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Description
Agilent 8890 Refinery Gas Analysis (RGA) GC System for ASTM D1945
Agilent 8890 Refinery Gas Analysis (RGA) GC System for ASTM D1945 is configured for the determination of permanent gases and light hydrocarbons in complex gas streams. This system is optimized for ASTM D1945 workflows and can be adapted for additional gas composition methods used in refinery, natural gas, and petrochemical environments.
This system is designed to measure hydrogen, oxygen, nitrogen, carbon monoxide, carbon dioxide, and hydrocarbons from methane (C1) through C6+ fractions. A multi-valve architecture enables advanced separation techniques such as heart-cutting and backflushing for efficient gas analysis.
In addition to ASTM D1945, this configuration is compatible with related gas analysis methods including ASTM D7833 (refinery gas), GPA 2261 (natural gas composition), and ASTM D2598, depending on column configuration and calibration. This flexibility makes the system suitable for refinery gas analysis (RGA), natural gas testing, and petrochemical process monitoring. This Agilent 8890 RGA GC System is widely used for process control, quality assurance, and compositional analysis in industries requiring accurate and repeatable gas measurement.
Agilent 8890 Refinery Gas Analysis (RGA) GC System for ASTM D1945 has been fully tested and verified to be in proper working condition by Alliant Scientific.
Includes:
- Agilent 8890 GC System
- Split/Splitless Inlet (SSL)
- Flame Ionization Detector (FID)
- Dual Thermal Conductivity Detector (TCD)
- Dual 6 Port Valve
- 10 Port Valve
- 14 Port Valve
- Data System
- 90-Day Warranty Coverage
Disclaimer:Â All brand names and trademarks are the property of their respective owners and are used for identification only. We are not an authorized dealer. Software, if included, is not transferable or upgradable.
Technical Specifications
- System Type: Refinery Gas Analyzer (RGA) Gas Chromatography System
- Base Platform: Agilent 8890 Gas Chromatograph
- Configuration: Multi-dimensional GC with valve switching and column backflush capability
- Method Compatibility: ASTM D1945, ASTM D7833, GPA 2261, ASTM D2598 (configuration dependent)
- Primary Application: Permanent gas and light hydrocarbon analysis
- Analytical Range: Hydrogen, O₂, N₂, CO, CO₂ and C1–C6+ hydrocarbons
- Injection System: Gas sampling valve with fixed loop injection
- Sample Introduction: Automated valve-based gas injection
- Valve Configuration: Multi-valve switching system for flow path control
- Valve Functions: Sample injection, heart-cutting, and backflush operation
- Separation Technique: Multi-dimensional gas separation using column switching
- Column Types: Molecular sieve and porous polymer columns
- Column Function: Separation of permanent gases and hydrocarbon fractions
- Carrier Gases: Helium (He), Nitrogen (Nâ‚‚)
- Flow Control: Electronic pneumatic control (EPC)
- Oven Control: Programmable temperature ramping for optimized separation
- Reproducibility: High retention time stability for gas composition analysis
- Detection Capability: Permanent gas quantification and hydrocarbon profiling
- Dynamic Range: Wide linear range for quantitative compositional analysis
- Automation: Fully automated valve timing and analysis sequence control
- Application Environment: Laboratory and process control settings
- Power Requirements: 100 – 240 V, 50/60 Hz
- System Dimensions (H × W × D): Approx. 44 × 68 × 63 cm
- System Weight: Approx. 45 – 60 kg
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Additional information
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Key Features
- Supports ASTM D1945, ASTM D7833, GPA 2261, and related gas composition workflows
- Simultaneous analysis of permanent gases and light hydrocarbons (C1–C6+)
- Multi-valve architecture enables heart-cutting and backflush techniques for optimized separations
- Accurate quantification of Hâ‚‚, Oâ‚‚, Nâ‚‚, CO, COâ‚‚ and hydrocarbon fractions
- Optimized column configuration for molecular sieve and porous polymer separations
- High reproducibility for refinery, petrochemical, and natural gas quality control labs
- Suitable for continuous process monitoring and routine laboratory analysis
- Flexible configuration allows adaptation to multiple gas analysis methods
- Designed for high-precision compositional analysis in complex gas streams
Applications
- ASTM D1945 – permanent gas composition analysis
- ASTM D7833 – refinery gas analysis (RGA) workflows
- GPA 2261 – natural gas composition analysis
- ASTM D2598 – light hydrocarbon gas analysis
- Refinery Gas Analysis (RGA) – process stream monitoring in petrochemical facilities
- Natural Gas Composition – determination of methane through C6+ fractions
- Fuel Gas Analysis – composition measurement for combustion and process optimization
- Petrochemical Process Monitoring – continuous gas stream analysis
- Hydrogen & Permanent Gas Analysis – measurement of H₂, O₂, N₂, CO, CO₂
- C1–C6+ Hydrocarbon Profiling – paraffin and olefin separation
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Frequently Asked Questions
What specific analysis is this GC system designed for?
This system is configured as a refinery gas analyzer (RGA) for measuring permanent gases and light hydrocarbons in petrochemical and refinery streams.
Which standard methods can this system support?
It is suitable for methods such as ASTM D1945 and similar standards for permanent gas and hydrocarbon composition analysis, depending on column selection and calibration.
Why does this system use both TCD and FID detectors?
TCD detectors are used for permanent gases such as hydrogen, nitrogen, and carbon dioxide, while the FID is used for sensitive and accurate hydrocarbon quantification.
What is the purpose of the multi-valve system?
The valve system controls gas flow paths, enabling advanced techniques such as heart-cutting and backflushing to improve separation efficiency and reduce analysis time.
Can this system measure both light and heavy hydrocarbons?
Yes, it is designed to analyze a wide range of hydrocarbons from methane (C1) through heavier fractions (C6+), depending on column configuration.
Is this system suitable for continuous process monitoring?
Yes, refinery gas analyzer configurations like this are commonly used for continuous monitoring and quality control in petrochemical and refinery environments.
What industries typically use this configuration?
This system is widely used in petroleum refining, natural gas processing, petrochemical manufacturing, and environmental monitoring laboratories.
