Burner for synthesis gas with improved cooling

Patent metadata

Field	Value
Publication number	US-12140307-B2
Application number	US-202218689278-A
Country	US
Kind code	B2
Filing date	Aug 12, 2022
Priority date	Sep 8, 2021
Publication date	Nov 12, 2024
Grant date	Nov 12, 2024

Abstract

A burner ( 1 ) for the production of synthesis gas, configured to feed a reactant stream and an oxidant stream into a reaction chamber, the burner comprising at least one cooled component ( 11, 12 ), wherein said cooled component comprises channels ( 20 ) to convey a cooling medium, a cooling medium header ( 24 ) and a cooling medium collector ( 25 ), wherein said channels, said cooling medium header and said cooling medium collector are integrally formed within said cooled component of the burner.

First claim

What is claimed is:

1. A burner configured to feed a reactant stream and an oxidant stream into a reaction chamber, the burner comprising at least one cooled component, wherein said cooled component comprises:
a plurality of channels arranged in parallel to convey a cooling medium across said cooled component of the burner;
a cooling medium header and a cooling medium collector directly connected to said channels;
wherein said channels, said cooling medium header and said cooling medium collector are integral within said cooled component of the burner;
said burner including a cooling medium collection chamber, which is integrally formed within said component of the burner, said collection chamber being separated from said cooling medium header and from said cooling medium collector, and said collection chamber being directly connected to all said channels.

2. The burner according to claim 1 , wherein said cooling medium collection chamber is located at a tip region of said cooled component.

3. The burner according to claim 1 , wherein:
said cooled component of the burner is made with a 3D printing technique;
the channels, the cooling medium header and collector and, if provided, the cooling medium collection chamber, are made during the 3D printing of the cooled component.

4. The burner according to claim 1 , wherein said channels are distributed on a circumference, thus forming a circular array of channels.

5. The burner according to claim 4 , wherein inflow channels and outflow channels alternate in the array of channels.

6. The burner according to claim 1 , wherein:
said channels have an equivalent diameter which, for each section of each channel, range from 20% to 90% of a local thickness of the cooled component around the section of the channel, and/or the distance between each pair of adjacent channels is 10% to 200% of a local thickness of the cooled component around the pair of channels, and/or for each cross section of the cooled component where cooling channels are present, the cross section being in a plane perpendicular to axes of the cooling channels, the channels are distributed over the entire cross section of said cooled component.

7. The burner according to claim 6 , wherein:
said channels have an equivalent diameter which, for each section of each channel, range from 20% to 90% of a local thickness of the cooled component around the section of the channel, and/or the distance between each pair of adjacent channels is 10% to 90% of a local thickness of the cooled component around the pair of channels, and/or for each cross section of the cooled component where cooling channels are present, the cross section being in a plane perpendicular to axes of the cooling channels, the channels are distributed over the entire cross section of said cooled component.

8. The burner according to claim 1 , wherein the cooling component comprises at least one region with a first number of channels and/or channel spacing, and a second region with a second and different number of channels and/or channel spacing, according to local cooling needs.

9. The burner according to claim 1 , wherein the at least one cooled component of the burner includes a nozzle and a body coaxially arranged around the nozzle, the nozzle having a central aperture for one of the reactant stream and oxidant, and the body defining an annular passage around the nozzle for the other of the reactant stream and oxidant.

10. An equipment for the production of synthesis gas by reacting an oxidizable process gas with an oxidant gas, the equipment comprising a reaction chamber and a burner arranged to feed said process gas and oxidant gas into the reaction chamber, the burner being in accordance with claim 1 .

11. An equipment according to claim 10 , wherein the equipment is any of:
an autothermal reformer;
a non-catalytic partial oxidation reactor; a catalytic partial oxidation reactor.

12. A process for the production of a synthesis gas, including the steps of feeding an oxidizable process gas and an oxidant gas into a reaction chamber with a burner, including the use of an equipment according to claim 10 .

13. A process for the production of a synthesis gas, including the steps of feeding an oxidizable process gas and an oxidant gas into a reaction chamber with a burner according to claim 1 .

14. The process according to claim 13 for the production of a hydrogen-containing synthesis gas, the process being any of autothermal reforming, non-catalytic partial oxidation, or catalytic partial oxidation, said process gas being a hydrocarbon-containing gas or a partially reformed gas, said oxidant gas being any of air, oxygen-enriched air, or oxygen.

15. The method for the manufacturing of a burner for the production of synthesis gas, the burner being configured to feed a reactant stream and an oxidant stream into a reaction chamber, the method comprising the manufacturing of at least one cooled component of the burner with a plurality of internal channels arranged in parallel for the circulation of a cooling medium, the method including that said channels are made within the cooled component;
said burner being as claimed in claim 1 .

16. The method according to claim 15 , wherein the cooled component is made by additive manufacturing process and said channels for the cooling medium are made during the additive manufacturing process.

Assignees

• Casale Sa

Inventors

• Zanichelli Luca
• Panzeri Nicola
• Montini Fabiano

Classifications

• F23D2214/00

  Cooling · CPC title

• F23D14/58

  characterised by the shape or arrangement of the outlet or outlets from the nozzle, e.g. of annular configuration · CPC title

• B33Y10/00

  Processes of additive manufacturing · CPC title

• F23D14/22 Primary

  with separate air and gas feed ducts, e.g. with ducts running parallel or crossing each other · CPC title