Results 21 to 30 of about 8,740,917 (241)

Flow Assurance Improvement by Injecting Pour Point Depressant Chemical through Permanent Coiled Tubing Gas Lift to Heavy Oil at MM-1 Well at MPA Field [PDF]

open access: yes, 2023
The majority artificial lift used in MPA Field use PCTGL (Permanent coil tubing gas lift). PCTGL is installed on several monobore well or dual monobore well.
suhascaryo, nur   +2 more
core   +1 more source

Synthesis, characterization and evaluation of stearyl acrylate-co-behenyl acrylate copolymer as a pour point depressant of waxy crude oil [PDF]

open access: yes, 2021
Pour point depressant (PPD) has the competitive advantage of lowering the temperature of the wax appearance (WAT) and crude oil viscosity. In this paper, a novel PPD of poly stearyl acrylate-co-behenyl acrylate (SA-co-BA) in various mass ratios (1:1, 2:1,
Vijayakumar, Shamala   +5 more
core   +3 more sources

Synthesis and Characterization of Dicarboxylate Esters as Environmentally Friendly Palm Biodiesel Pour Point Depressants [PDF]

open access: yesIranian Journal of Chemistry & Chemical Engineering, 2023
The alternative renewable energy of Palm BioDiesel (PBD) is gaining eminence to be used in transportation and industrial applications. However, its regular usage in temperate countries has the main issue to be solved due to its poor cold flow properties.
Waled Abdo Ahmed   +2 more
doaj   +1 more source

Synthesis of Alkyl Aliphatic Hydrazine and Application in Crude Oil as Flow Improvers

open access: yesEnergies, 2021
In this paper, alkyl aliphatic hydrazine, which is different from traditional polymer fluidity improver, was synthesized from aliphatic hydrazine and cetane bromide, and evaluated as a pour point and viscosity-reducer depressant for crude oil.
Qiang Deng   +6 more
doaj   +1 more source

Synthesis and Study on Anti-Wear Properties of Pentaerythritol Monooleate [PDF]

open access: yesCailiao Baohu, 2021
For promoting the application of ester diesel anti-wear agent, pentaerythritol monooleate was synthesized from pentaerythritol and oleic acid in the presence of solid acid catalyst.The obtained product’s structure was confirmed to be pentaerythritol ...
HE Chao-liang, ZHANG Xiao-xing
doaj   +1 more source

Polycondensation depressor additives for oil products using higher fat alcohols

open access: yesИзвестия высших учебных заведений: Нефть и газ, 2019
There are polycondensation ester depressant additives, obtained by the condensation of polyhydric alcohols, synthetic fatty acids and dicarboxylic acids.
A. M. Glazunov   +3 more
doaj   +1 more source

Optimization of operation management of prover in crude oil dynamic metering system

open access: yesYou-qi chuyun, 2020
Regular verification is required during the operation of crude oil dynamic metering system. The factors that affect the accuracy of the verification results mainly contain the temperature, pressure and flow of the measured crude oil, for which ...
Shengyang YU, Xingtao LI, Dianguo NIU
doaj   +1 more source

The effect of final cooling temperature on the wax deposition of Daqing oil modified with additives

open access: yesYou-qi chuyun, 2020
In order to analyze the effect of final cooling temperature on the wax deposition laws of the crude oil modified with additives, keep the same temperature difference of oil wall and control different final cooling temperatures, static wax deposition ...
Dong ZHANG   +7 more
doaj   +1 more source

Investigating depressant behaviour in the flotation of selected Merensky ores [PDF]

open access: yes, 2009
Includes abstract.Includes bibliographical references (p. 109-116).This study utilised laboratory batch flotation tests to characterise the flotation performance, with respect to sulfide and gangue minerals, of two Merensky ores with different mineralogy,
Wiese, Jennifer Gael
core   +1 more source

TEPA与降凝剂复配对生物柴油离子含量的影响Effect of the combination of TEPA and pour point depressant on the ion content of biodiesel

open access: yesZhongguo youzhi, 2023
为对生物柴油的规模化应用提供参考,以小桐子生物柴油为研究对象,利用离子色谱系统研究了5种降凝剂(平安者、秒速、易威、凡响、海龙)、抗氧化剂四乙烯五胺(TEPA)及其复配物对生物柴油离子含量的影响,并测定了加入不同添加剂生物柴油的凝点及氧化安定性。结果表明:TEPA与降凝剂复配在一定程度上降低了生物柴油的凝点,延长了生物柴油的氧化诱导期,其中抗氧化效果最好的是TEPA与易威复配;5种降凝剂添加量为0.4%时,油样中不同种类的离子含量变化趋势不同,有机酸离子含量变化较小,无机阴离子和阳离子含量降低,其中NO-
郑玉曾1,2,3,李法社1,2,3,周黎1,2,3,王文超1,2,3,赵中锦1,2,3 ZHENG Yuzeng1,2,3, LI Fashe1,2,3, ZHOU Li1,2,3, WANG Wenchao1,2,3, ZHAO Zhongjin1,2,3
doaj   +1 more source

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