Methanol synthesis from coal gas, crude methanol components
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I would like to ask the experienced experts: is there any qualitative analysis for the components of crude methanol produced by coal gasification for methanol synthesis (Lurgi reactor, copper-based catalysts)? Take some inspiration!
In the process of producing methanol from coal gas, crude methanol contains not only methanol as its main component, but also impurities such as water, aldehydes, ketones, esters, and higher alcohols. The specific component analysis must be determined through chemical analyses in the laboratory; common analysis methods include gas chromatography (GC), mass spectrometry (MS), infrared spectroscopy (FTIR), etc. The actual composition depends on the gasification process, syngas purification, and methanol synthesis conditions. .
I was unable to fully understand what the author meant by qualitative analysis Even for crude methanol, it would be great to use chromatographic analysis, as it allows for both qualitative and quantitative analysis. Moreover, chromatographs are not expensive these days, so ordinary laboratories can easily equip themselves with them. It’s much more reliable than a qualitative test alone.
We only have a chromatograph, which cannot determine the nature of the substance; to be precise, we don’t know what’s inside it
This post was last edited by qugd on 2024-2-2 at 13:09. Find someone around you who is familiar with chromatographic analysis; after learning about the setup of chromatography, particularly the properties of the chromatography columns and the analysis conditions, analyze the chromatograms and data. Have a professional interpret these chromatograms and data, as this will help in understanding the results of the sample analysis. Asking online can only provide you with a general explanation; in the absence of any spectra or analysis parameters, even highly experienced professionals cannot give accurate and reliable results. At the very least, a standard sample should be prepared to conduct basic qualitative and quantitative analyses.
The simplest way is to contact a chromatography manufacturer; they usually offer ready-made columns for sale. You can inquire with them – it just involves spending some money.