脱聚合石灰岩的宏分子的构建
Muxin Liu1,2, Zhiping Lei2, Xianzhong Cao2
1School of Materials and Chemical Engineering, Bengbu University, Bengbu 233030, Anhui, P. R. China.
ACS omega
|July 3, 2023
概括
这项研究详细介绍了煤脱聚变为无灰煤 (SDP) 和其分数 (HS,TS,THFS) 的过程. 研究描述了这些分数,揭示了从HS到THFS的芳香度和功能组的增加,这对于色煤的化学转化至关重要.
科学领域:
- 化学工程是化学工程的重要组成部分.
- 有机化学 有机化学
- 材料科学 材料科学 材料科学
背景情况:
- 岩的利用是能源的关键,但其高灰含量带来了挑战.
- 将煤转化为化学品为增值提供了一个有前途的途径.
- 无灰煤制备是一种高效的煤升级策略.
研究的目的:
- 为了去聚合煤和制备没有灰的煤炭 (SDP).
- 将SDP分离为可溶于六 (HS),可溶于多 (TS) 和可溶于四基 (THFS) 的部分.
- 用于化学转化,描述SDP及其子分量的结构性质.
主要方法:
- 煤的脱聚合.
- 没有灰的煤炭分成HS,TS和THFS.
- 使用元素分析,GPC,FTIR,SFS,1H-NMR和13C-NMR进行表征.
主要成果:
- SDP是一种含有基和含氧的功能组的芳香衍生物混合物.
- 分子重量,芳香度和氧功能群的增加是HS < TS < THFS的顺序.
- THFS 大分子具有显著的环系统 (9.2 芳香,6.6 纳) 和基/碳酸基,以链断裂为主要的脱聚合反应.
结论:
- 结构特征提供了对煤的化学构成的洞察力,用于有针对性的转化.
- 分割策略有效地根据极性和分子大小将煤成分进行分离.
- 这项研究支持高效利用煤生产有价值的化学品.
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