초록

Methane gas in a ruminant exhalation may be oxidized to reduce the amount of methane gas output by the ruminant.

대표청구항 ▼

1. A ruminant exhalation treatment device suitable for retention in a nasal passage of a ruminant, the device comprising: a thermally insulating sleeve having an exterior surface contoured to retain the sleeve in the nasal passage of a ruminant, wherein a first exhalation opening at one end of the s

1. A ruminant exhalation treatment device suitable for retention in a nasal passage of a ruminant, the device comprising: a thermally insulating sleeve having an exterior surface contoured to retain the sleeve in the nasal passage of a ruminant, wherein a first exhalation opening at one end of the sleeve is positioned opposite from a second exhalation opening on the other end of the sleeve; anda first structure configured to oxidize methane gas in the ruminant exhalations being held within the sleeve in a space between the opposite ends of the sleeve, wherein a portion of the ruminant exhalations entering the first exhalation opening and traversing the first structure is oxidized and products of the oxidized methane gas pass through second exhalation opening toward a nasal passage exit of the ruminant. 2. The apparatus of claim 1 wherein the first structure configured to oxidize methane gas further includes: a first substrate; and a first washcoat support in intimate contact with the first substrate, wherein the catalyst is carried by the washcoat support. 3. The apparatus of claim 2 wherein the first substrate forms a substantially honeycomb structure. 4. The apparatus of claim 2 wherein the substrate forms a spiral coil. 5. The apparatus of claim 1 wherein the catalyst includes a noble metal. 6. The apparatus of claim 1 further comprising: a shutter positioned in between the pair of openings and in the nasal exhalation flow path and configured to adjust a flow of nasal exhalation traversing the methane oxidation catalyst. 7. The apparatus of claim 1 further comprising: a first methane detector positioned in the space between the first and second exhalation openings and configured to detect methane gas in the ruminant exhalations. 8. The apparatus of claim 7 wherein the first structure spans less than a full width of the sleeve, and wherein the first methane detector is located to detect methane in a portion of the ruminant exhalation that bypasses the first structure. 9. The apparatus of claim 7 wherein the first structure has an on state and an off state, and wherein the first methane detector is arranged to detect methane when the first structure is in the off state. 10. The apparatus of claim 7 further comprising: a second methane detector positioned in the space between the first and second exhalation openings and configured to detect methane gas in the ruminant exhalations, the second methane detector positioned at a different location in the space from the first methane detector. 11. The apparatus of claim 10 further comprising: circuitry configured to receive a signal from the first and second methane detectors. 12. The apparatus of claim 11 further comprising: a storage medium operably connected to the circuitry. 13. The apparatus of claim 11 further comprising: a transmitter operably connected to the circuitry and configured to send the signals from the first and second methane detectors. 14. The apparatus of claim 11 wherein the circuitry is further configured to determine an amount of methane oxidized based on the received signals from the first and second methane detectors. 15. The apparatus of claim 14 further comprising: a transmitter operably connected to the circuitry, the transmitter being configured to send a first signal corresponding to the determined amount of methane oxidized. 16. The apparatus of claim 15 wherein the device is associated with an identification, and wherein the transmitter is further configured to include the identification in the first signal. 17. The apparatus of claim 15 further comprising: a tracker configured to determine the location of the ruminant, the tracker being operably connected to the transmitter; and wherein the transmitter is further configured to include information from the tracker in the first signal. 18. The apparatus of claim 14 wherein the circuitry is further configured to determine a time interval associated with the amount of methane oxidized. 19. The apparatus of claim 1 further comprising: a first gas detector positioned in the space between the first and second exhalation openings and configured to detect methane oxidation product in the ruminant exhalations. 20. The apparatus of claim 19 wherein the methane oxidation product includes carbon dioxide. 21. The apparatus of claim 1 further comprising: circuitry operably connected to the first structure to control the oxidation of the methane gas. 22. The apparatus of claim 1 further comprising: a flow control device arranged proximate to the first structure and configured to adjust the flow of the ruminant exhalation through the first structure. 23. The apparatus of claim 1 further comprising: a heating element arranged to heat the first structure. 24. The apparatus of claim 23 further comprising: circuitry configured to control the heating element. 25. The apparatus of claim 23 further comprising: a power supply configured to provide power to the heating element. 26. The apparatus of claim 1 further comprising: a heat sensor arranged to measure a temperature proximate to the first structure. 27. The apparatus of claim 1 further comprising: a fan arranged to transfer heat away from the device. 28. The apparatus of claim 1 further comprising: a heat pipe arranged to transfer heat away from the device. 29. The apparatus of claim 1 wherein the device is associated with an identification, and wherein the apparatus further comprises: circuitry operably connected to the device and configured to send a signal including information corresponding to the identification. 30. The apparatus of claim 1 further comprising: a tracker configured to determine a location of the ruminant. 31. The apparatus of claim 30 further comprising: circuitry operably connected to the tracker and configured to send a signal corresponding to the location of the ruminant. 32. The apparatus of claim 1 further comprising: a heat sensor configured to determine a temperature proximate to the first structure; a meter configured to determine an amount of ruminant exhalation proximate to the first structure; and circuitry configured to determine an amount of methane oxidized based on the determined temperature and amount of ruminant exhalation proximate to the first structure. 33. The apparatus of claim 1 further comprising: circuitry configured to determine an amount of methane oxidized by the device and configured to generate an output signal responsive to the determined amount. 34. The apparatus of claim 33 further comprising: a storage medium operably connected to the circuitry, the storage medium being configured to store data corresponding to at least one of an amount of methane detected, an amount of methane oxidation product detected, and a determined amount of methane oxidized. 35. The apparatus of claim 33 further comprising: a transmitter operably connected to the circuitry, the transmitter being configured to send a signal corresponding to at least one of an amount of methane detected, an amount of methane oxidation product detected, and a determined amount of methane oxidized. 36. The apparatus of claim 35 wherein the transmitter is configured to send the signal using at least one of physical data storage media, wireless signal transmission, and a physical signal transmission media. 37. The apparatus of claim 1, wherein the exterior surface includes a moisture-expandable material adapted to conform the exterior surface to a nasal passage contour of the ruminant.