Browse Items (28 total)

  • Tags: Esters

Currently, the fuel oil for transportation and industry is produced mostly from fossil fuels. Because fossil fuels are a limited resource, biomass could be an alternative resource. Empty fruit bunch (EFB) is biomass waste from fresh fruit bunch…

Wax crystallization and deposition is a major flow assurance problem in production and transportation of waxy crude oil. Conventional flow improvers are mainly high molecular weight synthetic polymers, many of which are eco-toxic. Bio-based flow…

The deposition of paraffin on the pipeline surface during crude oil transportation is a significant issue for oil industries. In this regard, the demand for adequate methods of wax deposition has gained considerable attention. In the current work,…

Asphaltenes and paraffin are considered the molecules present in heavy crude oils that tend to form aggregates that cause high viscosity values. Understanding the molecular interactions occurring in such aggregation phenomena is essential to apply…

The biomaterials have gained the attention for utilization as sustainable alternatives for petroleum-derived products due to the rapid depletion of petroleum resources and environmental issues. Chitosan is an economical, renewable and abundant…

The low-temperature flow properties of waxy crude oils are considered the determining factor in pipeline transportation. Polymeric additives known as pour point depressants (PPDs) have been developed to control the growth habits of wax crystals to…

Wax deposition is a serious issue during the pipeline transportation of crude oil. This research work has investigated the effects of some important parameters on the flow characteristic of crude oil during the pipeline transportation in offshore and…

Crude oil extraction, transportation and even its storage require a lot of struggle due to its high density, high viscosity and high pour point. To overcome these problems, polymers have attracted much attention as efficient chemical additive.…

The present work deals about performance and emission characteristics of a diesel engine fueled with biodiesel produced from underutilized, feedstock Gmelina arborea oil. The experiments were conducted using various blends (B10, B20, B30, and B40) of…

1 Scope This European Standard specifies requirements and test methods for marketed and delivered fatty acid methyl esters (hereafter known as FAME) to be used either as fuel for diesel engines and for heating applications at 100 % concentration, or…

Considering that high viscosity of extra-heavy crudes is related to the formation of a dispersed phase of asphaltenes, a dynamic interaction model is proposed which explains the mechanism to achieve viscosity reduction based on the molecular…

Bio jet fuel becomes one of the feasible solutions for jet fuel inadequate supply in Indonesia. However, study in this field by far has been limited. In this study, bio jet fuel was synthesized from Crude Palm Oil (CPO) by Hydroprocessed Esters and…

The present study reports, high-performance polymer absorbents for crude oil and organic solvents based on 3D cross-linked polystyrene-polymethyl methacrylate/divinyl benzene (PS-PMMA/DVB). The preparation of the 3D cross-linked polymer absorbents…

Aromatic hydrocarbons are one of the main components of petroleum and its fractions. However, the characterization of its molecular composition is still a technical challenge for mass spectrometry because of the lack of ionization methods, especially…

The normal operating transformers encounter various kinds of stresses such as thermal stress, electrical stress, mechanical stress, and ambient effect that can expedite the deterioration process. Partial discharge occurs normally in high voltage…

Asphaltenes and paraffin are considered the molecules present in heavy crude oils that tend to form aggregates that cause high viscosity values. Understanding the molecular interactions occurring in such aggregation phenomena is essential to apply…

Scope: These test methods cover the determination of the amounts of the individual fatty acids and rosin acids in fractionated tall oil products, using capillary gas chromatographic separation of the volatile methyl esters of these acids. Four…

Palm oil is the vegetable oil refined and modified in the largest amount. In this study, we present the effect of wet fractionation and hydrogenation of RBD palm oil on the removal of 3-MCPD and glycidyl esters. Fractionated palmstearins had…

Detergent fractionation (Lanza process) offers a valuable separation process for edible oils that contain varying amounts of saturated and unsaturated fatty acids. The rice bran oil fatty acid distillate (RBOFAD), obtained as a major byproduct of…

Synthesis of Compound Esters based on Acid Chloride of Low-Molecular Petroleum Acids of Baku Marine Oil Fields and Chiral Unsaturated Alcohols. The physicochemical properties of the compound naphthenic acid esters are determined, and the…

The biomaterials have gained the attention for utilization as sustainable alternatives for petroleum-derived products due to the rapid depletion of petroleum resources and environmental issues. Chitosan is an economical, renewable and abundant…

Asphaltenes and paraffin are considered the molecules present in heavy crude oils that tend to form aggregates that cause high viscosity values. Understanding the molecular interactions occurring in such aggregation phenomena is essential to apply…

Aromatic hydrocarbons are one of the main components of petroleum and its fractions. However, the characterization of its molecular composition is still a technical challenge for mass spectrometry because of the lack of ionization methods, especially…

Ruthenium ion-catalyzed oxidation of methanonaphthene oil (Krapivinskoye oilfield) revealed that its high molecular asphaltenes contain aromatic–aliphatic bridges and non- covalently bound (occluded) compounds. Covalently bound fragments are…

Aromatic hydrocarbons are one of the main components of petroleum and its fractions. However, the characterization of its molecular composition is still a technical challenge for mass spectrometry because of the lack of ionization methods, especially…

The biomaterials have gained the attention for utilization as sustainable alternatives for petroleum-derived products due to the rapid depletion of petroleum resources and environmental issues. Chitosan is an economical, renewable and abundant…

The biomaterials have gained the attention for utilization as sustainable alternatives for petroleum-derived products due to the rapid depletion of petroleum resources and environmental issues. Chitosan is an economical, renewable and abundant…

Asphaltene aggregation and flocculation in upstream and downstream industries cause severe problems due to phase separation and asphaltene particle growth. This work aims to esterify tannic acid (TA) at different molar ratios of heptanoyl chloride…
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