| 薛麟嘉,李爱民,张宇琳.废轮胎热解油轻质馏分成分分布与柠檬烯提纯[J].,2023,63(3):274-281 |
| 废轮胎热解油轻质馏分成分分布与柠檬烯提纯 |
| Component distribution of light fraction of waste tire pyrolysis oil and purification of limonene |
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| DOI：10.7511/dllgxb202303007 |
| 中文关键词: 废轮胎 热解 蒸馏 萃取 柠檬烯 环丁砜 |
| 英文关键词: waste tire pyrolysis distillation extraction limonene sulfolane |
| 基金项目:中央高校基本科研业务费专项资金资助项目(DUT20YG109)；辽宁省兴辽英才计划资助项目(XLYC2008012). |
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| 中文摘要: |
| 通过减压精馏的方式富集了废轮胎热解油的轻质馏分，并通过常压精馏的方式将轻质馏分分为6段，系统地研究了甲苯、乙苯、二甲苯、对伞花烃和柠檬烯等高价值物质的分布情况；随后使用乙二醇-环丁砜作为二元萃取剂针对柠檬烯富集馏分进行提纯研究．结果表明：甲苯主要分布在100~120 ℃馏段，乙苯和二甲苯主要分布在120~140 ℃馏段，柠檬烯和对伞花烃主要分布在160~180 ℃馏段．柠檬烯提纯方面，在20 ℃，乙二醇与环丁砜的质量比为3∶1，剂与油的质量比为5∶1的条件下对柠檬烯富集馏分进行10级萃取实验，可完全去除非烃类杂质，芳香烃杂质的质量分数下降至24.99%，柠檬烯的质量分数从33.81%提升至48.03%，柠檬烯萃取提纯的效果优于精馏提纯的效果． |
| 英文摘要: |
| The light fraction of waste tire pyrolysis oil is enriched by vacuum rectification, and divided into 6 fractions by atmospheric rectification. The distributions of high-value substances such as toluene, ethylbenzene, xylene, p-cymene and limonene are systematically studied, then the enriched fraction of limonene is further purified by using ethylene glycol-sulfolane bi-extractant. The results show that toluene mainly exists in the 100-120 ℃ fraction, ethylbenzene and xylene mainly exist in the 120-140 ℃ fraction, limonene and p-cymene mainly exist in the 160-180 ℃ fraction. Under the condition of 20 ℃, the mass ratio of ethylene glycol and sulfolane is 3∶1 and the mass ratio of extractant and oil is 5∶1, the limonene-rich fraction is subjected to a 10-stage extraction experiment. After the experiment, non-hydrocarbon impurities are completely removed, the mass fraction of aromatic impurities decreases to 24.99%, and the mass fraction of limonene increases from 33.81% to 48.03%. The performance of extraction purification for limonene is better than that of the purification by rectification. |
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