What are the components of the total C4 fraction after ether chromatography analysis?
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I would like to know what the full component analysis of C4 is after chromatographic analysis of ethers, and specifically what the components of C5 are. Can C5 be analyzed by peak integration? Is there a difference between external standards and area values? . . . Need help.
In the MTBE process, the composition of carbon 4 after etherification includes methanol, n-/i-butane, n-/i-butylene, and carbon 5. If the chromatography column system is properly configured, carbon 5 can appear as a single component, which is achieved by backflushing carbon 5 and heavier components, thereby increasing the analysis speed. The poster can ask the manufacturers of online chromatography; they will have ready-made solutions. I have worked on similar projects before, but due to technical reasons related to my former employer, it’s not convenient to share them freely. In online chromatographic analysis, external standard quantification is generally used, but for heavier hydrocarbon compositions, it is not possible to achieve high pressures for the external standard samples.
Methanol, n-/i-butane, n-/i-butylene, C5.