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使用可重复使用的基托基吸附剂,对模型燃料进行高效和选择性脱硫

Siamak Zavareh¹, Yusif R A Doori²

¹Department of Chemistry, Faculty of Science, University of Maragheh, P.O. Box 55136-553, Maragheh, East Azerbaijan Province, Islamic Republic of Iran. zavareh@maragheh.ac.ir.

Environmental science and pollution research international

|November 17, 2025

概括

(Ce3+) 修饰的奇托有效地从燃料中去除烯,提供可持续和可重复使用的生物基吸附剂. 这种绿色材料显示出高吸附能力和燃料脱硫的选择性.

科学领域:

材料科学材料科学材料科学
环境化学环境化学
化学工程是化学工程的重要组成部分.

背景情况:

硫化合物蒂奥芬是燃料中的一个主要污染物.
传统的脱硫方法面临效率和环境影响方面的挑战.
开发可持续和有效的吸附剂对于燃料净化至关重要.

研究的目的:

开发和评估 (Ce³⁺) 和铜 (Cu²⁺) 修饰的奇托作为生物基吸附剂,用于提奥芬去除.
为了比较Ce-chitosan和Cu-chitosan的吸附性能,结构性质和再生能力.
评估这些吸附剂在可持续燃料脱硫方面的潜力.

主要方法:

合成Ce3+-和Cu2+-修饰的奇托吸收剂.
使用像X射线衍射这样的技术来描述吸附性结构.
使用模型燃料进行的蒂奥芬吸附实验.
吸附过程的动力学和热力学分析.
通过再生周期评估吸附剂的选择性和可重复使用性.

主要成果:

与Cu-chitosan (9.94 mg S·g-1) 相比,Ce-chitosan表现出较高的 thiophene 吸附能力 (13.82 mg S·g-1).
吸附动力学遵循了两个吸附剂的伪二阶模型.
Ce-chitosan 显示出显著的负变化 (-136.9 kJ·mol-1),表明了外热化学吸收.
在存在竞争异环 (88.9%) 和经过五个再生周期 (77.6%) 的情况下,Ce-chitosan保持了高容量.

结论:

经Ce3+改性酸盐是一种高效,选择性和可重复使用的生物基吸附剂,用于提奥芬去除.
该研究强调了Ce-chitosan作为燃料脱硫的可持续解决方案的潜力.
这项研究有助于在能源领域开发绿色化学方法.

关键词:

吸附方式吸附方式吸附方式空气污染大气污染生物聚合物的生物聚合物.脱硫处理脱硫处理燃油的燃料是燃料.

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