Energy generation by igniting flames of an electropositive metal by plasmatizing the reaction gas

Patent metadata

Field	Value
Publication number	US-10111314-B2
Application number	US-201515511253-A
Country	US
Kind code	B2
Filing date	Sep 16, 2015
Priority date	Sep 24, 2014
Publication date	Oct 23, 2018
Grant date	Oct 23, 2018

Abstract

The present disclosure relates to generating energy. The teachings thereof may be embodied in methods for burning a reaction gas with an electropositive metal. An method for generating energy may include: supplying a reaction gas and an electropositive metal separately to at least one nozzle; wherein the electropositive metal is selected from alkali metals, alkaline earth metals, aluminum, zinc, mixtures, and/or alloys thereof; burning the reaction gas with the electropositive metal; and coverting the reaction gas before or during burning at least temporarily into a plasma.

First claim

What is claimed is:

1. A method for generating energy, the method comprising:
supplying a reaction gas and an electropositive metal separately to at least one nozzle having coaxial electrodes;
wherein the electropositive metal at least one material selected from the group consisting of: alkali metals, alkaline earth metals, aluminum, zinc, mixtures;
combining the reaction gas and the electropositive metal at a mixing point in the at least one nozzle to burn the reaction gas with the electropositive metal; and
converting the reaction gas into a plasma with a high-voltage discharge between the anode and the cathode upstream of the mixing point.

2. The method as claimed in claim 1 , further comprising generating the plasma within the at least one nozzle with a high-voltage discharge in the range from 4 to 100 kV where the nozzle serves as an electrode.

3. The method as claimed in claim 1 , further comprising:
supplying an atomizing gas to the at least one nozzle; and
atomizing the electropositive metal with the atomizing gas.

4. The method as claimed in claim 1 , further comprising liquefying or atomizing the electropositive metal before supply into the at least one nozzle.

5. The method as claimed in claim 1 , where, by placement of a contact, the electropositive metal serves as electrode during plasma generation.

6. An apparatus for generating energy by burning a reaction gas with an electropositive metal, the apparatus comprising:
at least one nozzle to atomize a mixture of the electropositive metal and the reaction gas, the at least one nozzle including coaxial electrodes;
a first supply to supply the electropositive metal to the at least one nozzle;
a second supply to supply the reaction gas to the at least one nozzle;
wherein the at least one nozzle defines a mixing point where streams of the electropositive metal and the reaction gas combine;
an ignition device on or in the at least one nozzle to convert the reaction gas within the at least one nozzle into a plasma with a high-voltage discharge between the electrodes upstream of the mixing point.

7. The apparatus as claimed in claim 6 , further comprising a third supply to supply an atomizing gas to the at least one nozzle.

8. The apparatus as claimed in claim 6 , wherein one or more of the first supply or the second supply or the third supply opens out in the at least one nozzle.

9. The apparatus as claimed in claim 6 , wherein the at least one nozzle comprises a single-fluid nozzle or a two-fluid nozzle.

10. The apparatus as claimed in claim 6 , further comprising a melting device or a comminuting device to melt or to comminute the electropositive metal upstream of or in the first supply.

11. The apparatus as claimed in claim 6 , wherein the at least one nozzle comprises a metal nozzle or a reaction gas nozzle or an atomizing gas nozzle;
wherein:
the first supply means opens out in the metal nozzle; or
the second supply opens out in the reaction gas nozzle; or
the third supply opens out in the atomizing gas nozzle.

12. The apparatus as claimed in claim 11 , wherein:
the first supply is disposed coaxially within the second supply;
the second supply opens out into the reaction gas nozzle; and
the first supply supplies the electropositive metal within the at least one nozzle.

13. The apparatus as claimed in claim 6 , wherein the ignition device comprises a high-voltage ignition device having a high-voltage source with a voltage in the range from 4 to 100 kV, the high-voltage source connected to two electrodes, wherein:
i) the first supply or the electropositive metal itself, and the second supply; or
ii) the first supply or the electropositive metal itself, and the third supply; or
iii) the second supply and the third supply;
are each designed as one electrode and the shortest distance between the respective electrodes is formed within the at least one nozzle.

14. The apparatus as claimed in claim 13 , wherein the electropositive metal comprises an electrode and wherein, after the supply by the first supply, the electropositive metal passes as a coherent metal body or as a dense cloud of metal particles into the at least one nozzle, and
the ignition device comprises the at least one nozzle and the electropositive metal.

Assignees

• Siemens Ag

Inventors

• Eckert Helmut
• Kellermann Renate Elena
• Maleika Marek
• Ruehrig Manfred
• Schmid Guenter
• Taroata Dan

Classifications

• H05H1/42 Primary

  with provisions for introducing materials into the plasma, e.g. powder or liquid {(arc stabilising or constricting arrangements H05H1/3405; coaxial protecting fluids H05H1/341)} · CPC title

• H05H1/34 Primary

  Details, e.g. electrodes, nozzles · CPC title

• H05H1/48 Primary

  using an arc (H05H1/26 takes precedence) · CPC title

• H05H2001/3468

  Electricity · mapped topic

• H05H2001/3484

  Electricity · mapped topic