Results 11 to 20 of about 8,740,917 (241)
Effect of a rapeseed oil derived pour point depressant on the flow properties of the waxy oil from Changqing Oilfield [PDF]
E3S Web of Conferences, 2021 In this paper, rapeseed oil was modified with diethylenetriamine to obtain a vegetable oil-derived pour point depressant (PPD), which was used to reduce the pour point and improve the flowability of the crude oil (from Changqing Oilfield), which has a ...
Wang Yongzhen +8 more
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LubricantsNatural polyphenols found in plants are secondary metabolites and act as natural antioxidants. Phenols prevent lipid oxidation by donating their hydrogen to free radicals generated between reactions of oxygen with unsaturated fatty acids.
Joseph Samuel +9 more
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Journal of King Saud University: Engineering Sciences, 2018 Considerable attention is currently devoted to producing a cold-resistance pour point depressant (PPD) via the emulsification process. The aim of this study is to optimize the emulsification process parameter as to yield a stable emulsion.
M.R.H. Rosdi, A. Ariffin, Z.A.M. Ishak
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Flow and heat exchange calculation of waxy oil in the industrial pipeline
Case Studies in Thermal Engineering, 2021 Waxy oil transportation in the industrial pipeline becomes impossible at temperatures below pour point. Pour point depressant application allows transportation by decreasing pour point and increasing waxy oil fluidity. The novelty of the research lies in
U.K. Zhapbasbayev +3 more
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Egyptian Journal of Petroleum, 2021 Thirteen polyalkyl acrylate-based depressor additives with C16-C26 alkyl groups containing 0–30 mol% of various polar groups (amide, amine, ammonium, N-vinylpyrrolidone, oligo(ethylene glycol)) have been synthesized and tested in 18 crude oil samples of ...
Oleg A. Kazantsev +7 more
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The Performance of Polymethyl Methacrylate/Clay Nanocomposite as Novel Pour Point Depressant on Rheological Properties of Model Waxy Crude Oil [PDF]
Journal of Petroleum Science and Technology, 2020 A novel polymeric nanocomposite pour point depressant (PPD), based on polymethyl methacrylate (PMMA) and montmorillonite (MMT) clay, was synthesized and characterized.
Mohammad Ali Kazemi +2 more
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Novel allyl-ester-based polymers as flow improvers for waxy crude oil [PDF]
Chemical Industry and Chemical Engineering Quarterly, 2021 The deposition of paraffin wax from crude oil at low temperatures due to wax deposition, high pour point, high viscosity, and weak flow capability is among the critical and persisting challenges faced by the petroleum industry.
Ashmawy Ashraf M. +3 more
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Investigation of the effect of depressor additives on the rheological properties of oil
Алматы технологиялық университетінің хабаршысы, 2021 The article is devoted to the study of physico-chemical properties of oil fields Uzen, Kenkiyak, Martyshi and study the effect of depressor additives on the rheological properties of oil fields Uzen.
A. Sh. Zainullina, A. Zh. Arystan
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Journal of Applied Sciences and Environmental Management, 2023 Transportation of waxy crude oil faces great challenges in pipelines, however, pour-point depressant could be employed to improve flow properties of waxy crude oil by modifying the morphology and structure of wax crystals.
O. M. Shittu, O. Achugasim
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Preparation and Performance Evaluation of a New Type of Polyethylene-vinyl Acetate/Polystyrene Microsphere Composite Pour Point Depressant for Waxy Crude Oil [PDF]
ACS OmegaFeng Yan +6 more
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