Study on modified graphene oxide-based emulsion cleaner for oily sludge

IF 17.7 1区化学 Q1 CHEMISTRY, MULTIDISCIPLINARY Accounts of Chemical Research Pub Date : 2024-04-24 DOI:10.1515/tsd-2023-2566

Shuang Zheng, Xin Li, Yang Chen, Rongjiao Zhu, Xia Feng

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Abstract

Oily sludge is a complex system that is inevitably generated during the process of oil extracting and processing. It will cause serious environmental pollution and waste of resources if untreated sludge is discharged. In this paper, a composite emulsion cleaner based on modified graphite oxide and surfactants was developed for cleaning oily sludge. First, graphite oxide (GO) was functionally modified with butylamine, and its structures were verified by Fourier transform infrared spectroscopy (FTIR), X-ray electron spectroscopy (XPS), thermogravimetric analysis (TGA), and environmental scanning electron microscopy (SEM). Then, the oil-in-water composite emulsion cleaner was prepared by using butylamine modified graphite oxide and surfactants. The conditions for emulsion preparation and oil sludge cleaning were modelled and optimized by the response surface methodology. The obtained optimal formulations were: surfactant content was 2.17 ‰ with SDS/AEO-3 ratio of 9:1, GO-A4 content was 0.96 ‰, water-oil ratio was 5:5, and the oil removal rate was 97.45 %. The optimal cleaning conditions were: liquid-solid ratio of 3.2:1, cleaning time of 32 min, cleaning temperature of 28.7 °C, and oil removal rate of 99.02 %. The solid sediments were characterized by FTIR and SEM, which proved the feasibility of cleaning oily sludge with the emulsion.

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基于改性氧化石墨烯的含油污泥乳液清洁剂研究

含油污泥是石油开采和加工过程中不可避免产生的一个复杂系统。如果将未经处理的污泥排放，会造成严重的环境污染和资源浪费。本文开发了一种基于改性氧化石墨和表面活性剂的复合乳液清洁剂，用于清洁含油污泥。首先，用丁胺对氧化石墨（GO）进行了功能改性，并通过傅里叶变换红外光谱（FTIR）、X 射线电子能谱（XPS）、热重分析（TGA）和环境扫描电子显微镜（SEM）对其结构进行了验证。然后，使用丁胺改性氧化石墨和表面活性剂制备了水包油复合乳液清洁剂。采用响应面方法对乳液制备和油泥清洁的条件进行建模和优化。得到的最佳配方为：表面活性剂含量为 2.17 ‰，SDS/AEO-3 比例为 9:1，GO-A4 含量为 0.96 ‰，水油比例为 5:5，除油率为 97.45 %。最佳清洗条件为：液固比 3.2:1，清洗时间 32 分钟，清洗温度 28.7 °C，除油率 99.02 %。固体沉积物通过傅立叶变换红外光谱和扫描电镜进行了表征，证明了用乳液清洗含油污泥的可行性。

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

Accounts of Chemical Research 化学-化学综合

CiteScore

31.40

自引率

1.10%

发文量

312

审稿时长

2 months

期刊介绍： Accounts of Chemical Research presents short, concise and critical articles offering easy-to-read overviews of basic research and applications in all areas of chemistry and biochemistry. These short reviews focus on research from the author’s own laboratory and are designed to teach the reader about a research project. In addition, Accounts of Chemical Research publishes commentaries that give an informed opinion on a current research problem. Special Issues online are devoted to a single topic of unusual activity and significance. Accounts of Chemical Research replaces the traditional article abstract with an article "Conspectus." These entries synopsize the research affording the reader a closer look at the content and significance of an article. Through this provision of a more detailed description of the article contents, the Conspectus enhances the article's discoverability by search engines and the exposure for the research.

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