Gas export assembly

Patent metadata

Field	Value
Publication number	US-2023184391-A1
Application number	US-202218061627-A
Country	US
Kind code	A1
Filing date	Dec 5, 2022
Priority date	Dec 10, 2021
Publication date	Jun 15, 2023
Grant date	—

Abstract

A gas export assembly is provided including a gas production facility adapted to generate pressurized gas for export to a remote facility through a pipeline; a determining an upper humidity threshold for the export gas in the pipeline; a determining, on the basis of the upper humidity threshold, a pipeline inlet humidity for the export gas, which pipeline inlet humidity is lower than the upper humidity threshold; and a regulator stage adapted to adjust the humidity of the export gas to the pipeline inlet humidity.

First claim

1 . A gas export assembly comprising:
a gas production facility configured to generate pressurized gas for export to a remote facility through a pipeline; a means of determining an upper humidity threshold for an export gas exported in the pipeline; a means of determining, on a basis of the upper humidity threshold, a pipeline inlet humidity for the export gas, the pipeline inlet humidity being lower than the upper humidity threshold; and a regulator stage configured to adjust a humidity of the export gas to the pipeline inlet humidity.

2 . The gas export assembly according to claim 1 , wherein the regulator stage comprises a cooling module configured to extract water vapor from the pressurized gas.

3 . The gas export assembly according to claim 1 , wherein the regulator stage comprises a pressure reducer configured to reduce a pressure of the cooled and partially dried gas.

4 . The gas export assembly according to claim 1 , comprising a means of determining a lowest temperature in an interior of the pipeline and a means of determining a pressure in the interior of the pipeline at a region of lowest temperature.

5 . The gas export assembly according to claim 4 , wherein the upper humidity threshold is determined on a basis of the lowest temperature and the pressure.

6 . An offshore facility comprising:
a wind turbine; and
a gas export assembly according to claim 1 powered by the wind turbine.

7 . The offshore facility according to claim 6 , wherein the gas production facility comprises a high-pressure PEM water electrolyzer assembly for a production of pressurized hydrogen gas.

8 . A method of operating the gas export assembly according to claim 1 , the method comprising:
determining the upper humidity threshold for the export gas in the pipeline; determining, on the basis of the upper humidity threshold, the pipeline inlet humidity for the export gas, the pipeline inlet humidity being lower than the upper humidity threshold; adjusting the humidity of the export gas to the pipeline inlet humidity; and subsequently feeding the export gas into the pipeline.

9 . The method according to claim 8 , wherein the pipeline inlet pressure is determined on a basis of a desired outlet pressure.

10 . The method according to claim 1 , wherein the regulator arrangement comprises a pressure reducer, and wherein a pressure drop across the pressure reducer is determined on a basis of the pipeline inlet pressure.

11 . The method according to claim 1 , wherein a pipeline inlet temperature is deduced at least on a basis of the pipeline inlet humidity.

12 . The method according to claim 1 , comprising a step of determining a pressure profile over a length of the pipeline.

13 . The method according to claim 1 , comprising a step of determining a temperature profile in a pipeline interior over a length of the pipeline.

14 . The method according to claim 1 , comprising an initial calibration step in which temperature data is collected in an interior of the pipeline over a length of the pipeline.

15 . The method according to claim 1 , wherein the pipeline inlet humidity comprises a relative humidity of at most 85%.

Assignees

• Siemens Gamesa Renewable Energy As

Inventors

• Hoegh Gustav

Classifications

• F17D3/14 Primary

  for eliminating water (separation of liquids B01D, e.g. B01D17/00; separation of gases or vapours B01D53/00) · CPC title

• F17D1/02

  for gases or vapours · CPC title

• F17D5/005 Primary

  of gas pipelines, e.g. alarm · CPC title

• F17D3/145 Primary

  in gas pipelines · CPC title

• Y02E60/36

  Hydrogen production from non-carbon containing sources, e.g. by water electrolysis · CPC title