Abstract:

To address the issues of frequent clogging and short operation cycles in the purification unit of styrene extraction plant, this study systematically analyzed the main factors contributing to the blockage in key components of the unit, including process temperature, decolorizing agent concentration, and reaction residence time, based on polymerization reaction mechanisms. Through measures such as optimizing the injection concentration of the decolorizing agent, improving the performance of polymerization inhibitors, and strengthening the control of process parameters, the clogging in the purification system was effectively mitigated. Following the implementation of these optimizations, the continuous operation cycle of the unit has been extended to over two years. This not only maintains the environmental advantage of avoiding the discharge of high-salinity wastewater, but also significantly enhances production stability and economic benefits. The study demonstrates that targeted process adjustments based on polymerization mechanisms are crucial for ensuring the long-term, stable operation of this green decolorization technology.

Key words: styrene extraction;polymerization mechanism analysis, optimization measure