This application note describes a 6-minute Agilent 7890A GC-based refinery gas analysis (RGA) system. The system consists of 7890A GC, three detectors (TCD, ECD and FID), five valves, a 10-port valve and seven columns. The system can fully analyze nC6 and below hydrocarbons and permanent gases, including nitrogen, hydrogen, oxygen, carbon monoxide and carbon dioxide, within 6 minutes.
The document details a configuration of the Agilent 7890A Gas Chromatograph (GC) designed to analyze refinery gas within six minutes. This system utilizes three channels: one FID detector for light hydrocarbons and two TCD detectors for hydrogen, helium, and permanent gases. This manual is written in Japanese.
The total analysis time is within 6 minutes.
The minimum detection limit for hydrogen sulfide is 500 ppm.
This method complies with ASTM D1945 and ASTM D1946.