Synthesis of alkylbenzenesulfonate and its behavior as flow improver in crude oil

Chen, Gang; Zhou, Zhichao; Shi, Xiaodan; Zhang, Xiaolong; Dong, Sanbao; Zhang, Jie

doi:10.1016/j.fuel.2020.119644

Cited by 53 publications

(34 citation statements)

References 23 publications

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“…Furthermore, flow improvers can reduce the viscosity of crude oil by affecting the interaction between colloidal asphaltene molecules. The benzene ring structure contained in the flow improver weakens the supramolecular aggregates formed between gummy asphaltene molecules due to π-π stacking [ 19 , 20 ]. Modified polystyrene contains polar groups that form stronger hydrogen bonds with gum and asphaltene molecules, thus breaking up the aggregates formed by overlapping planes and thus reducing viscosity (as shown in Figure 8 b).…”

Section: Resultsmentioning

confidence: 99%

Acetylation Modification of Waste Polystyrene and Its Use as a Crude Oil Flow Improver

et al. 2021

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Polystyrene is used in a wide range of applications in our lives, from machine housings to plastic cups and miniature electronic devices. When polystyrene is used, a large amount of waste is produced, which can cause pollution to the environment and even harm biological and human health. Due to its low bulk density (especially the foamed type) and low residual value, polystyrene cannot be easily recycled. Often waste polystyrene is difficult to recycle. In this paper, waste polystyrene has been modified by using acetic anhydride which caused a crude oil flow improver. The results showed that modified polystyrene improves the flow properties of the crude oil, reducing the viscosity and the pour point of the crude oil by up to 84.6% and 8.8 °C, respectively. Based on the study of the paraffin crystal morphology, the mechanism of improving the flow capacity of crude oil by modified polystyrene was proposed and analyzed.

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Section: Resultsmentioning

confidence: 99%

Acetylation Modification of Waste Polystyrene and Its Use as a Crude Oil Flow Improver

et al. 2021

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“…)that can form hydrogen bonds 5 . However, when B@Fe(III)L is added into the reactant, the hydrogen bonds between the resin and the asphaltene decrease 33 . The metal ion acts on the S atom, causing the CS bond to break and form free radicals.…”

Section: Resultsmentioning

confidence: 99%

Enhanced aquathermolysis of heavy oil catalysed by bentonite supportedFe(III)complex in the present of ethanol

Zhang

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND Previous research on the aquathermolysis of heavy oil has ignored the relationship between exogenous catalysts and in‐situ inorganic minerals when the reaction temperature is high. RESULTS A series of bentonite‐supported transition metal complexes was synthesized and used in the aquathermolysis of heavy oil; among them, B@Fe(III)L was the most effective one. Under optimal conditions, 0.5% catalyst and 10% ethanol reacted at 250 °С for 4 h can reduce the viscosity of heavy oil by 84.5%. elemental analysis (EL), thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), group composition, and analysis show that the catalyst enhances the destruction process of resin and asphaltene, promotes the more complete cracking reaction of most macromolecular components, and increases the proportion of light fraction of heavy oil. Gas chromatography–mass spectrometry (GC–MS) analysis also indicated that B@Fe(III)L can help to decrease the polar substances in heavy oil and reduce the aromaticity of polar substances. CONCLUSION The B@Fe(III)L prepared can enhance the destruction process of resin and asphaltene, promote the more complete cracking reaction of most macromolecular components, and increase the proportion of light fraction of heavy oil, thereby reducing the viscosity of heavy oil. Therefore, B@Fe(III)L can achieve efficient in‐situ viscosity reduction, and this work promotes related research and applications in this field. © 2021 Society of Chemical Industry (SCI).

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“…According to the standard of SY/T 5119-2008, the column chromatography method was used to separate crude oil samples to obtain the saturates. The morphologies of wax crystal in saturated hydrocarbons with and without PPs were observed using an OPTPro-3000 polarizing microscope ( Chen et al, 2021 ; Gu et al, 2018 ).…”

Section: Methodsmentioning

confidence: 99%

Resource utilization of medical waste under COVID-19: Waste mask used as crude oil fluidity improver

Wang

Xue

et al. 2022

Journal of Cleaner Production

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Synthesis of alkylbenzenesulfonate and its behavior as flow improver in crude oil

Cited by 53 publications

References 23 publications

Acetylation Modification of Waste Polystyrene and Its Use as a Crude Oil Flow Improver

Acetylation Modification of Waste Polystyrene and Its Use as a Crude Oil Flow Improver

Enhanced aquathermolysis of heavy oil catalysed by bentonite supportedFe(III)complex in the present of ethanol

Resource utilization of medical waste under COVID-19: Waste mask used as crude oil fluidity improver

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