) concentrations in Claus sulfur recovery units. It uses high-resolution ultraviolet (UV) spectrophotometry to provide real-time, continuous data, helping plants maintain the ideal 2:1 ratio of H2Scap H sub 2 cap S SO2cap S cap O sub 2 for maximum sulfur recovery efficiency.
The manual emphasizes maintaining steam pressure at 80–100 psi with proper insulation to prevent sulfur condensation in the ball valve assembly. ametek 880-nsl user manual pdf
To avoid unplanned downtime, the manual recommends a strict maintenance schedule: ) concentrations in Claus sulfur recovery units