Analytical Instrumentation for Refining Operations
Measurement solutions for sulfur control, product quality, sulfur recovery, fired equipment, process water, wastewater, materials verification, and plant gas flow.

Measurement confidence across refinery process and utility systems
Refineries depend on timely, defensible measurements to manage feed variability, conversion processes, sulfur removal, finished-product quality, fired equipment, utilities, and environmental performance. The measurement system must operate reliably within demanding process conditions while remaining practical to calibrate and maintain.
Blue Dragon Technology supports refinery applications through online sulfur and hydrogen sulfide analyzers, sulfur-recovery monitoring, organic-carbon and oil-in-water measurement, elemental analysis, engineered temperature assemblies, and industrial gas-flow instruments. Each configuration is reviewed against the actual stream, installation, method, response-time requirement, and plant maintenance strategy.
Measurement challenges in this industry
Product and process sulfur control
Measure total sulfur in feed, intermediate, and finished streams to support process control and product-quality objectives.
Hydrogen sulfide and gas treating
Track hydrogen sulfide where gas quality, treatment performance, corrosion risk, or safe handling requires reliable monitoring.
Sulfur recovery performance
Monitor tail-gas and sulfur-ratio conditions to support stable operation and recovery-unit optimization.
Fired-equipment temperature
Measure tube-wall and multipoint temperatures to support safe heater, furnace, reformer, and boiler operation.
Water and effluent quality
Monitor organic loading, oil contamination, and turbidity in process water, utility water, and wastewater systems.
Flow and material integrity
Measure plant gas flows and verify alloys or components during inspection, maintenance, and turnaround activities.
Typical process areas and streams
- Crude and vacuum distillation units
- Hydrotreating, hydrocracking, and conversion units
- Gas treating, sulfur recovery, and tail-gas treatment
- Fuel blending, storage, product transfer, and terminals
- Fired heaters, reformers, boilers, and steam systems
- Cooling water, boiler water, process water, and wastewater treatment
- Maintenance, inspection, quality-control, and refinery laboratories
Applications used in this industry.
Online Total Sulfur Measurement
Continuous total-sulfur measurement for representative liquid or gas samples in process, product-quality, and treatment applications.
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Hydrogen Sulfide Measurement
Specific H2S measurement for gas treatment, product quality, process monitoring, and safe handling applications.
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Sulfur Recovery & Tail Gas Monitoring
Process-gas measurement for sulfur recovery, tail-gas treatment, sulfur-ratio control, and plant optimization.
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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.
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Gasket-Mount Surface Temperature Measurement
Engineered surface-temperature measurement using a gasket-mounted thermocouple arrangement for suitable flanged equipment and process connections.
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Industrial Gas Flow Measurement
Ultrasonic gas-flow measurement for inline and insertion applications across natural gas, process gas, fuel gas, flare, vent, and high-temperature services.
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Extreme-Temperature Gas Flow Measurement
Gas-flow measurement at cryogenic or high process temperatures.
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Relevant measurement capabilities.
Explore the permanent Blue Dragon capability areas associated with this industry or application.
Blue Dragon BDT Flow Measurement Series
Ultrasonic gas-flow measurement instruments engineered and manufactured by Lauris Technologies, Canada, and supplied and supported by Blue Dragon Technology.
Explore series →Sulfur Analysis Series
Online analyzers for total sulfur, hydrogen sulfide, sulfur ratio, and sulfur recovery unit process monitoring.
Explore series →Temperature Measurement Series
Engineered temperature-measurement assemblies manufactured by MESIT, Italy, and supplied and supported by Blue Dragon Technology.
Explore series →Water Quality & Organic Carbon Series
Online and laboratory analyzers for organic carbon, oil-in-water, turbidity, wastewater, and high-purity water measurement.
Explore series →Instruments connected to this industry.
Available
BDT-SKIN Tube-Skin Thermocouples
Engineered tube-skin thermocouple assemblies for direct tube-wall temperature measurement in petrochemical heaters, boiler and superheater tubes, and other demanding thermal-process equipment.
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Available
Model 800TS Online Total Sulfur Analyzer
Industrial online total sulfur analyzer for continuous process and product-quality monitoring, with quantitative injection, UV fluorescence detection, and optional multi-stream operation.
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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.
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Coming Soon
Model 810H2S Online Hydrogen Sulfide Tape Analyzer
Online H₂S tape analyzer for continuous selective hydrogen sulfide monitoring in natural gas, refinery, petrochemical, LNG, fuel-gas, hydrogen, biogas, and other process-gas applications.
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Available
Model C610OIW Online Oil-in-Water Analyzer
Online oil-in-water monitoring system for produced water, refinery and industrial wastewater, heavy-oil contamination, process trending, and alarm applications.
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Coming Soon
Model 810H2S-TS Online Hydrogen Sulfide & Total Sulfur Tape Analyzer
Online tape analyzer for selective H₂S measurement plus Total Sulfur measurement through a dedicated heated hydrogen-conversion section.
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Available
Lauris FF1225-U Single-Port Insertion Ultrasonic Gas Flow Meter
Single-port insertion ultrasonic gas flow meter for low-velocity flare gas, storage-tank vents, process gas and replacement of conventional insertion flow meters.
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Available
Lauris FF1225-XT Extreme-Temperature Ultrasonic Gas Flow Meter
Extreme-temperature waveguide ultrasonic gas flow meter for cryogenic and high-temperature flare, process-gas, furnace, refinery, petrochemical and power-generation applications.
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Available
Model 810H2S-P Portable Hydrogen Sulfide Tape Analyzer
Portable industrial H₂S analyzer for field verification, temporary monitoring, process troubleshooting, and sheltered laboratory support, with 1 ppb resolution, one-second analysis, and configurable ppb-to-ppm ranges.
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Available
BDT-MP Multipoint Temperature Assemblies
Custom multipoint temperature assemblies with multiple thermocouple or RTD sensing points for measuring temperature profiles at defined elevations or depths within reactors, columns, vessels, tanks, and kilns.
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Available
Lauris FF1225-G Vertical-Port Insertion Ultrasonic Gas Flow Meter
Vertical-port insertion ultrasonic gas flow meter for low-velocity flare, vent, natural gas, biogas and process-gas applications where side access is limited.
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Available
Lauris FF1225-A Single-Path Inline Ultrasonic Gas Flow Meter
Single-path inline ultrasonic gas flow meter for flare gas, vent gas, associated gas, flue gas, natural gas and industrial process-gas measurement across an exceptionally wide velocity range.
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Available
Lauris FF2225-A Dual-Path Inline Ultrasonic Gas Flow Meter
Dual-path inline ultrasonic gas flow meter for flare gas, natural gas, blended gas, associated gas and industrial process streams requiring greater accuracy and measurement confidence.
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Available
Model C680 High-Temperature Combustion TOC Analyzer
Laboratory total organic carbon analyzer using 680 °C catalytic combustion, separate TC and IC reaction paths, manual microsyringe injection, and NDIR carbon-dioxide detection.
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Available
Model C620TUR Online Turbidity Analyzer
Online turbidity analyzer for continuous industrial and municipal wastewater, process-water, surface-water, intake, treatment-process, utility-water, and discharge monitoring.
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Available
BDT-GT Gasket-Mount Surface Thermocouples
Compact gasket-mount thermocouples for bolted or stud-mounted surface-temperature measurement on machinery, engines, housings, bearings, flanges, and industrial equipment.
View instrumentRelated industries.
Natural Gas & LNG
Measurement solutions for gas processing, sweetening, liquefaction, LNG quality, gas flow, utilities, and materials verification.
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Pipelines & Midstream
Application-focused instrumentation for Pipelines & Midstream, covering Pipeline gas quality, dew point, H2S and sulfur, flow, and portable verification across Transmission pipelines, compressor stations, meter stations, and terminals.
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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.
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Chemical Processing
Application-focused instrumentation for Chemical Processing, covering Trace moisture, H2S and sulfur, TOC, flow, and multipoint temperature across Reactors, columns, specialty gas systems, and utilities.
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Power Generation
Measurement systems for fuels, boiler and high-purity water, fired equipment, gas flow, materials, and conventional or nuclear generation.
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Water & Wastewater
Online and laboratory instruments for organic carbon, oil contamination, turbidity, treatment control, discharge, reuse, and water-quality investigation.
Explore →Industry questions.
Which refinery streams can be evaluated for sulfur measurement?
Potential applications include liquid hydrocarbons, process gases, fuel streams, intermediate products, and finished products. Final suitability depends on phase, composition, range, pressure, temperature, and the required method.
How should an online analyzer be selected for a refinery?
Selection should consider the measurement objective, sample conditioning, expected range, stream switching, response time, area classification, analyzer shelter, calibration method, utilities, and maintenance access.
Can temperature assemblies be engineered for existing fired equipment?
Yes. Tube-skin and multipoint assemblies can be reviewed against drawings, tube geometry, materials, routing, thermal movement, termination, and plant installation practices.
Does Blue Dragon support refinery wastewater applications?
Yes. TOC, oil-in-water, and turbidity applications can be reviewed for process monitoring, treatment control, reuse, and discharge-related measurement needs.
Discuss your refinery measurement application.
Provide the process unit, stream or equipment, measurement objective, expected range, operating conditions, hazardous-area requirements, available utilities, and project schedule.