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过程条件优化和结构特征分析,从经过气候变化的岩中提取酸

Yan Yang¹, Yanhong Li¹, Yuanqin Zhang¹

¹Faculty of Chemical Engineering, Kunming University of Science and Technology, Kunming 650500, People's Republic of China.

|September 23, 2024

概括

使用响应表面方法 (RSM) 优化从煤炭中化酸 (HA) 的提取,提高了产量. 鉴定结果显示,利希酸 (LSHA) 和武海酸 (WHHA) 的芳香度和生物活性有所不同.

科学领域:

地质化学地质化学
有机化学有机化学
材料科学材料科学材料科学

背景情况:

酸 (HA) 是土壤和煤炭中重要的有机成分.
从煤中有效地提取酸对于其应用至关重要.
了解来自不同来源的酸的特性是必不可少的.

研究的目的:

优化利用响应表面方法 (RSM) 从经过气候变化的煤中提取酸 (HA) 的工艺条件.
用各种分析技术来描述提取的酸 (LSHA 和 WHHA).
为了比较利希和武海来源的酸的特性和生物活性.

主要方法:

使用响应表面方法 (RSM) 来优化提取参数 (时间,NaOH度,液体-固体比率).
分析技术包括紫外线光谱,FTIR,XRD,TG-DTG,CP/MAS 13C NMR,XPS和分子光.
对化学性质,芳香度,分子量,功能组和生物活性进行比较分析.

主要成果:

确定了利希酸 (LSHA) 和武海酸 (WHHA) 的最佳提取条件,结果接近模型预测.
提取时间显著影响了LSHA产量,而液体固体比率显著影响了WHHA产量.
WHHA 呈现出更高的芳香度,而 LSHA 呈现出更高的水友性-疏水性指数,与更高的生物活性相关.

结论:

这项研究成功地优化了从经过气候变化的煤中化酸的提取,为LSHA和WHHA提供了特定的条件.
这两种酸都有着共同的陆地起源,并表现出不同的化学特性和生物活动.
这些发现为煤炭来源的酸的未来应用提供了宝贵的见解.

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