I would like to ask experts in ethylene plants for a method to analyze the content of aldehydes in pyrolysis gas. Thank you
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I would like to ask the experts and specialists: are there any methods or reagents for analyzing the content of aldehydes in ethylene cracking gas (before it enters the alkali scrubber tower)? Preferably, simple reagents that can be used for direct measurement on-site. Thank you all!
High-performance liquid chromatography (HPLC) can be used to analyze the content of aldehydes in the pyrolysis gas. First, pyrolysis gas samples need to be collected, and impurities must be removed through appropriate pretreatment, after which HPLC is used for analysis. This method has high accuracy and repeatability. For on-site direct measurements, a portable gas chromatograph (GC) can be considered for testing; such devices are relatively lightweight and can provide rapid analysis results. It should be noted that the equipment must be calibrated before use to ensure the accuracy of measurements. .