Bioinspired Composite Coating with Extreme Underwater Superoleophobicity and Good Stability for Wax Prevention in the Petroleum Industry

Liang, Weitao; Zhou, Liqun; Li, Weiping; Yang, Xin; Xu, Chang; Liu, Huicong

doi:10.1021/acs.langmuir.5b03234

Cited by 25 publications

(17 citation statements)

References 42 publications

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“…Because a single anti-wax coating could not provide good corrosion resistance, Liang et al prepared a composite coating on the surface of carbon steel, which had three layers of structure (Liang et al 2015). As shown in Fig.…”

Section: Bioinspired Superhydrophilic Coatingsmentioning

confidence: 99%

Multifunctional anti-wax coatings for paraffin control in oil pipelines

Bai

2019

Pet. Sci.

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Paraffin deposition is a severe global problem during crude oil production and transportation. To inhibit the formation of paraffin deposits, the commonly used methods are mechanical cleaning, coating the pipe to provide a smooth surface and reduce paraffin adhesion, electric heating, ultrasonic and microbial treatments, the use of paraffin inhibitors, etc. Pipeline coatings not only have the advantages of simple preparation and broad applications, but also maintain a long-term efficient and stable effect. In recent years, important progress has been made in research on pipe coatings for mitigating and preventing paraffin deposition. Several novel superhydrophilic organogel coatings with low surface energy were successfully prepared by bionic design. This paper reviews different types of coatings for inhibiting wax deposition in the petroleum industry. The research prospects and directions of this rapidly developing field are also briefly discussed.

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Section: Bioinspired Superhydrophilic Coatingsmentioning

confidence: 99%

Multifunctional anti-wax coatings for paraffin control in oil pipelines

Bai

2019

Pet. Sci.

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“…Some approaches have been taken to improve the structural stability of superhydrophilic antiwax coatings. , Liang et al designed a superhydrophilic antiwax coating using SiO 2 as the outset layer to strengthen the mechanical properties, which could maintain hydrophilicity under a load of 50 g for 20 abrasion cycles . Li et al constructed an organic/inorganic composite coating with certain mechanical strength using dopamine, zeolite 4A powder, and poly(vinyl alcohol), which has potential application in wax inhibition and could maintain underwater superoleophobicity during 50 abrasion cycles under a load of 200 g .…”

Section: Introductionmentioning

confidence: 99%

Bioinspired Hybrid Nanostructures for Wax Inhibition Coatings with Superhydrophilicity

Geng

Peng

Yuan

et al. 2021

ACS Appl. Nano Mater.

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Wax deposition is a severe flow assurance problem in the petroleum industry. Superhydrophilic coatings have huge potential in wax inhibition based on the water film theory, but their practical applications are severely limited by their fragile structure and unstable water film. Herein, inspired by the remarkable water management abilities of desert lizards, we fabricated a novel TiO2/diatomite/aluminum dihydrogen phosphate (TiO2/DIA/ADP) superhydrophilic coating with hybrid nanostructures that combined hierarchical protrusion and micro-/nanochannel systems. This bioinspired nanostructure induces a potent capillary effect on water, which, along with hydrogen bonds in hydrophilic composition and coordination bonds contributed by the Ti ion in the tetrahedral environment, established a robust water film on the surface of the coating. The water film imparted underwater superoleophobicity and nearly 100% wax inhibition efficiency. In addition, the interfacial strength of the TiO2/DIA/ADP coating is enhanced by the Ti–O–Si covalent bond and the three-dimensional (3D) cross-linked phosphate network formed through ADP. Consequently, the coating retained excellent underwater oil repellency and wax inhibition efficiency even after being treated with 3.5 wt % NaCl solution and strong acidic as well as mechanical wear resistance in air/water. Thus, this research not only contributes to a comprehensive understanding of the antiwax mechanism based on the water film theory but also provides new insights into antiwax coating with an ultrahigh wax inhibition efficiency in the petroleum industry and durable superhydrophilic coating for applications under harsh conditions.

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“…Our group has extensive experience in preparing superwetting materials. [31][32][33][34][35][36] In our previous work, several substrates with a special wetting property have been prepared and excellent performance of these substrates was achieved. In this work, we report a novel method to fabricate a new type of Janus mesh.…”

Section: Introductionmentioning

confidence: 99%