Improve Tail Gas Process Control Using Real Time Hydrogen Monitoring

Measuring the hydrogen content in the gas exiting the reactor and quench tower is widely recognized as the primary way to ensure stable operation of the tail gas treating process. A second measurement location after the absorber is typically used to monitor the amine treatment section. The sample stream usually consists of approximately 3% H2 and 1 – 3% H2S, with ~10% CO2, ~10% water vapor, and the balance consisting of N2 plus various hydrocarbons and other compounds.