Type of burning device for producing gas mixtures

Patent metadata

Field	Value
Publication number	US-10413879-B2
Application number	US-201615765084-A
Country	US
Kind code	B2
Filing date	Oct 4, 2016
Priority date	Oct 1, 2015
Publication date	Sep 17, 2019
Grant date	Sep 17, 2019

Abstract

A new type of burning device for producing hydrohalogen compounds.

First claim

The invention claimed is:

1. A burning device for producing hydrogen halide, comprising at least two concentrically arranged combustion tubes, wherein a swirl generator is arranged in an inner combustion tube, wherein the swirl generator has an outer diameter of at least 30 mm.

2. The burning device according to claim 1 , wherein the outer combustion tube, the inner combustion tube and the swirl generator comprise corrosion-resistant material, preferably selected from the group consisting of graphite, synthetic graphite, graphite impregnated with synthetic resin, preferably graphite impregnated with phenolic resin, silicon carbide, graphite coated with silicon carbide, silica glass, aluminum oxide or any mixtures thereof.

3. The burning device according to claim 1 , wherein the swirl generator is from 0.5 to 2 times the length.

4. The burning device according to claim 1 , wherein the swirl generator has the outer diameter from 30 mm to 300 mm.

5. The burning device according to claim 1 , wherein the ratio of a core diameter to an outer diameter of the swirl generator is from 1:2.5 to 1:1.5.

6. The burning device according to claim 1 , wherein the swirl generator has at least two guide vanes.

7. The burning device according to claim 6 , wherein a free cross-sectional area, based on a total cross-sectional area of the swirl generator that is subject to flow, is from 15 to 75%.

8. The burning device according to claim 6 , wherein the guide vanes extend in a spiral shape along a longitudinal axis of the swirl generator.

9. The burning device according to claim 6 , wherein the guide vanes have an average angle of incidence of from 35° to 85°.

10. The burning device according to claim 1 , wherein a supplied gas is discharged axially out of the outer combustion tube.

11. The burning device according to claim 1 , wherein the inner combustion tube and the outer combustion tube are closed off at the same height.

12. The burning device according to claim 1 , wherein a spindle is arranged in the inner combustion tube on a side of the swirl generator that is subject to flow.

13. The burning device according to claim 12 , wherein the spindle diameter and core diameter are equal.

14. The burning device according to claim 2 , wherein the diameter of the outer combustion tube narrows toward the combustion chamber.

15. The burning device according to claim 1 , wherein the swirl generator is recessed in the inner combustion tube by up to two times the outer diameter of the swirl generator.

Assignees

• Sgl Carbon Se

Inventors

• Koch Christoph
• Rashidi Arash
• Bienhuels Christian
• Skarke Birgit

Classifications

• F23D14/24

  at least one of the fluids being submitted to a swirling motion · CPC title

• C01B7/01

  Chlorine; Hydrogen chloride · CPC title

• C01B7/00 Primary

  Halogens; Halogen acids (oxyacids C01B11/00) · CPC title

• B01J2208/00504

  by means of a burner · CPC title

• B01J19/2415

  Tubular reactors · CPC title