Amine functional cellulose derived from wastepaper toward oily wastewater treatment and its demulsification mechanism

Ye, Fan; Jiang, Xuebin; Liu, Hanjun; Ai, Guosheng; Shen, Liwei; Yang, Ying; Feng, Xuening; Yuan, Huaikui; Zhang, Zejun; Mi, Yuanzhu; Yan, Xuemin

doi:10.1016/j.molliq.2022.119459

Cited by 13 publications

(8 citation statements)

References 39 publications

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“…Crude oil ( V crude oil : V water = 10:490) was added to distilled water and stirred at 11 000 rpm for 30 min to obtain a completely homogeneous solution (FJ-200, Shanghai). The crude oil emulsion prepared in this way can remain stable within a few days at ambient temperature without oil–water separation …”

Section: Methodsmentioning

confidence: 99%

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Cucurbit[7]uril-Modified Nano SiO₂ for Efficient Separation of Crude Oil Emulsions: Properties and Demulsification Mechanism

Xiong,

Zou,

Wang

et al. 2024

Langmuir

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Demulsification of crude oil emulsion is an obvious problem in the whole of petroleum engineering, which needs to be dealt with urgently. In this paper, a supramolecular material Cucurbit[7]uril-SiO 2 (CB-SiO 2 ) synthesized with excellent demulsification efficiency (DE) on O/W emulsion was synthesized by a simple thermal synthesis method. The microscopic morphology and structure were investigated through modern characterization techniques. Furthermore, its stability, dynamic interfacial tension (IFT), and wettability (three-phase contact angle (CA)) were systematically investigated, and the demulsification efficiency of different conditions on crude oil emulsion was also investigated. Reassuringly, these results showed that when the temperature was 70 °C, the demulsification dosage was close to 600 mg/L and remained unchanged for 90 min; the demulsification efficiency is 2.2 times compared with the unmodified material, up to 93.63%. In addition, a plausible demulsification mechanism was proposed, which is that CB-SiO 2 can adsorb and disrupt the oil−water interface, leading to oil− water separation and promoting demulsification. It is a promising demulsification material for the oil industry demulsification.

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Section: Methodsmentioning

confidence: 99%

“…The crude oil emulsion prepared in this way can remain stable within a few days at ambient temperature without oil−water separation. 25 The DE of the CB-SiO 2 material was evaluated by bottle test. First, different materials dispersed in absolute ethanol or different concentrations of demulsifiers were added to the glass bottles.…”

Section: Bottle Testmentioning

confidence: 99%

Cucurbit[7]uril-Modified Nano SiO₂ for Efficient Separation of Crude Oil Emulsions: Properties and Demulsification Mechanism

Xiong,

Zou,

Wang

et al. 2024

Langmuir

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“…A large number of studies have shown that the demulsification principle of heavy oil-water emulsions is mainly the interaction mechanism between demulsifiers and asphaltene interfacial films at the heavy oil-water interface [183][184][185][186][187].…”

Section: Oil-water Separation Mechanismmentioning

confidence: 99%

“…The carboxylic groups and amide groups of HPAM molecules can interact with the interfacial active components of asphaltenes and form a carboxyl-asphaltene-amide complex unit, which make the asphaltene molecules "anchorage" on the HPAM molecular chain. Fan Ye et al [187] revealed the demulsification mechanism of amine-functionalized recycling wastepaper demulsifier (AWP) in heavy oilwater emulsions. After the amphipathic and interfacial active AWP is added to emulsions, it quickly migrates to the oil-water interface and adsorbs asphaltene.…”

Section: Oil-water Separation Mechanismmentioning

confidence: 99%

A Review of Oil–Solid Separation and Oil–Water Separation in Unconventional Heavy Oil Production Process

Xiao

Geng

et al. 2022

IJMS

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Unconventional heavy oil ores (UHO) have been considered an important part of petroleum resources and an alternative source of chemicals and energy supply. Due to the participation of water and extractants, oil–solid separation (OSS) and oil–water separation (OWS) processes are inevitable in the industrial separation processes of UHO. Therefore, this critical review systematically reviews the basic theories of OSS and OWS, including solid wettability, contact angle, oil–solid interactions, structural characteristics of natural surfactants and interface characteristics of interfacially active asphaltene film. With the basic theories in mind, the corresponding OSS and OWS mechanisms are discussed. Finally, the present challenges and future research considerations are touched on to provide insights and theoretical fundamentals for OSS and OWS. Additionally, this critical review might even be useful for the provision of a framework of research prospects to guide future research directions in laboratories and industries that focus on the OSS and OWS processes in this important heavy oil production field.

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“…Researchers have explored different approaches for utilizing waste paper. Ye, F. et al developed a method for oil–water separation using ammoniated waste paper, 28 Kadam, A. et al extracted α-cellulose-fibers from WP to repair CoO NPs, 29 and Mukherjee, S. et al prepared chemically activated WP to remove fluoride. 30 Tang, X. et al utilized a ZnCl 2 activation method to prepare WP biochar and successfully removed methylene blue using this material.…”

Section: Introductionmentioning

confidence: 99%

Phytic acid-modified waste paper-derived cellulose for lanthanum capture: fabrication concept and affinity mechanism

Yuan,

An,

Xiao

et al. 2024

New J. Chem.

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Amine functional cellulose derived from wastepaper toward oily wastewater treatment and its demulsification mechanism

Cited by 13 publications

References 39 publications

Cucurbit[7]uril-Modified Nano SiO₂ for Efficient Separation of Crude Oil Emulsions: Properties and Demulsification Mechanism

Cucurbit[7]uril-Modified Nano SiO₂ for Efficient Separation of Crude Oil Emulsions: Properties and Demulsification Mechanism

A Review of Oil–Solid Separation and Oil–Water Separation in Unconventional Heavy Oil Production Process

Phytic acid-modified waste paper-derived cellulose for lanthanum capture: fabrication concept and affinity mechanism

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Amine functional cellulose derived from wastepaper toward oily wastewater treatment and its demulsification mechanism

Cited by 13 publications

References 39 publications

Cucurbit[7]uril-Modified Nano SiO2 for Efficient Separation of Crude Oil Emulsions: Properties and Demulsification Mechanism

Cucurbit[7]uril-Modified Nano SiO2 for Efficient Separation of Crude Oil Emulsions: Properties and Demulsification Mechanism

A Review of Oil–Solid Separation and Oil–Water Separation in Unconventional Heavy Oil Production Process

Phytic acid-modified waste paper-derived cellulose for lanthanum capture: fabrication concept and affinity mechanism

Contact Info

Product

Resources

About

Cucurbit[7]uril-Modified Nano SiO₂ for Efficient Separation of Crude Oil Emulsions: Properties and Demulsification Mechanism

Cucurbit[7]uril-Modified Nano SiO₂ for Efficient Separation of Crude Oil Emulsions: Properties and Demulsification Mechanism