| 摘要: |
| 针对废润滑油处理不当带来的环境问题，提出对废润滑油进行再生，不仅能够解决环境问题，还能在一定程度上缓解能源危机；通过分析废润滑油的来源及组成，比较现有废油再生技术的优缺点，总结出只有采用高效的溶剂萃取、剧烈加氢或者全面使用发烟硫酸处理的方法才有可能彻底除去废油中的非理想组分；然而，仅仅通过提高加氢精制的苛刻度，单一催化剂难以实现目标，组合加氢再生工艺为最佳选择；首先加氢保护剂可以除去废油中的杂质以确保装置的长期运转，其次通过加氢异构催化剂提高再生油品的质量，最后加氢精制催化剂确保最终产品的稳定性；综上，将多种催化剂形成并联或串联加氢再生工艺，能够显著提高废润滑油再生收率以及产品质量，并且改善废油再生工艺装置的稳定性，是未来废油再生利用技术的发展趋势。 |
| 关键词: 废油再生 润滑油 组合加氢工艺 |
| DOI： |
| 分类号: |
| 基金项目: |
|
| Research Progress of Regeneration Technology of Waste Lubricating Oil |
|
LI Zi-xia， ZHANG Xian-ming， CHEN Li-gong， RAN Yin1,2
|
|
1.Engineering Research Center for Waste Oil Recovery Technology and Equipment， Chongqing Technology and Business University， Chongqing 400067, China;2.School of Chemistry and Chemical Engineering，Southwest University， Chongqing 400715,China
|
| Abstract: |
| Based on the environmental problems caused by improper treatment of waste lubricating oil， the regeneration of waste lubricating oil can not only solve the environmental problems， but also alleviate the energy crisis to a certain extent. By analyzing the resource and composition of waste lubricating oil and comparing the advantages and disadvantages of the existing waste oil regeneration technologies， it is found that only by using efficient solvent extraction， severe hydrogenation or comprehensive use of fuming sulfuric acid treatment，can the nonideal components in waste oil be completely removed. However， only by increasing the severity of hydrotreating， is it difficult to achieve this goal with a single catalyst. The combined hydrogenation regeneration process is the best choice. Firstly， the impurities in waste oil can be removed by hydrotreating protection catalyst to ensure the long-term operation of the unit. Secondly， the quality of regenerated oil can be improved by hydroisomerization catalyst. Finally， the stability of final product can be ensured by hydrofining catalyst. In conclusion， the formation of multiple catalysts in parallel or series hydrogenation regeneration process can significantly improve the regeneration yield and product quality of waste lubricating oil， and improve the stability of waste oil regeneration process unit， which is the development trend of waste oil recycling technology in the future. |
| Key words: regeneration of waste oil lubricating oil combined hydrogenation process |
