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磁性破乳剂FeN@F的制备及其破乳性能

Preparation and demulsification performance of magnetic demulsifier FeN@F.

作者信息

Liu Chao, Jia Xinlei, Wang Yonghui, Liu Yanjuan, Qin Weining, Wei Lixin

机构信息

Heilongjiang Provincial Key Laboratory of Oilfield Applied Chemistry and Technology, Daqing Normal University Daqing 163712 China.

Key Laboratory of Enhanced Oil Recovery, Northeast Petroleum University, Ministry of Education Daqing 163318 China.

出版信息

RSC Adv. 2024 Oct 7;14(43):31730-31739. doi: 10.1039/d4ra05569a. eCollection 2024 Oct 1.

DOI:10.1039/d4ra05569a
PMID:39376519
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC11456998/
Abstract

Given the suboptimal emulsification performance and the potential for secondary pollution posed by existing demulsifiers, a facile and highly efficient fluorinated magnetic demulsifier (FeN@F) was synthesized a one-step approach using fluorinated polyether and iron nitride as raw materials.The morphology and structure of the demulsifier were characterized using Fourier transform infrared spectroscopy (FTIR), scanning electron microscopy (SEM), thermogravimetric analysis (TGA), and X-ray photoelectron spectroscopy (XPS). The results confirm a successful fluoropolyether coating on the surface of iron nitride. The demulsifying and dehydrating properties were assessed through demulsifying and dehydrating experiments, and the influence of demulsifier addition and demulsifying temperature on the demulsification performance was investigated. Additionally, the demulsification mechanism was analyzed by the microscopic demulsification process. The results indicated that under the condition of the optimum demulsification temperature of 45 °C and the optimum demulsifier dosage of 150 mg L, the water removal (%) of the magnetic demulsifier containing fluorine (FeN@F) was the highest, and could reach 89.4%. FeN@F exhibited excellent magnetic response, the demulsifying rate could reach above 70% after recycling and reusing it 6 times. The application of iron nitride in demulsification presents a novel thought for the advancement of magnetic demulsifiers.

摘要

鉴于现有破乳剂的乳化性能欠佳以及存在二次污染的可能性，采用一步法，以含氟聚醚和氮化铁为原料，合成了一种简便高效的氟化磁性破乳剂（FeN@F）。使用傅里叶变换红外光谱（FTIR）、扫描电子显微镜（SEM）、热重分析（TGA）和X射线光电子能谱（XPS）对破乳剂的形态和结构进行了表征。结果证实氮化铁表面成功包覆了含氟聚醚。通过破乳脱水实验评估了破乳脱水性能，并研究了破乳剂添加量和破乳温度对破乳性能的影响。此外，通过微观破乳过程分析了破乳机理。结果表明，在最佳破乳温度为45℃、最佳破乳剂用量为150mg/L的条件下，含氟磁性破乳剂（FeN@F）的脱水率最高，可达89.4%。FeN@F表现出优异的磁响应性，循环使用6次后破乳率可达70%以上。氮化铁在破乳中的应用为磁性破乳剂的发展提供了新思路。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/24a608ad3166/d4ra05569a-f15.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/dad58e997388/d4ra05569a-f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/f34ad84fddd5/d4ra05569a-f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/f325da91e466/d4ra05569a-f13.jpg
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https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/24a608ad3166/d4ra05569a-f15.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/1660835903ab/d4ra05569a-f1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/871021aae24b/d4ra05569a-f2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/840ad6326e45/d4ra05569a-f3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/bdf86d501c17/d4ra05569a-f4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/147cd9c2d1a5/d4ra05569a-f5.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/8711dc12eedd/d4ra05569a-f6.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/f9f3e284c920/d4ra05569a-f7.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/935800347cbf/d4ra05569a-f8.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/af15e3131f38/d4ra05569a-f9.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/b69651e7dfbf/d4ra05569a-f10.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/dad58e997388/d4ra05569a-f11.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/f34ad84fddd5/d4ra05569a-f12.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/f325da91e466/d4ra05569a-f13.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/223244dfe029/d4ra05569a-f14.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/fa05/11456998/24a608ad3166/d4ra05569a-f15.jpg

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Carbohydr Polym. 2024 Mar 1;327:121697. doi: 10.1016/j.carbpol.2023.121697. Epub 2023 Dec 17.
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Synthesis and Application of a Novel Multi-Branched Block Polyether Low-Temperature Demulsifier.
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A Novel Demulsifier with Strong Hydrogen Bonding for Effective Breaking of Water-in-Heavy Oil Emulsions.一种新型的强氢键破乳剂，用于有效破乳稠油中的水包油乳液。
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