克拉玛依稠油性质评价与氧化燃烧动力学参数估算

发布时间：2019-05-16 22:29

【摘要】：针对克拉玛依A1区稠油油样,本实验对其基本性质进行了评价并采用热重分析仪,在空气条件下,对65?C~600?C升温过程中稠油的氧化燃烧特性进行了研究.研究结果表明:随着温度的升高,该稠油试样在空气气氛中的热转化过程经历了低温氧化(LTO)、燃料沉积(FD)和高温氧化(HTO)三个过程;三个过程的失重率分别达到26.9%、6.5%、54.2%,说明在有氧氛围中主要发生高温氧化燃烧反应,温度达590?C后氧化燃烧过程结束.动力学参数估算结果:低温氧化阶段,活化能为22.36 k J/mol,指前因子为2.68 min-1;高温氧化阶段,活化能为81.90 k J/mol,指前因子为1.40×105min-1.
[Abstract]:The basic properties of the heavy oil in the Karamay A1 region are evaluated and the thermogravimetric analyzer is used to study the oxidation and combustion characteristics of the heavy oil during the temperature rise of 65 掳 C to 600 掳 C under the condition of air. The results show that, with the increase of the temperature, the thermal conversion process of the heavy oil sample in the air atmosphere has experienced three processes of low temperature oxidation (LTO), fuel deposition (FD) and high temperature oxidation (oxidation). The weight loss rate of the three processes is 26.9%, 6.5% and 54.2%, respectively. The high-temperature oxidation and combustion reaction is mainly occurred in the aerobic atmosphere, and the oxidation and combustion process after the temperature of 590 掳 C is over. The kinetic parameters are estimated at the low temperature oxidation stage, the activation energy is 22.36k J/ mol, the leading factor is 2.68 min-1, the activation energy of the high temperature oxidation stage is 81.90k J/ mol, and the front factor is 1.40 to 105 min-1.
【作者单位】：新疆大学化学化工学院;新疆大学煤炭清洁转化与化工过程自治区重点实验室;中国石油新疆油田分公司工程技术研究院;
【基金】：新疆维吾尔自治区重点实验室开放课题(2015KL022) 新疆维吾尔自治区高校科研项目(XJEDU2013I08) 校企联合项目(209-62178)
【分类号】：TE345

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