对重油燃烧过程的全面理解:反应行为,动力三重体和机制含义
Hong Yin1, Ziqiang Chen1, Yafei Chen1
1Engineering Research Center for Waste Oil Recovery Technology and Equipment, Ministry of Education, Chongqing Technology and Business University, Chongqing 400067, People's Republic of China.
ACS omega
|May 20, 2024
概括
这项研究研究了在现场燃烧 (ISC) 过程中超重油的热氧化行为,揭示了关键的动力参数和机制. 这些发现有助于人们更好地理解通过ISC提升重油回收的方法.
科学领域:
- 石油工程是石油工程中的一个.
- 化学工程是化学工程的重要组成部分.
- 燃烧科学 燃烧科学
背景情况:
- 现场燃烧 (ISC) 是重油的关键增强石油回收技术.
- 了解超重油的热氧化行为和动力学对于优化ISC至关重要.
- 之前的研究往往缺乏对超重油ISC的详细动力学分析和机械学见解.
研究的目的:
- 在ISC期间系统地研究超重油的热氧化行为,动力三重组和自由基机制.
- 为了确定压力条件对氧化过程的影响.
- 验证动力模型和预测燃烧行为,以提高重油回收.
主要方法:
- 使用多种热分析技术:热重力测量分析 (TG/DTG) 和差分扫描热度计 (DSC/PDSC).
- 采用无模型的动力学方法来计算与转换率的激活能变化.
- 在 MATLAB 中使用弗里德曼方程进行应用数学模拟,用于曲线拟合和验证.
主要成果:
- 确定了低温氧化 (LTO) 和高温氧化 (HTO) 的特定质量损失,外热强度和温度间隔.
- 与大气条件相比,加压条件显著增强了氧化和热排放.
- 确定了LTO的加速率模型和HTO的Sestak-Berggren模型是最可能的机制,通过模拟验证.
结论:
- 为超重油氧化建立了一个全面的动力三重组 (激活能量,预指数因子,反应顺序).
- 描绘了氧化机制的进化路径,提供了基本的见解.
- 该研究的结果有助于更准确的数值模拟和ISC的实际实施,以提高重油回收.
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