Heavy oils are sometimes diluted with petroleum solvents for pipeline transportation, and it is necessary to ensure that the selected solvent does not precipitate asphaltenes from the oil. The modified regular solution (MRS) model can predict…
Dispersants used in oil spills could result toxic to marine organisms and could influence the toxicity of oil compounds. The aim of this work was to uncover the mechanisms of action of the water accommodated fraction (WAF) of a naphthenic North Sea…
Heavy oil reservoirs contain a large amount of hydrocarbons that are relatively difficult to produce and lift to the surface due to the very low mobility of these heavy oils. Even after producing these heavy oils, transportation problems arise as…
The formation of low-viscosity emulsions is a vital method for viscosity reduction of crude oil. Naphthenic acids, which are present in crude oil, are potential surface-active substances. Tertiary amines with CO2 response can be self-assembled in…
Heavy crude oil shows high viscosity combined with low mobility, which affects the efficient transportation through pipelines. Drag has long been identified as the main reason for the loss of energy in pipeline fluid transmission and other similar…
Unconventional crude oil extraction, transportation, and downstream refining have encountered a huge formation of petroleum emulsion (or rag layer), which causes serious problems such as equipment corrosion, loss of crude oil, and catalyst poisoning.…
Scope: This test method covers the determination of the boiling range distribution of petroleum products. The test method is applicable to petroleum products and fractions having a final boiling point of 538C (1000F) or lower at atmospheric pressure…
Distinct naphthenic acid (NA) species were isolated from oil sands process water (OSPW) into 20 fractions via silver-ion solid phase extraction, prior to treatment using potassium ferrate(VI). Untreated and treated fractions F1F20 were characterized…
Corrosivity of petroleum fractions with the same total acid value (TAN) can be much different due to chemical structure differences of acidic species. To investigate corrosivity difference and interactions between different acidic species, acids with…
Abstract: Influence of the WC/NiCr additive on the cracking of maltenes of naphthenic crude oil from the Usa oil field has been studied. Maltene cracking was carried out at 450 for 2 h in the isothermal mode. Material balance of cracking, the…
1 Scope This document specifies a method for the determination of the boiling range distribution of petroleum products by capillary gas chromatography using flame ionization detection. The standard is applicable to materials having a vapour pressure…
1 Scope This document specifies a method for the determination of the boiling range distribution of petroleum products by capillary gas chromatography using flame ionization detection. The standard is applicable to materials having a vapour pressure…
Scope: This test method covers the determination of the boiling range distribution of petroleum distillate fractions. The test method is applicable to petroleum distillate fractions having an initial boiling point greater than 174C (345F) and a final…
Scope: This test method covers the determination of the boiling range distribution of petroleum distillate fractions. The test method is applicable to petroleum distillate fractions having an initial boiling point greater than 174C (345F) and a final…
Scope: The procedures in this test method cover the determination of organic chloride (above 1 g/g organically-bound chlorine) in crude oils, using either distillation and sodium biphenyl reduction, distillation and microcoulometry, or distillation…
Scope: The procedures in this test method cover the determination of organic chloride (above 1 g/g organically-bound chlorine) in crude oils, using either distillation and sodium biphenyl reduction, distillation and microcoulometry, or distillation…
Abstract: A comparative analysis has been made of the physicochemical properties and structural-group composition of acids isolated from crude oils of the Anastasievsko-Troitskoe (Krasnodar krai, Russia) and Naftalan (Azerbaijan) oil fields. For each…
Naphthenic acids and sulfur compounds present in crude oils may cause corrosion in oil refineries. In some cases, corrosion product scale formed in these oils may provide corrosion protection, but in other cases this may not be true. Current research…
The extraction of naphthenic acid from low-grade crudes offers economic and environmental advantages over chemical conversion or other separation processes. The properties of the solvent play critical roles for the successful implementation of the…
To process high-acid crude oil by catalytic cracking technology, a coupled process (FCD-FCC) involving fluid catalytic deacidification (FCD) of high-acid crude oil over a spent catalyst and fluid catalytic cracking (FCC) of heavy oil over a…
This paper presents a mixing model to predict the viscosity of diluted crude oil based on the mass fractions derived from the SARA fractions of the crude and PIANO fractions of the diluents for heavy and extra heavy crude mixtures diluted with…
Solvent bitumen extraction processes are alternatives to thermal processes with potential for improved economic and environmental performance. However, solvent interaction with bitumen commonly results in in situ asphaltene precipitation and…
Nowadays, most of the worlds energy consumption is from fossil fuels. One of these fossil fuels is natural gas condensate which consists of various hydrocarbon components and could be used as the main fuel resource. However, these condensates contain…
Because of destructive effects of organic chlorides, elimination of these compounds from contaminated crude oil and its distillates is very crucial for oil refiners. Despite the importance of the subject, limited researches in this field are…
Oxygenates should be added to gasoline fractions because they are environmentally friendly and have a high-octane rating. This research investigates new recipes for producing high-octane gasoline based on gas raw materials by using isooctene. Blend…
Dispersants used in oil spills could result toxic to marine organisms and could influence the toxicity of oil compounds. The aim of this work was to uncover the mechanisms of action of the water accommodated fraction (WAF) of a naphthenic North Sea…
Negative-ion electrospray ionization (ESI) enabled the direct mass spectrographic analysis of phenols, naphthenic acids, and neutral nitrogen compounds in petroleum fractions without prefractionation
Unconventional crude oil extraction, transportation, and downstream refining have encountered a huge formation of petroleum emulsion (or rag layer), which causes serious problems such as equipment corrosion, loss of crude oil, and catalyst poisoning.…
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…
Adopting nature-based solutions for the bioremediation of oil sands process water (OSPW) is of significant interest, which requires a thorough understanding of how bacterial communities behave within treatment systems operated under natural…
Inferential analysis using neural network technology is proposed for an existing crude fractionation section of an oil refinery. Plant data for a three month operation period is analyzed in order to construct various neural network models using a…
Heavy oil reservoirs contain a large amount of hydrocarbons that are relatively difficult to produce and lift to the surface due to the very low mobility of these heavy oils. Even after producing these heavy oils, transportation problems arise as…