Browse Items (191 total)

  • Tags: Gas chromatography

Enrichment of Pesticide Organic pollutants in Surface Water by solid Phase extraction, Analysis and characterization by Gas Chromatography-Mass Spectrometry and Total screening Software, semi-quantitative, At the same time, the semi-quantitative…

Enrichment of Pesticide Organic pollutants in Surface Water by solid Phase extraction, Analysis and characterization by Gas Chromatography-Mass Spectrometry and Total screening Software, semi-quantitative, At the same time, the semi-quantitative…

Locating underground pipeline leaks can be challenging due to their hidden nature and variable terrain conditions. To sample soil gas, solid-phase microextraction (SPME) was employed, and a portable gas chromatography/mass spectrometry (GC/MS) was…

Locating underground pipeline leaks can be challenging due to their hidden nature and variable terrain conditions. To sample soil gas, solid-phase microextraction (SPME) was employed, and a portable gas chromatography/mass spectrometry (GC/MS) was…

Enrichment of Pesticide Organic pollutants in Surface Water by solid Phase extraction, Analysis and characterization by Gas Chromatography-Mass Spectrometry and Total screening Software, semi-quantitative, At the same time, the semi-quantitative…

Locating underground pipeline leaks can be challenging due to their hidden nature and variable terrain conditions. To sample soil gas, solid-phase microextraction (SPME) was employed, and a portable gas chromatography/mass spectrometry (GC/MS) was…

Enrichment of Pesticide Organic pollutants in Surface Water by solid Phase extraction, Analysis and characterization by Gas Chromatography-Mass Spectrometry and Total screening Software, semi-quantitative, At the same time, the semi-quantitative…

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…

Petroleum hydrocarbons are a toxic pollutant group, primarily including volatile organic compounds (VOC), semi-volatile organic compounds (SVOC) and non-volatile organic compounds (NVOC). These pollutants can be accumulated on urban roads during dry…

Volatile organic compounds (VOCs) are abundant in nature and can occur in various forms in a wide variety of sources. Petroleum is one of the major sources of VOCs. Petroleum being the most widely used energy resources of the world, often released to…

In this paper, the research progress on the extraction and analysis methods of petroleum hydrocarbon in water and sediment were reviewed. The principle, application scope, advantages, disadvantages and applications of various extraction methods and…

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. This document is applicable to materials having a vapour pressure…

The petroleum pollutants are one of the basic soil contaminants. This is due to the widespread use of petroleum products. Crude oil and its derivatives appear in the environment mainly during their storage and transport. In the research, 16 soil…

BACKGROUND: About 25,000 oil tankers are transported annually through the Persian Gulf in Iran. Therefore, oil pollution in this region is very high. Research on the use of marine bacteria to degrade crude oil has yielded good results in recent…

The process of compositional equilibration of reservoir crude oil requires excellent reservoir connectivity. For example, the measured of asphaltene gradients for indications of connectivity is now commonplace. In addition, equilibrated fluids imply…

The low accessibility of natural gas fields and transporting pipelines requires portable online analyzers of the composition of natural gas, ensuring nearly chromatographic precision and capable of in situ analysis of a wide range of gases, including…

Because the influence of shear on the rheology of waxy crude oil must be considered according to the composition and structure of the waxy crude oil transported via pipeline when a new pipeline is constructed, the risks associated with changes in the…

In this study, experimental and mathematical studies were carried out to investigate heavy oil production performance using the carbon dioxide (CO2) huff-n-puff process, as well as the potential of CO2 storage in abundant reservoirs. Five experiments…

The article discusses the results of biomonitoring research at the Underground Gas Storage (UGS). Hydrogen sulphide, as one of the products of microbiological reaction and transformation, as well as a product of chemical reactions in rocks, is a…

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…

A method for identifying straits of rocket kerosene (RG-1 and T-1 brands) and various types of hydrocarbon fuels (aviation fuel TC-1 and diesel fuel) in soil has been developed. The proposed version of identification is based on the preliminary…

In this study, 20 diesel fractions were obtained by co-hydroprocessing blends of low-grade canola oil and Canadian oil sand bitumen-derived heavy vacuum gas oil (HVGO) at different canola oil/HVGO blending ratios, reaction temperatures and pressures,…

Sulfide (sulfur ether or thioether) is a kind of chemically active compound in petroleum, which has special significance in both geochemistry and oil processing. However, the molecular characterization of sulfides is a challenge because the…

Understanding the molecular compositions of petroleum light fractions plays an important role in realizing molecule management of petroleum refining processes. The Research Institute of Petroleum Processing (RIPP) has established various methods to…

In this paper, advanced oxidation process (AOP) combining ultrasound (US) and Fenton's process was proposed for the treatment of total petroleum hydrocarbons present in oil spill sludge. The effect of several parameters like pH, ultrasonic power,…

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…

Investigation on the use of diamondoids to assess the extent of thermal maturity, depositional environment, and origin of Niger Delta source rocks was carried out. This was done to evaluate the significant of diamondoids in petroleum exploration in…

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…

Thermal desorption (TD) behaviors of high-concentration petroleum-contaminated soil (PCS) are affected by soil properties, especially inorganic minerals, in the soil composition. In this study, the TD behaviors of petroleum-contaminated quartz…

The heavy fractions from crude oil samples from different locations of a petroleum production line was investigated by gravimetric precipitation technique through the varying of n-alkane precipitant(s) type, volume, and volume ratios. The type of…

The primary migration of petroleum has been recently described in detail for a thermally mature core of the Barnett Shale with almost nonvariant organofacies and maturity. Here, we use samples from the same well to provide new insights into the…

Polluted soils in temperate regions are frequently exposed to seasonal freezing and thawing events during which the soil biological properties are expected to change in response to the associated temperature variations. In this study, we investigated…

The study employed thirteen (13) crude oil samples from thirteen (13) producing wells, with the aim of examining the source of organic matter and the paleoenvironment of deposition. The crude oils were deasphaltened and the maltene fraction…

To realize the fast and accurate determination of coal-based crude oils, gas chromatography combined with mass spectrometry and flame ionization detection is employed to assist in qualitative and quantitative analysis. In addition, material balance…

BACKGROUND: The high frequency and wide distribution of oil spills pose serious threats to the marine environmental ecosystem and human health. Microbial degradation is considered to be the most applicable means to process oil spills. Carbon isotope…

Stable carbon and hydrogen isotope ratios of individual n-alkanes and acyclic isoprenoids are important tools in petroleum geochemistry. However, the analysis requires baseline separation and peak profiles using gas chromatographyisotope ratio mass…

Since a large amount of sediment organic matter and hydrophobic organic compounds presented in oily sludge sediments in petroleum storage tanks, separation or degradation of these compounds are environmentally important. Therefore, the effect of four…

The thermal decomposition method has been able to convert of real municipal solid waste (MSW) into Bio-Crude Oil (BCO) which is mainly contained hydrocarbon fuel such as light oil (gasoline) and heavy oil (diesel). By this method, sustainable MSW…

Inhalation of PM2.5, particles with an aerodynamic diameter 2.5 particles were size-fractioned into 13 size bins covering 2.5 concentration (20.83 5.21 g/m3) was released from a slick of DOR 1:25, 8.83 greater than the case with pure crude oil. The…

Fractions of coal tar and coal direct liquefaction oil were selected as the research objectives, and they were analyzed by GC-MS/FID (Gas Chromatography-Mass Spectrometer/Flame Ionization Detector), where MS was used for qualitative analysis and FID…

N-doped TiO2/ reduced graphene oxide (N/TiO2/rGO) composite was prepared and used together with the commercial TiO2 for comparative research on photocatalytic degradation of crude oil in seawater. Five test conditions were designed including a…

Photooxidation was an important weathering process for spilled oil at the water surface following the Deepwater Horizon oil spill, leading to the rapid formation of polar or oxygenated hydrocarbons, or photo-generated asphaltenes. While the great…

The ability of geochemistry techniques in reservoir-continuity studies has already been proved. Most of the traditional methods mainly involve analyzing nonpolar components of crude oil and overlooking polar components. Despite valuable information…

Crude Palm Oil hydrocrcaking has been carried out over Ni/Mo ZrO2 pillared bentonite catalyst in a fixed bed reactor. Crude Palm Oil hydrocracking over Ni/Mo ZrO2 pillared bentonite catalyst formed 3 products i.e. gas, oil and coke. The oil product…

1 Scope This document describes 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 crude oils. The boiling range…

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. This document is applicable to stabilized crude oils and for the…

Abstract: The paper describes an investigation of structural and geochemical properties of genetically similar crude oils from the Turija-sever field located in the South-Eastern Pannonian Basin, Serbia. Samples from 56 wells were examined by…
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