The research for increasing the performance of novel technologies for the production and upgrading of heavy crude oil reserves through the development and selection of adequate catalyst precursors and hydrogen donors has been raised to address the growing energy demand. Studies based on complex kinetic models are required to achieve a better understanding of the effect of hydrogen donors and their reaction mechanisms for the aquathermolysis of heavy crude oil. In this study, the kinetic effect of decalin as a hydrogen donor on aquathermolysis of heavy crude oil was analyzed under a temperature range of 250–300 °C, a water/oil ratio of 3:7, and reaction periods of up to 72 h. A five-lump kinetic model was developed to study the reaction behavior of the SARA fractions and gas production, where the calculated kinetic parameters provided an adequate agreement with average absolute error values lower than 5% concerning experimental data. The model results indicated that in experiments in the presence of decalin, the conversion of asphaltenes presents a higher selectivity toward resins and aromatic compounds. On the other hand, the formation of secondary asphaltenes produced from resins is inhibited, showing an improvement in the selectivity of aromatic compounds from this fraction.

中文翻译：

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氢供体存在下重质原油非催化水热解动力学


为了满足不断增长的能源需求，人们提出了通过开发和选择适当的催化剂前体和氢供体来提高重质原油储量生产和升级新技术性能的研究。需要基于复杂动力学模型的研究来更好地了解氢供体的影响及其对重质原油水热解的反应机制。在这项研究中，分析了十氢萘作为氢供体在250-300℃温度范围、水/油比为3:7、反应时间长达72小时下对重质原油水热解的动力学影响。 。开发了五块动力学模型来研究 SARA 馏分和气体生产的反应行为，其中计算的动力学参数与实验数据的平均绝对误差值低于 5% 充分吻合。模型结果表明，在十氢化萘存在的实验中，沥青质的转化对树脂和芳香族化合物呈现出更高的选择性。另一方面，由树脂产生的次级沥青质的形成受到抑制，这表明该馏分中芳香族化合物的选择性有所提高。