Quality issues of non-aromatic compounds in aromatic hydrocarbon extraction units
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Problems often arise with the quality of non-aromatic compounds in aromatic hydrocarbon extraction units, including a benzene content exceeding 0.01%； The bromine value of non-aromatic compounds is above the standard ； Please provide a correct analysis of reasons such as water contamination in non-aromatic compounds.
Based on your question, it seems the main issue is reformation; the depentanized oil has a low aromatic content and a high non-aromatic content, as well as high levels of certain components in the system. 1. This can be achieved by increasing the solvent ratio and ensuring stable extraction. 2. The bromine value of non-aromatic compounds is too high and the olefin content is high; reformation processes should involve the injection of water and chlorine. 3. Reduce the oil circulation in the wash tower appropriately