| 废轮胎内构件固定床热解过程优化 |
| Pyrolysis Process Optimization of Waste Tire in Fixed-bed Reactor with Internals |
| 投稿时间：2020-06-08 修订日期：2020-06-08 |
| DOI：10.12136/j.issn.1000-890X.2020.12.0933 |
| 中文关键词: 废轮胎 热解 内构件固定床 优化 真空度 颗粒床层厚度 热解油 收率 |
| 英文关键词: waste tire pyrolysis fixed-bed reactor with internals optimization vacuum degree particle bed thickness pyrolysis oil yield |
| 基金项目:国家自然科学基金资助项目（U1903130） |
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| 中文摘要: |
| 通过分析废轮胎内构件固定床热解过程真空度和颗粒床层厚度对热解油收率和组成的影响，探讨废轮胎热解过程优化。结果表明：增大热解真空度和减小颗粒床层厚度均可促进热解油气更快地导出反应器，尽可能避免挥发分二次反应，从而显著提高热解油收率，但热解油中汽油馏分占比降低，馏分油占比升高；热解过程优化后（真空度为－5 kPa，颗粒床层厚度为10 mm），热解温度对热解油收率和组成影响不明显，热解温度为550～900 ℃时，热解油收率始终保持在50.1%～51.6%（格金分析油收率在95%以上），热解油中各组分占比无明显变化。 |
| 英文摘要: |
| By analysing the effects of vacuum degree and particle bed thickness on the yield and composition of pyrolysis oil during pyrolysis process of waste tire in fixed-bed reacter with internals，the optimization of pyrolysis process of waste tire were investigated.The results showed that，increasing the pyrolysis vacuum and reducing the particle bed thickness could promote the pyrolysis oil and gas to flow out of the reactor faster，and avoid the secondary reaction of volatile matter as far as possible，so as to significantly improve the yield of pyrolysis oil.However，the proportion of gasoline fraction in the pyrolysis oil decreased，and that of distillate fraction increased.After optimization of pyrolysis process（vacuum degree was －5 kPa，particle bed thickness was 10 mm），the pyrolysis temperature had no obvious effect on the yield and composition of pyrolysis oil.When the pyrolysis temperature was 550～900 ℃，the yield of pyrolysis oil was kept at 50.1%～51.6%（Gejin analysis oil yield was above 95%），and the proportion of each component in pyrolysis oil had no obvious change. |
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