Results 21 to 30 of about 3,078,576 (239)

metoppv/improver: 1.7.1

open access: yes, 2023
<h2>What's Changed</h2> <ul> <li>IM-1787: Improve memory efficiency of threshold plugin by @bayliffe in https://github.com/metoppv/improver/pull/1913</li> <li>SnowSplitter plugin by @mspelman07 in https://github.com ...
Benjamin Owen   +28 more
core   +1 more source

Synthesis and characterization of alkyl-methacrylate-maleic anhydride copolymer for use as a biodiesel flow improver

open access: yesVietnam Journal of Science, Technology and Engineering, 2022
Methacrylic acid was esterified with four alcohols: 1-decanol, 1-dodecanol, 1-tetradecanol, and 1-cetanol. Afterwards, the obtained monomers were copolymerized with maleic anhydride.
Ngoc Lan Pham   +3 more
doaj   +1 more source

Effect of Biochar on Soil CO2 Fluxes from Agricultural Field Experiments in Russian Far East

open access: yesAgronomy, 2021
Agricultural soils are a major source of greenhouse gases. Biochar is a soil improver and, when applied to the soil, sequesters carbon. However, a different combination of soil and climatic conditions and biochar leads to different research results.
Mariia A. Bovsun   +7 more
doaj   +1 more source

The role of Gemini surfactant and SiO2/SnO/Ni2O3 nanoparticles as flow improver of Malaysian crude oil

open access: yesJournal of King Saud University: Engineering Sciences, 2022
The addition of surfactants and nanoparticles in minimizing wax deposition related problems such as flow assurance is considered an attractive alternative among other techniques but limited researches have been carried out in investigating the method ...
S.D. VijayaKumar, J. Zakaria, N. Ridzuan
doaj   +1 more source

Study of linseed oil, its biodiesel and xylene as flow improver for Nigerian waxy crude oils

open access: yesPetroleum Research, 2022
In this study, the physicochemical properties of linseed and linseed biofuel were studied and their effect on the flow properties of Nigerian waxy crude oil at different volume fractions was investigated.
Ogunkunle Temitope Fred   +4 more
doaj   +1 more source

Investigation of wax precipitation in crude oil: Experimental and modeling

open access: yesPetroleum, 2015
In this work, a series of experiments were carried to investigation of rheological behavior of crude oil using waxy crude oil sample in the absence/presence of flow improver such as ethylene-vinyl acetate copolymer.
Taraneh Jafari Behbahani   +3 more
doaj   +1 more source

Evaluation and enhancement of cold flow properties of palm oil and its biodiesel

open access: yesEnergy Reports, 2016
Cold flow properties are the main issue to regular usage of Palm biodiesel as alternative fuel to diesel. The inferior cold flow property of biodiesel causes gum formation and crystallization of fuel particles which can be enhanced by winterization ...
Puneet Verma   +2 more
doaj   +1 more source

Performance of new and aged injectors with and without fuel additives in a light duty diesel engine

open access: yesTransportation Engineering, 2020
Two sets of diesel injectors are tested in combination with common fuel additives in a multi-cylinder light-duty diesel engine. One set consists of new injectors and the other is aged by over 100,000 km use in a vehicle.
Xinda Zhu, Öivind Andersson
doaj   +1 more source

Improvement of fuel properties of biodiesel with bioadditive ethyl levulinate

open access: yesOpen Chemistry, 2018
Biodiesel has poor cold flow properties due to their high saturated fatty acid content. Ethyl levulinate is used as bio-based cold flow improver additive in biodiesel.
Unlu Derya   +3 more
doaj   +1 more source

Adsorption of Polymeric Additives Based on Vinyl Acetate Copolymers as Wax Dispersant and Its Relevance to Polymer Crystallization Mechanisms

open access: yesJournal of Chemistry, 2015
The present work has main target to study the effect of additives molecular weight and composition on the flow characteristics of wax crude oil at low temperature below pour point temperature.
Ayman M. Atta   +4 more
doaj   +1 more source

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