纳米催化剂辅助超稠油氧化改质实验研究

发布时间：2018-05-12 17:36

  本文选题：超稠油 + 稠油改质　； 参考：《中国科学:技术科学》2017年02期

【摘要】：超稠油开发难点在于地下大幅度降低原油黏度,催化氧化改质具有应用潜力,但需要找到兼具活性与注入能力的催化剂,研究其反应机理.通过微乳液法制备并表征了纳米过渡金属催化剂,用以辅助超稠油注空气氧化改质吞吐的对比实验,结果表明氧化改质能够大幅度降低超稠油黏度,降黏率最高达99.86%,纳米金属催化下的改质温度降至240℃,改质速率与产油效果均显著优于微米级粉末催化剂,实验推测了氧化改质反应在不同温度下的四步机理,包括杂元素断链、初步氧化、深度氧化与高温脱羧.与加氢还原改质超稠油相比,纳米催化氧化改质更具有降黏效果好、成本低、易实施的特点,具有一定的工业应用潜力.
[Abstract]:The difficulty in the development of super heavy oil is to reduce the viscosity of crude oil by a large margin and to improve the quality of oil by catalytic oxidation. However, it is necessary to find a catalyst with both activity and injection ability and study its reaction mechanism. Nano-transition metal catalysts were prepared and characterized by microemulsion method, which were used to assist the comparison experiment of air injection oxidation and puff. The results showed that the oxidation modification could greatly reduce the viscosity of super heavy oil. The highest viscosity reduction rate was 99.86, and the modification temperature was reduced to 240 鈩，

本文编号：1879512