This document describes the method of fast refinery gas analysis using the Agilent 490 Micro GC QUAD. The authors demonstrate the analysis results obtained in about two minutes through experimental results. The document also introduces the features of the equipment and the materials used.
The document details the application of the Agilent 490 Micro GC QUAD for the precise analysis of refinery gases, which vary significantly in composition and source. The portable instrument allows for rapid analysis, with results obtained in approximately two minutes. The note covers the analysis of various gas streams, including fluid coking overheads, ethylene, propylene, fuel gas, stack gas, and off gas.
| Analysis Time | about two minutes |
|---|---|
| Channel 1 Column | Agilent J&W CP-Molsieve |
| Channel 2 Column | Agilent J&W PoraPLOT U |
| Channel 3 Column | Aluminum oxide |
| Channel 4 Column | Agilent J&W CP-Sil 5 CB |
| Channel 1 Injector Temp | 110 °C |
| Channel 1 Column Temp | 80 °C |
| Channel 1 Carrier Gas | Argon |
| Channel 1 Column Head Pressure | 150 kPa |
| Repeatability RSD | around 0.1% |
The analysis results are obtained in about two minutes.
The CP-Molsieve channel (Channel 1) is used to separate and analyze permanent gases except for carbon dioxide.
The repeatability results show RSDs around 0.1% with no drift.