Potentiality of eggshell waste in synthesis of functional metal-organic frameworks for fuel purification

IF 3.7 3区工程技术 Q2 ENGINEERING, CHEMICAL

Chemical Engineering Research & Design Pub Date : 2024-09-05 DOI:10.1016/j.cherd.2024.09.008

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引用次数: 0

Abstract

Nitrogen containing compounds in the liquid fuel are well-known to cause serious corrosive action on the engines and plugging of filters with the formation of gummy compounds. Hence, the removal of nitrogenated compounds from the liquid fuel is highly demanded. The current study focused on the efficient removal of indole and quinoline (as nitrogenated compounds) by Ca based metal organic framework. Formerly, Ca based metal organic framework was synthesized using eggshell wastes as source of Ca by Solvothermal [Ca-BTC (s)] and Microwave [Ca-BTC (m)] techniques. Flower and shell plates like crystals were observed under microscope for the synthesized Ca-BTC (s) and Ca-BTC (m), respectively. Purification of liquid fuel from indole and quinoline by the obtained Ca-BTC was systematically investigated. The adsorption of nitrogenated compounds followed the second order reaction and Langmuir isotherm. Microwave technique showed to be more preferable rather than solvothermal technique, for preparation of Ca-BTC with significantly higher adsorption capacity, whereas, and the affinity was higher towards quinoline compared to indole. Meanwhile, for Ca-BTC (m), the estimated maximum adsorption capacity of indole and quinoline was 490.7 mg/g and 583.4 mg/g, respectively. After 4 regeneration cycles, the adsorption capacity Ca-BTC (m) was lowered by 29 % for indole and 24 % for quinoline. The obtained results confirmed the successful using of eggshell wastes in preparation of Ca-BTC with remarkable efficiency in the liquid fuel purification with quite good recyclability.

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蛋壳废料在合成用于燃料净化的功能性金属有机框架方面的潜力

众所周知，液体燃料中的含氮化合物会对发动机产生严重的腐蚀作用，并形成胶状化合物堵塞过滤器。因此，从液体燃料中去除含氮化合物的要求很高。目前的研究重点是利用钙基金属有机框架高效去除吲哚和喹啉（含氮化合物）。此前，我们使用蛋壳废料作为钙源，通过溶热[Ca-BTC (s)]和微波[Ca-BTC (m)]技术合成了钙基金属有机框架。在显微镜下可分别观察到合成的 Ca-BTC (s) 和 Ca-BTC (m) 的花状和壳板状晶体。系统研究了用所获得的 Ca-BTC 从吲哚和喹啉中提纯液体燃料的过程。含氮化合物的吸附遵循二阶反应和 Langmuir 等温线。结果表明，微波技术比溶热技术更适合制备 Ca-BTC，其吸附能力明显高于吲哚，而对喹啉的亲和力则高于吲哚。同时，对于 Ca-BTC（m），吲哚和喹啉的估计最大吸附容量分别为 490.7 毫克/克和 583.4 毫克/克。经过 4 个再生周期后，Ca-BTC（m）对吲哚的吸附容量降低了 29%，对喹啉的吸附容量降低了 24%。这些结果证实，利用蛋壳废料制备 Ca-BTC 是成功的，它在液体燃料净化方面具有显著的效率，而且具有很好的可回收性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Chemical Engineering Research & Design 工程技术-工程：化工

CiteScore

6.10

自引率

7.70%

发文量

623

审稿时长

42 days

期刊介绍： ChERD aims to be the principal international journal for publication of high quality, original papers in chemical engineering. Papers showing how research results can be used in chemical engineering design, and accounts of experimental or theoretical research work bringing new perspectives to established principles, highlighting unsolved problems or indicating directions for future research, are particularly welcome. Contributions that deal with new developments in plant or processes and that can be given quantitative expression are encouraged. The journal is especially interested in papers that extend the boundaries of traditional chemical engineering.