With the rapid development of oil hydrogenation industry, the development of oil hydrogenation catalyst has also become a research hotspot. In this paper, ultrasound-assisted precipitation technique is used to prepare Ni/Al2O3 catalyst. The effect of ultrasonic output power on catalyst performance is investigated. The prepared catalyst is applied to the hydrogenation reaction of castor oil. It is found that the prepared catalyst shows the best hydrogenation performance when ultrasonic output power, frequency and ultrasonic treatment time are 80 W, 40 kHz and 600 min respectively. It also indicates that ultrasound-assisted precipitation technique can reduce the particle size and increase the specific surface area of Ni/Al2O3 catalyst so that its activity is improved. In addition, six important elements that should be considered in the development of industrial oil refining catalysts are discussed, and the effects of these factors on the catalyst performance are discussed. Finally, new way for improving catalyst performance is given, and the application of some new materials and methods in oil refining is introduced.

中文翻译：

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超声辅助沉淀法制备Ni / Al2O3催化剂的研究。

随着石油加氢工业的飞速发展，石油加氢催化剂的发展也成为研究热点。本文采用超声辅助沉淀技术制备了Ni / Al2O3催化剂。研究了超声输出功率对催化剂性能的影响。制备的催化剂用于蓖麻油的氢化反应。结果表明，当超声输出功率，频率和超声处理时间分别为80 W，40 kHz和600 min时，制得的催化剂具有最佳的加氢性能。这也表明超声辅助沉淀技术可以减小Ni / Al2O3催化剂的粒径并增加其比表面积，从而提高其活性。此外，讨论了工业炼油催化剂开发中应考虑的六个重要因素，并讨论了这些因素对催化剂性能的影响。最后，提出了提高催化剂性能的新方法，并介绍了一些新的材料和方法在炼油中的应用。