| 贫氧条件下正癸烷在Pt/ZSM-5上的催化燃烧特性 |
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| 引用本文： | 徐露,周俊虎,张兴,朱晓宇,姚彦伊,杨卫娟.贫氧条件下正癸烷在Pt/ZSM-5上的催化燃烧特性[J].化工进展,2022,41(1):146-152. |
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| 作者姓名： | 徐露 周俊虎 张兴 朱晓宇 姚彦伊 杨卫娟 |
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| 作者单位： | 浙江大学能源清洁利用国家重点实验室，浙江 杭州 310027 |
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| 基金项目： | 国家自然科学基金（51876189）； |
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| 摘 要： | 航空煤油实际燃烧过程中往往存在高化学当量比（Φ）的贫氧条件，导致航空煤油着火困难、燃烧效率较低。本文以航空煤油一元替代燃料正癸烷为燃料，实验研究了贫氧条件下（Φ=2~4）微圆管内Pt/ZSM-5催化剂和石英砂填充床中正癸烷的贫氧催化/无催化燃烧特性，分析了当量比（Φ=2~4）、温度（300~450℃）和催化剂对正癸烷转化率、燃烧效率以及气相产物分布特性的影响。结果表明：Pt/ZSM-5催化剂对正癸烷燃烧反应的促进作用明显，存在温度激增现象，当量比Φ从2增大到3.5时，动态着火点从196℃上升到271℃，而无催化则没有明显的着火点。贫氧催化条件下正癸烷的转化率始终低于无催化条件，但燃烧效率明显高于无催化。正癸烷催化燃烧的主要气相产物为CO2，无催化的主要气相产物则为CO和烯烃。
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| 关 键 词： | 正癸烷 催化燃烧 贫氧 热裂解 燃烧效率 |
| 收稿时间： | 2021-01-26 |
Catalytic combustion characteristics of n-decane on Pt/ZSM-5 under oxygen deficient conditions |
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| XU Lu,ZHOU Junhu,ZHANG Xing,ZHU Xiaoyu,YAO Yanyi,YANG Weijuan.Catalytic combustion characteristics of n-decane on Pt/ZSM-5 under oxygen deficient conditions[J].Chemical Industry and Engineering Progress,2022,41(1):146-152. |
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| Authors: | XU Lu ZHOU Junhu ZHANG Xing ZHU Xiaoyu YAO Yanyi YANG Weijuan |
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| Affiliation: | State Key Laboratory of Clean Energy Utilization，Institute for Thermal Power Engineering，Zhejiang University，Hangzhou 310027，Zhejiang, China |
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| Abstract: | The actual combustion process of aviation kerosene often has high stoichiometric ratio (Φ) oxygen-lean conditions. In this paper, n-decane was used as a one-element alternative fuel of aviation kerosene, and the oxygen-depleted catalytic/non-catalytic combustion characteristics of n-decane in micro tube with Pt/ZSM-5 catalyst or quartz sand packed bed were experimentally studied under oxygen-lean conditions (Φ=2—4). The effects of equivalence ratio (Φ=2—4), temperature (300—450℃) and catalyst on the conversion rate of n-decane, combustion efficiency and gas phase product distribution were analyzed. The results showed that the Pt/ZSM-5 catalyst had an obvious promotion effect on the combustion reaction of n-decane, and there was a phenomenon of temperature surge. When the equivalence ratio Φ increased from 2 to 3.5, the dynamic ignition point rised from 196℃ to 271℃; while without catalysis, there was no obvious point of ignition. The conversion rate of n-decane under the oxygen-lean catalysis condition was always lower than that under the no catalysis condition, but the combustion efficiency was significantly higher than that under the no catalysis condition. The main gas-phase product of catalytic combustion of n-decane was CO2, and the main gas-phase product without catalysis was CO and olefins. |
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| Keywords: | n-decane catalytic combustion oxygen-lean thermal cracking combustion efficiency |
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