---
publication_id: "OT-2026-000002943"
title: "Eliminating microbial hydrogen consumption in subsurface hydrogen storage"
published_at: "2026-09-15T19:16:17.688001Z"
canonical_url: "https://opentechnical.org/p/OT-2026-000002943"
categories:
  - "material-handling/conveying-systems"
keywords:
  - "b65g5/00"
  - "b65g5/00"
  - "c09k8/594"
  - "a61l2/20"
  - "a61l2/20"
  - "a61l2/20"
---

# Eliminating microbial hydrogen consumption in subsurface hydrogen storage

## Abstract

Hydrogen consuming microorganisms can cause operational challenges for subterranean hydrogen storage. The systems and methods described herein provide sterilization techniques that include acidifying a subterranean reservoir prior to injection of hydrogen. Acidification may be facilitated by, at least partially, saturating a fluid with an acidifying agent such as carbon dioxide. The subterranean reservoir's fluid may be reduced to 3 pH to 4 pH. Hydrogen may then be injected into the subterranean reservoir for storage.