Systems, methods, and apparatuses related to vehicles with reduced emissions

Patent metadata

Field	Value
Publication number	US-9435239-B2
Application number	US-201313957083-A
Country	US
Kind code	B2
Filing date	Aug 1, 2013
Priority date	Aug 1, 2013
Publication date	Sep 6, 2016
Grant date	Sep 6, 2016

Abstract

This disclosure relates generally to vehicles with reduced emissions. More particularly, this disclosure relates to systems, methods, and apparatuses related to vehicles with reduced carbon dioxide emissions. The carbon dioxide emissions may be stored in a carbon dioxide clathrate.

First claim

The invention claimed is:

1. A method of sequestering emissions, the method comprising:
storing gas clathrates in a clathrate storage vessel;
separating stored gas clathrates into at least one gas and a host material, wherein separating stored gas clathrates comprises dissociating primarily only gas clathrates without substantially dissociating stored carbon dioxide clathrates;
operating an engine of a vehicle utilizing the at least one gas as fuel;
combining carbon dioxide from an exhaust stream of the engine with the host material, wherein the host material is compatible with forming carbon dioxide clathrates with the carbon dioxide of the exhaust stream;
pressurizing and cooling the exhaust stream and the host material sufficient to form carbon dioxide clathrates with the carbon dioxide and the host material; and
storing formed carbon dioxide clathrates in the clathrate storage vessel during operation of the engine.

2. The method of claim 1 , further comprising removing stored carbon dioxide from the clathrate storage vessel when the vehicle is otherwise not in use.

3. The method of claim 1 , wherein the host material used to form carbon dioxide clathrates is at least partially host material that was previously separated from the gas clathrates.

4. The method of claim 1 , further comprising tracking which clathrates comprise gas clathrates and which clathrates comprise carbon dioxide clathrates.

5. A vehicle with reduced emissions, the vehicle comprising:
a clathrate storage vessel configured to store gas clathrates and carbon dioxide clathrates;
a separation system configured to dissociate the gas clathrates into a host material and at least one gas;
an engine configured to utilize the at least one gas as fuel;
a clathrate formation system configured to combine carbon dioxide from an exhaust stream from the engine, with the host material to form carbon dioxide clathrates; and
an electronic control system configured to feed primarily stored gas clathrates to the separation system without feeding stored carbon dioxide clathrates to the separation system.

6. The vehicle of claim 5 , further comprising a tracking system configured to monitor which clathrates comprise gas clathrates and which clathrates comprise carbon dioxide clathrates.

7. The vehicle of claim 5 , wherein the clathrate storage vessel is configured to receive the at least one gas and the host material and to form the gas clathrates within the clathrate storage vessel.

8. The vehicle of claim 5 , wherein the clathrate storage vessel is configured to be detachable from and reattachable with the remainder of the vehicle.

9. The vehicle of claim 8 , wherein the clathrate storage vessel is configured to be exchanged with a different clathrate storage vessel that has had carbon dioxide clathrates removed and been pre-filled with gas clathrates.

10. The vehicle of claim 5 , further comprising a pressurizing device operably connected to the clathrate storage vessel and configured to maintain pressure within the clathrate storage vessel.

11. The vehicle of claim 5 , further comprising a heating system configured and located to impart heat energy to the clathrate storage vessel.

12. The vehicle of claim 5 , further comprising a control system configured to monitor both pressure and temperature and to regulate at least one of the pressure and temperature in order to maintain clathrates within a clathrate stability range.

13. The vehicle of claim 5 , wherein the separation system comprises a separation vessel operably connected to the clathrate storage vessel.

14. The vehicle of claim 13 , wherein the vehicle further comprises a transport device operably connected to the clathrate storage vessel and operably connected to the separation vessel and configured to transfer gas clathrates from the clathrate storage vessel to the separation vessel.

15. The vehicle of claim 13 , wherein the separation system is configured to control the rate of dissociation of the gas clathrates by regulating at least one of the temperature and the pressure of the gas clathrates within the separation vessel.

16. The vehicle of claim 13 , wherein the separation system further comprises a heating system configured and located to impart heat energy to the separation vessel.

17. The vehicle of claim 5 , further comprising a transport device configured to transport dissociated at least one gas from the separation system to the engine, wherein the transport device is operably connected to the separation system and to the engine.

18. The vehicle of claim 5 , wherein the clathrate storage vessel is configured for removal of stored carbon dioxide from the vehicle when the vehicle is otherwise not in use.

19. The vehicle of claim 5 , wherein the clathrate storage vessel is configured to maintain carbon dioxide clathrates as a solid until removal of carbon dioxide from the vehicle is intended.

20. The vehicle of claim 5 , further comprising a recycle system configured to transfer dissociated host material from the separation system to the clathrate formation system.

21. The vehicle of claim 5 , wherein at least a portion of the host material used to store gas clathrates is reused to form carbon dioxide clathrates.

22. A vehicle with reduced emissions, the vehicle comprising:
a clathrate storage vessel configured to store gas clathrates and carbon dioxide clathrates;
a separation system configured to dissociate the gas clathrates into a host material and at least one gas;
an engine configured to utilize the at least one gas as fuel; and a clathrate formation system configured to combine carbon dioxide from an exhaust stream from the engine. with the host material to form carbon dioxide clathrates, wherein the clathrate formation system is configured to control the pressure and temperature of the exhaust stream and the host material sufficient to form carbon dioxide clathrates with carbon dioxide and host material.

23. The vehicle of claim 22 , wherein the clathrate formation system comprises a cooling system configured to cool the exhaust stream.

24. The vehicle of claim 22 , wherein the clathrate formation system comprises a formation vessel operably connected to the clathrate storage vessel.

25. The vehicle of claim 24 , further comprising a carbon dioxide removal system configured to separate carbon dioxide from the exhaust stream and deliver the removed carbon dioxide to the formation vessel.

26. The vehicle of claim 25 , wherein the carbon dioxide removal system comprises a removal vessel operably connected to the exhaust stream and the formation vessel.

27. The vehicle of claim 26 , wherein the removal vessel is configured to contact the exhaust stream with at least one separation fluid.

28. The vehicle of claim 26 , wherein the removal vessel is configured to contact the exhaust stream with an alkali carbonate.

29. The vehicle of claim 26 , wherein the removal vessel comprises a membrane configured to separate carbon dioxide from the exhaust stream.

30. The vehicle of claim 24 , wherein the clathrate formation system is configured to control the rate of formation of the carbon dioxide clathrates by regulating at least one of the temperature and the pressure of exhaust gases within the formation vessel.

31. The vehicle of claim 24 , wherein the vehicle further co

Assignees

• Elwha Llc
• Elwha Llc

Inventors

• Hyde Roderick A
• Wood Jr Lowell L

Classifications

• F01N3/0857 Primary

  Carbon oxides · CPC title

• F02M21/02

  for gaseous fuels · CPC title

• Y02T10/34

  Cross-Sectional Technologies · mapped topic

• F02B45/10

  operating on mixtures of liquid and non-liquid fuels, e.g. in pasty or foamed state · CPC title

• Y02T10/32

  Cross-Sectional Technologies · mapped topic