Let’s discuss together the reasons for foaming in aromatic hydrocarbon extraction solvents:

These are the several possible reasons for foaming in aromatic extraction solvents: 1. The solvent is too dirty, resulting in poor regeneration efficiency. When there are large amounts of impurities in the solvent, these impurities may cause the solvent to foam. 2. The solvent contains a high level of non-aromatics or olefins. If there are large amounts of non-aromatic or olefinic substances in the solvent, this may cause foaming to occur during its operation. 3. The defoamer was not injected regularly. The function of an antifoaming agent is to prevent the solvent from bubbling. If no defoamer is added for an extended period of time, the solvent is prone to foaming. 4. The solvent contains too much water. Moisture can affect the properties of the solvent, easily causing foaming problems. 5. Frequent raw material changes, resulting in large operational fluctuations. If the raw material is changed frequently or the operating range is too large during the extraction process, it may cause changes in the substances present in the solvent, thereby leading to foaming. To address these issues, we can take the following measures: 1. Regularly clean and regenerate the solvent to ensure its good quality. 2. Control the levels of non-aromatics and olefins to ensure the purity of the solvent. 3. Regularly inject defoamers to prevent the solvent from foaming. 4. Control the moisture content in the solvent to ensure it meets the specified standards. 5. Reduce the frequency of raw material changes, stabilize the operating range, and avoid issues such as solvent variations and foaming. .