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On-line monitoring and control of H2S levels in refinery gas streams is important for process control, meeting product specifications, hydrotreating and desulfurizing unit feedstocks, mitigating corrosion and catalyst poisoning, and compliance with environmental regulations.

A new 13-page page whitepaper describes the use of tunable diode laser absorption spectroscopy (TDLAS) analyzers to monitor and control H2S levels in the gas streams of unit operations throughout a refinery. The advantages of TDLAS analyzers versus traditional H2S measurement technologies are also explained in the whitepaper. Download a copy of the whitepaper.  Click here to view application notes on specific H2S measurements in refineries.