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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Total Organic Carbon Measurement
TOC measurement for water-quality control, contamination detection, treatment monitoring, process investigation, and laboratory analysis.
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Oil-in-Water Monitoring
Online oil-in-water measurement for produced water, process water, treatment systems, wastewater, and discharge-related monitoring.
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Tube-Skin Temperature Measurement
Engineered thermocouple measurement of external tube-wall temperature in fired heaters, boilers, reformers, furnaces, and thermal equipment.
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Multipoint Temperature Profiling
Engineered measurement of temperature at multiple elevations or positions in reactors, columns, vessels, catalyst beds, and process equipment.
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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.
Explore →Relevant measurement capabilities.
Explore the permanent Blue Dragon capability areas associated with this industry or application.
Elemental Analysis & Materials Characterization
X-ray fluorescence instruments for elemental composition, material identification, quality control, field screening, and industrial laboratories.
Explore series →Flow Measurement Series
Ultrasonic gas-flow measurement instruments 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 →Suitable instruments for this industry.
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.
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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
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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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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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 810H2S Online Hydrogen Sulfide Tape Analyzer with Total Sulfur Option
Online H₂S tape analyzer for continuous process-gas monitoring, with an optional heated conversion path for selectable total sulfur measurement.
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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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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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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.
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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Petrochemicals
Measurement systems for petrochemical feedstocks, reaction processes, fired equipment, utilities, effluent, gas flow, and material quality.
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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.