Natural hydrogen in the volcanic-bearing sedimentary basin: Origin, conversion, and production rates.

ABSTRACT: The origins of natural hydrogen in natural gas systems of sedimentary basins and the capacity of these systems to store hydrogen remain inadequately understood, posing crucial questions for the large-scale exploration of natural hydrogen. This study reports on the natural gas composition, stable carbon and hydrogen isotopic values, and helium isotopic values of gas samples collected from the Qingshen gas deposit within volcanic rocks of the Songliao Basin. Natural hydrogen primarily originates from water radiolysis, water-rock interactions (WRI), and mantle. The Qingshen gas deposit contains 95.23 × 10⁹ cubic meters of abiotic CH₄, of which 15.24 × 10⁹ cubic meters was generated through hydrogen conversion via Fischer-Tropsch synthesis, with the maximum ori

SUBMITTER: Liu Q 

PROVIDER: S-EPMC11759049 | biostudies-literature | 2025 Jan

REPOSITORIES: biostudies-literature