| 摘要: |
| 采用SDT 2960 Simultaneous DSC-TGA差热-热重分析仪,考察了辽河石化炼油厂两种油浆在N2保护下的热重反应性能,在Coats-Redfern积分法的基础上,对油浆的热重反应数据进行了线性拟合,取得了令人满意的结果。两种油浆在低温区均表现为一级动力学行为,表观活化能分别为29.685 kJ/mol和32.35 kJ/mol；在高温区间均表现为二级动力学行为,表观活化能分别为71.84 kJ/mol和32.095 kJ/mol。低温区间以裂化反应为主,高温区间以缩合反应为主。 |
| 关键词: 催化裂化 油浆 热重 拟合 动力学 |
| DOI：10.3969/j.issn.1007-3426.2014.04.003 |
| 分类号:TE624.4+1 |
| 基金项目:中石化基金项目“催化裂化油浆的综合利用”(2012010106)。 |
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| Study on the thermogravimetric reaction dynamics of two kinds of FCC slurry |
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Zhao Xiaolong, Li Huipeng, Zhao Hua, Lu Chuanzhu, Li Zhichao
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Chemical and Environmental Department,Liaoning Shihua University, Fushun 113001,Liaoning, China
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| Abstract: |
| The thermogravimetric reaction performances of two kinds of FCC slurry from Liaohe Petrochemical Refinery were studied using SDT 2960 Simultaneous DSC-TGA instrument under the protection of nitrogen. The experimental data was fitted by the Coats-Redfern integral method and satisfactory results were obtained. Both of the oil slurry follow the first order kinetics at the low temperature region,and the apparent activation energy were 29.685 kJ/mol and 32.35 kJ/mol, respectively. However, they are consistent with the secondary dynamic model in the high temperature region,and their apparent activation energy were 71.84 kJ/mol and 32.095 kJ/mol, respectively. Cracking reaction mainly occurs at the low temperature region,while condensation reaction does at the high temperature region. |
| Key words: FCC slurry thermogravimetric fitted dynamics |
