Solvent condensation and reflux cause caking of the material inside the tank
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Process design: The solvent used is dichloromethane. Steam is introduced into the material containing dichloromethane, causing the dichloromethane to vaporize; it then condenses in a gas-phase condenser. However, a problem arises: when the temperature drops, dichloromethane reflows excessively, leading to the material inside the tank sticking together again. Under the influence of steam, large clumps form, which can block the discharge pipelines or filters. Seeking advice on how to resolve this issue.
【Severe dichloromethane reflux】 is caused by poor heat retention. 【Formation of large lumps under the action of steam】is due to substandard water vapor, which contains metal ions (alkali metals).