Real-Time Gas Chromatography System for Ultrasensitive Monitoring of Odorants in Natural Gas Infrastructure.

ABSTRACT: Natural gas (NG), primarily composed of methane, is colorless and odorless, thus necessitating odorization to enable leak detection and accident prevention. Precise monitoring of odorants is critical to meet safety standards while preventing excessive dosing. This study introduces a real-time gas chromatography system integrating gas chromatography and photoionization detection for the real-time, online odorant analysis in gas pipelines. This system effectively isolates tetrahydrothiophene (THT) and sulfur-free odorants from NG, enabling accurate concentration quantification. It achieves THT detection within 2∼150 mg/m³, with a relative standard deviation (RSD) of less than 1.5% and maximum deviation of less than 3 mg/m³. Additionally, this system exhibits good field

SUBMITTER: Chen Z 

PROVIDER: S-EPMC12752817 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature