Phase change in dewaxing of crude oil is controlled at a certain temperature where solids are dissolved in the fluid producing hazy appearance called cloud point formed by the processes of precipitation. Ultrasound techniques was applied in Indian crude oil to confirm an optimum blended chemical which changes the thermo dynamical equilibrium  with a suitable operating environment capable to decrease the cloud point temperature to improve the quality of crude oil analysis. Three solvent to crude oil ratios of 10:1, 15:1 and 20:1 within 10°C to 50°C range were ultrasonically treated with solvent blends verified experimentally as separated bright spots with black background. The dewaxing process was compared with two different diluents in a common extractant in terms of the efficiency of extraction and microscopic observation for wax appearance in crude oil. The data recorded with diluents of low carbon chain was found more suitable as compared to immediate higher carbon chain and discussed in terms of different influencing factors like oil solvent ratio, effect of temperature, settling time and influence of ultrasonic wave.

中文翻译：

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原油行业脱蜡浊点的溶剂处理

原油脱蜡过程中的相变控制在一定温度下，在该温度下，固体溶解在流体中，产生了由沉淀过程形成的浊点，称为浊点。在印度原油中应用了超声波技术，以确认最佳的混合化学品，该化学品可在适当的操作环境下改变热力学平衡，从而降低浊点温度，从而改善原油分析的质量。在10°C至50°C的温度范围内，将三种溶剂与原油的比例为10：1、15：1和20：1的超声波混合，并用溶剂混合物进行超声处理，该混合物经过实验验证为具有黑色背景的分离的亮点。在萃取效率和显微镜下观察原油中蜡的外观方面，将脱蜡过程与普通萃取剂中的两种不同稀释剂进行了比较。发现与低碳链相比，低碳链稀释剂记录的数据更合适，并根据不同的影响因素进行了讨论，例如油溶剂比，温度的影响，稳定时间和超声波的影响。