废轮胎热解油中的化合物的结构特征和转化
Yueqin Zhang1, Songcan Li1, Qundan Zhang1
1Sinopec Research Institute of Petroleum Processing Co., Ltd., Beijing 100083, China.
Journal of chromatography. A
|May 31, 2023
概括
废轮胎热解油 (WTPO) 含有有问题的化合物. 这项研究确定了WTPO分数中的特定化合物,并提出它们的起源来自胺衍生物,有助于去除策略.
科学领域:
- 石油化学 石油化学
- 材料科学 材料科学 材料科学
- 环境工程环境工程
背景情况:
- 废轮胎热解油 (WTPO) 是废轮胎回收的有价值的副产品.
- 在WTPO中高含量阻碍了其直接应用,需要有效的去除策略.
- 了解存在的特定化合物对于开发有针对性的处理方法至关重要.
研究的目的:
- 在WTPO的整个蒸范围内全面描述化合物.
- 为了阐明废旧轮胎热解过程中化合物的起源和转化途径.
- 为从WTPO中有效清除不必要的化合物提供洞察力.
主要方法:
- 用化学发光检测 (GC-NCD) 进行气相色谱,用于敏感的分析.
- 气色谱-质谱 (GC-MS) 用于化合物识别.
- 里埃变换离子循环子共振质谱 (FT-ICR MS) 用于详细的结构阐明,包括NxOy物种.
- 溶剂溶解和固态提取用于分离特定类型的化合物.
- 量子化学模拟以建模的转化路径.
主要成果:
- 鉴定了酸,氨酸和小分子酸作为汽油部分的主要化合物.
- 在柴油分数中检测到西,林衍生物,p-phthalodinitrile,松衍生物,六甲宁和八甲宁.
- 在重分子中发现了显著的NxOy物种,被确定为二烯胺的胺衍生物.
- 提出轻微分数中的亚烯来源于这些重分数胺的热解.
- 在废旧轮胎热解过程中开发了一种建议的转化途径.
结论:
- 在WTPO中对化合物的详细表征为了解它们的行为提供了基础.
- 亚胺衍生物中提议的烯的起源为去除策略提供了一个关键目标.
- 这些发现支持开发用于净化WTPO的先进处理工艺,提高其效用.
- 了解转化途径对于优化废旧轮胎热解和价值化至关重要.
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