Sulfur Recovery & Tail Gas Monitoring
Measure key sulfur-recovery and tail-gas conditions to support stable operation, sulfur-ratio control, treatment performance, and plant optimization.
Measurement around sulfur-recovery and tail-gas systems
Sulfur-recovery units and tail-gas treatment systems depend on representative, responsive process-gas measurements. The required measurement may involve tail-gas composition, sulfur ratio, residual sulfur species, treatment performance, or other unit-specific control objectives.
System design must account for hot, wet, corrosive, sulfur-bearing gas, sample extraction, conditioning, transport, plugging risk, response time, calibration, sheltering, and maintainability. The final analyzer method is selected from the confirmed process objective and delivered configuration.
What the application needs to establish
Provide timely process-gas information that supports sulfur-recovery control, tail-gas treatment, sulfur-ratio management, troubleshooting, and operating optimization.
Why the measurement matters
Stable operation
Maintain the measurement visibility needed for consistent sulfur-recovery performance.
Ratio control
Support control of the relevant sulfur-gas relationship where the process requires it.
Tail-gas treatment
Evaluate treatment-system performance and changing process conditions.
Troubleshooting
Identify abnormal feed, combustion, conversion, or treatment behavior.
Maintenance planning
Recognize sampling, analyzer, or process conditions that require attention.
How the measurement is approached
Tail-gas systems continuously determine the configured H2S and SO2 measurements required for sulfur-recovery monitoring. Ratio and performance calculations depend on the ordered analyzer configuration, sample system, stream conditions, and project control philosophy.
Typical operating locations
- Claus sulfur-recovery units
- Tail-gas treatment units
- Acid-gas and process-gas systems
- Sulfur-ratio measurement points
- Analyzer shelters and heated sample systems
- Commissioning, optimization, and troubleshooting locations
Instrument-selection considerations
- Target species, ratio, and process-control objective
- Gas composition, sulfur vapor, moisture, and corrosive components
- Sample-probe location and extraction temperature
- Heated transport, filtration, conditioning, and disposal
- Response time and control-system integration
- Calibration, verification, and maintenance access
- Area classification, shelter, utilities, and materials
Where this application is used.
Natural Gas & LNG
Measurement solutions for gas processing, sweetening, liquefaction, LNG quality, gas flow, utilities, and materials verification.
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Sulfur Recovery & Gas Treating
Application-focused instrumentation for Sulfur Recovery & Gas Treating, covering H2S, SO2, sulfur ratio, tail gas, and gas moisture across Amine units, Claus SRU, tail gas, and incinerator.
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Petrochemicals
Measurement systems for petrochemical feedstocks, reaction processes, fired equipment, utilities, effluent, gas flow, and material quality.
Explore →Relevant measurement capabilities.
Explore the permanent Blue Dragon capability areas associated with this industry or application.
Sulfur Analysis Series
Online analyzers for total sulfur, hydrogen sulfide, sulfur ratio, and sulfur recovery unit process monitoring.
Explore series →Instruments connected to this application.
Coming Soon
Model 820TGA Online Tail Gas Analyzer
Online tail-gas analyzer for sulfur recovery unit process monitoring, H₂S and SO₂ measurement, calculated sulfur ratio, and SRU performance applications.
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Coming Soon
Model 800RS Online Sulfur Ratio Analyzer
Online sulfur-ratio analyzer for continuous H₂S and SO₂ measurement, calculated H₂S-to-SO₂ ratio, and SRU air-demand control integration.
View instrumentRelated applications.
H2S / SO2 Ratio Measurement
Measurement and calculation of H2S-to-SO2 ratio in SRU tail gas.
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Sulfur Ratio / Air-Demand Control
Sulfur-ratio measurement supporting Claus air-demand control.
Explore →Application questions.
What information is needed for a tail-gas analyzer review?
Provide the process scheme, target species or ratio, expected composition and range, pressure, temperature, moisture, sulfur conditions, sample location, required response time, and control objective.
Why is the sample system especially important?
Sulfur-bearing tail gas may be hot, wet, corrosive, and prone to condensation or deposition. Probe design, heating, transport, filtration, conditioning, and disposal are integral to the measurement.
Is the analyzer used for direct process control?
It may support control or optimization, but the control philosophy, response time, validation, redundancy, and failure handling must be defined by the plant and project engineer.
Which Blue Dragon model is appropriate?
The Model 820TGA and Model 800RS address different sulfur-recovery measurement objectives. Selection depends on the target components, ratio, range, method, and control requirement.
Discuss your sulfur-recovery or tail-gas application.
Provide the process scheme, target measurement, expected gas composition and range, sample temperature and pressure, response-time need, shelter, utilities, and project schedule.