Abstract: Steam stripping is an indispensable link in the diesel refining process.By means of micro high-speed camera technology,the microscopic formation process of diesel water-in-oil emulsion under the action of water vapor is revealed.The sedimentation and stability of the emulsion is characterized by water content,turbidity,transmittance and the particle size distribution of water droplets.The water content bottleneck of the free sedimentation of the emulsion is about 200 ppm for the first time.Further,the temperature change impacting the appearance of low water content diesel emulsion is analyzed quantitatively.It is found that the critical back-turbid water content of the emulsion is about 90 ppm.The research results have improved the understanding of the stripped diesel containing emulsified water,and provided important reference for the index of the appearance and the water content of diesel oil.
王志强, 王磊, 卢浩, 杨强. 加氢精制柴油降温返浑的临界条件研究[J]. 现代化工, 2020, 40(12): 93-96.
WANG Zhi-qiang, WANG Lei, LU Hao, YANG Qiang. Critical conditions for cooling back to turbidity of hydrofining diesel oil. Modern Chemical Industry, 2020, 40(12): 93-96.
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