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Cavern pressure management

a technology of cavern pressure and management, applied in the direction of pressure vessels, fluid handling, storage devices, etc., can solve the problems of customer demand exceeding the hydrogen production capacity of existing plants, and violating such agreements

Inactive Publication Date: 2016-12-08
AIR LIQUIDE LARGE INDS U S LP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The present invention provides methods for managing pressure in underground storage volumes. These methods involve storing a compressible fluid in the volume and adding additional compressible or incompressible fluid in a controlled manner to increase the pressure within the volume while maintaining the pressure increase rate below a predetermined maximum value. The methods can be used to optimize the storage and management of fluids in underground storage volumes and improve safety and efficiency during the process.

Problems solved by technology

When a steam methane reformer is taken off-line for unplanned or extended maintenance, the result could be a violation of such agreements.
Additionally, there are instances in which customer demand can exceed hydrogen production capacity of existing plants in the short term.

Method used

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Examples

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Effect test

Embodiment Construction

[0010]Illustrative embodiments of the invention are described below. While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof have been shown by way of example in the drawings and are herein described in detail. It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.

[0011]It will of course be appreciated that in the development of any such actual embodiment, numerous implementation-specific decisions must be made to achieve the developer's specific goals, such as compliance with system-related and business-related constraints, which will vary from one implementation to another. Moreover, it will be appreciated that such a development effort might...

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PUM

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Abstract

A cavern pressure control method includes storing compressible and possibly incompressible fluids in an underground storage volume, removing a portion or introducing additional incompressible fluid into the underground storage volume, possibly removing a portion or introducing additional compressible fluid into the underground storage volume, thereby producing a net pressure increase rate (Pinc) within the underground storage volume, wherein Pinc is maintained at less than a predetermined maximum increase value (PImax).

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of U.S. patent application Ser. No. 14 / 732,124 filed Jun. 5, 2015, the entire contents of which are incorporated herein by reference.BACKGROUND[0002]Hydrogen is commonly supplied to customers that are connected to a supplier's hydrogen pipeline system. Typically, the hydrogen is manufactured by steam methane reforming in which a hydrocarbon such as methane and steam are reacted at high temperature in order to produce a synthesis gas containing hydrogen and carbon monoxide. Hydrogen may then be separated from the synthesis gas to produce a hydrogen product stream that is introduced into the pipeline system for distribution to customers that are connected to the pipeline system. Alternatively, hydrogen produced from the partial oxidation of a hydrocarbon can be recovered from a hydrogen rich stream.[0003]Typically, hydrogen is supplied to customers under agreements that require availability and reliability...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65G5/00
CPCB65G5/00F17C1/007F17C2221/011F17C2221/012F17C2221/013F17C2221/014F17C2221/016F17C2221/017F17C2221/031F17C2223/0123F17C2250/043F17C2250/0626F17C2260/021F17C2270/0152F17C2223/036Y02E60/32B65G5/005
Inventor STRYBOS, RONALD
Owner AIR LIQUIDE LARGE INDS U S LP