Accurate measurement of carbon monoxide and carbon dioxide is essential in petrochemical, hydrogen, and industrial gas applications. Even trace levels of CO and CO2 can drastically impact product quality, catalyst performance, and overall process efficiency. Reliable and sensitive analysis is therefore critical for both process control and final product certification.
The GAS CO-CO2 Analyser is a customised, high-precision solution designed specifically to address these challenges. Operating on the principle of methaniser-FID technology, the instrument integrates a high-performance diaphragm valve for injection and back-flushing, two packed columns, a methaniser, and a Flame Ionisation Detector (FID). During operation, the first column (Hayesep) separates the components of interest from the bulk gas—which is then effectively removed via back-flushing—while the second column further separates the target components. The methaniser converts any present CO and CO2 into methane, allowing the FID to accurately and selectively detect these impurities at sub-ppm levels.
With a fast runtime of just 4.5 minutes, the system achieves a minimum detectability of less than 50 ppb and a remarkable repeatability of < 1% RSD. Built for long-term stability and high uptime, the analyser requires reduced maintenance and provides a robust solution for securing process efficiency and catalyst protection.
Benefits
UOP 603-13 Compliance: Fully aligned with industry standard methods for CO and CO2 analysis.
High Sensitivity: Detection limits down to 50 ppb for CO, CO2, and methane.
Robust Valve Technology: Diaphragm valves with internal purge offer long lifetime and reduced maintenance.
Reliable Methaniser-FID Detection: Accurate and selective detection of CO and CO2 via conversion to methane.
Flexible Configuration: Available on both benchtop GC (Thermo Trace GC1600 base) and CompactGC platforms with multiple custom options.
Additional valve for heart-cutting of high levels of methane
| Category | Specification |
|---|---|
| Analyser Base Unit | Thermo Trace GC1600 |
| Target Components | CO, CH4, CO2 |
| Supported Gas Matrices | H2, permanent gases, and hydrocarbons |
| Detector Configuration | Methaniser combined with Flame Ionisation Detector (FID) |
| Valve Type | One diaphragm gas switching valve (rotary valves optional) |
| Column Setup | 2 packed columns (e.g., Hayesep) |
| Data System | Chromeleon chromatography data system |
| Analysis Runtime | 4.5 minutes |
| Limit of Detection | < 50 ppb |
| Repeatability | < 1 % RSD |
| Optional Features | Additional valve for heart-cutting of high levels of methane |
Petrochemical Process Monitoring: Analyse CO and CO2 in ethylene, propylene and other hydrocarbon streams.
Hydrogen Purity Analysis: Detect trace levels of CO and CO2 in hydrogen for fuel cell and industrial applications.
Industrial Gas Quality Control: Verify gas composition and impurity levels in industrial gas production and distribution.
Catalyst Protection and Process Control: Monitor impurities that can affect catalyst performance and process efficiency.
Laboratory and On-Line Analysis: Suitable for both laboratory testing and continuous process monitoring.
