The substrate of claim 21, wherein the first channel provides for fluid communication between the interior volume and the exterior. 23. The substrate of claim 20, wherein the first channel includes one or more flow modifiers shaped to induce turbulence in a fluid flowing through the first channel. 24. The substrate of claim 20, wherein the first channel includes one or more flow modifiers shaped to induce a vortex flow field in a fluid flowing through the first channel. 25. A substrate for use in a reactor having an inlet and an outlet, a line from the inlet to the outlet defining a flow direction, the substrate comprising: a first end configured to be in fluid communication with the inlet;a second end configured to be in fluid communication with the outlet; anda first channel within the substrate, the first channel in fluid communication with at least one of the inlet and the outlet, the first channel including a plurality of subchannels, wherein the first channel is in the shape of a ring having an interior and an exterior, and the interior and exterior are in fluid communication via the first channel. 26. The substrate of claim 25, wherein the substrate includes an interior volume, and the first channel includes an opening to at least one of the interior volume and an exterior of the substrate. 27. The substrate of claim 25, wherein a flow field through at least one subchannel is characterized by a primary flow field, and the subchannel includes a flow modifier configured to induce a secondary flow field in the flow of fluid. 28. The substrate of claim 25, wherein the first channel is characterized by a flow direction associated with a fluid flowing through the first channel, and at least one subchannel causes the flowing fluid to follow a second direction different than the first direction. 29. The substrate of claim 25, wherein the first channel includes a flow modifier to induce a vortex flow field in a fluid flowing through the first channel. 30. The substrate of claim 25, wherein the first channel includes a flow modifier configured to induce turbulence in a fluid flowing through the first channel. 31. The substrate of claim 25, wherein the substrate includes an interior volume in fluid communication with an exterior of the substrate via the first channel. 32. The substrate of claim 25, wherein a flow of fluid through the first channel is characterized by a primary flow field, and the first channel includes one or more flow modifiers shaped to induce a secondary flow field in the flow of fluid.
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