In the extraction of components with the phenomena of thermal runaway, choosing the critical temperature can lead to a greater diffusion coefficient.
对可能发生热失控现象的物质进行提取时，萃取温度应选择在临界温度附近，此时扩散系数较大。
RESULTS: Coefficient of mass transfer was slowly increased as the extraction temperature elevated, and was in accord with flow and in contrast with pressure.
结果本法在萃取川芎挥发油得到的传质系数随着温度的升高略为增大，随着流量的增大而增大，随着压力的增大而减少。
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