Browse Items (83 total)

  • Tags: Silica

A Janus membrane/mesh is a type of functional membrane/mesh composed of opposing wetting properties formed into a single layer in order to achieve novel properties. Janus membranes/meshes have attracted increasing attention from materials scientists…

Wax deposition in production pipelines and transportation tubing from offshore to onshore is critical in the petroleum industry due to low-temperature conditions. The most significant popular approach to solve this issue is by inserting a wax…

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…

The need for sustainable zero-carbon fuels to substitute the conventional fossil fuels in the transport field becomes unavoidable to overcome the depletion of petroleum reserves and global warming. Metal fuels are promising energy-carrying materials…

With the present energy scenario, the oil companies are persuading to exploit crude oil resources with high viscosity and an extreme chemical composition which makes production and transportation complex. The rheology of crude oil is related to the…

The utilization of Liquefied Natural Gas (LNG) in the heavy-duty transport sector is a convenient and cost-effective step towards a sustainable future. However, there are questions regarding LNG fuel quality and destructive particles for engines.…

This paper aims to provide the elemental composition of particles found in natural gas. Particle sampling is performed on cellulose filters obtained from an industrial gas storage facility, and the qualitative particle composition is determined by…

This paper investigates the effect of the viscosity of crude oil and stress acting on buried oil pipelines inside dune sand. Due to the increase in energy demand, transportation of all hydrocarbons is obligatory. However, transportation of this oil…

The onshore Cretaceous Zululand Basin of South Africa was investigated for CO2 storage potential using NZA, ZA, ZB, and ZC boreholes drilled by Petroleum Oil and Gas Corporation of South Africa in the 1960s for hydrocarbon exploration. Basin fill…

The hierarchically porous hollowcarbon spheres (HPHCSs) are synthesized by activating the hollowcarbon spheres (HCSs) derived from the template-directing method using SiO2 spheres and waste tire pyrolysis oil (WTPO) as templates and carbon precursor,…

Superamphiphobic materials are helping with urgent issues due to increasing industrial oil transportation, as well as common oil pollution, which has triggered large interest owing to their high application value and practicability. However, they are…

The aim of this work is to investigate the possibility of using a new water-containing material for multicycle gas hydrate formation with a high rate and water-to-hydrate conversion ratio in relation to natural gas storage and transportation.…

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…

Water scarcity is a big challenge especially for developing countries and desert areas like Saudi Arabia. Using solar energy for freshwater production is the way forward for future development of the water industry. The present study developed a new…

A better understanding of the nature of crude oil compounds that preferentially interact with certain types of solids is essential to visualize solutions to challenges in oil fields, such as enhancing the oil recovery factor, via wettability…

Rice husk-based SiO2/C composite is a promising anode material for lithium ion battery, but it remains necessary to explore simple methods to improve its lithium storage performance. In this research, SiO2/C was prepared by adjusting ash content of…

Rice hull-derived SiO2/C composites are promising anode materials for Li-ion battery, but it is a challenge to improve their lithium storage performance by a simple method. In this research, SiO2/C composites were prepared by heating rice hull char…

A recently developed extrography separation method fractionates petroleum asphaltenes based on their ionization efficiency, which correlates with polarity, aggregation tendency, and asphaltene structure (single-core or island versus multicore or…

This paper concerns the ongoing studies on a Concentrated Solar Power (CSP) plant in operation in Ottana (Italy), comprising a 629 kW organic Rankine cycle (ORC) unit fed by a linear Fresnel solar field. Hexamethyldisiloxane (MM) and "Therminol SP-I"…

Understanding the structure-property relationships of the binder-aggregate interface at the molecular level provides insights into the nature of their adhesion and could pave the way for better asphalt mixtures. In this study, molecular dynamic…

Porous silica materials offer wide range of possibilities for enhancement of the productivity of oil reservoirs. However the mechanism of adsorption of polar components of crude oil on silica surface is poorly understood that hinders technological…

In H2, CO2 and natural gas geo-storage, rock-fluid interfacial tension (rockfluid) is a key parameter which influences pore-scale fluid distribution and reservoir-scale gas storage capacity and containment security. However, rockfluid data is…

It is generally accepted that asphaltenes are the main stabilizing agents of water-in-crude-oil emulsions. However, the phenomenon of formation and stabilization of the colloid is complex and requires further studies. In this work, interfacially…

Performance of the nanoparticle-modified asphalt binder is greatly influenced by adhesion properties between asphalt binder and nanoparticle. In this work, the adhesion properties of crude oil fractions (e.g., Saturate, Asphaltene, Resin and Aromatic…

Cellulose derivatives are widely applied in the field of oil and gas exploration. However, this kind of natural polymers always shows poor temperature resistance due to their organic nature. To improve the temperature resistance of hydroxyethyl…

The dissolution of fine particles into flowing and stranded fluids is not only one of the most prominent formation damage problems but also, is prejudicial to economic viability of oil-bearing matrices. To this end, the present paper investigates the…

Compared to sole gas flooding, foam flooding provides superior mobility control, enhanced sweep, and greatly improved oil recovery from depleted oil reservoirs. However, since most modern oil reservoirs are located at higher depths and further away…

Abstract: Specific features of the distribution of vanadium and nickel duringfractionation of heavy oil resins were examined using the example of heavysulfurous oils from the Permian and Carboniferous deposits of the Volga-Uralsoil and gas basin…

A thermal processing of waste tires in the presence of a natural zeolite catalyst from the "Tayzhuzgen" field (Eastern Kazakhstan) is detailed. The hydrogen sources utilized were heavy residues from oil refinement. The elemental and phase composition…

To efficiently remove Ni from crude oils and also without corrosion occurring in the process, polymer brush with core-shell structure (PAA@SiO2) was synthesized by radical polymerization, in which micro-sized SiO2 as the core and polyacrylic acid as…

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…

Wax deposition can cause a slowdown in operation by restricting crude oil flow in the pipeline. Chemical inhibitors interact with the wax molecule in crude oil and prevent wax aggregation. The molecular dynamics (MD) simulation was used to analyze…

Sulfur isotope ratios are among the most commonly studied isotope systems in geochemistry. While sulfur isotope ratio analyses of materials such as bulk rock samples, gases, and sulfide grains are routinely carried out, in-situ analyses of silicate…

The injection of solid stabilized water-in-crude oil emulsion to displace heavy crude oil is a new EOR method. Although high emulsion stability, which is essential for achieving the maximum process efficiency, can be obtained using nanoparticles,…

Through silane coupling and free radical polymerization, using SiO2 as core and poly4-vinylpyridine (P4VP) as shell, polymer brush with core-shell structure (P4VP@SiO2) was designed and synthesized. The structure of P4VP@SiO2 was further…

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…

Relatively low cost, environmental friendly, and high-efficiency silicon dioxide/carbon sphere composite demulsifiers (SiO2@CS) were prepared via an in situ hydrothermal-calcination route. They were characterized by Fourier-transform infrared…

The precise chromatographic isolation of saturates is a common problem of the characterization of highly paraffinic petroleum based samples. Incomplete elution of high-molecular-weight saturates (HMWS) or contamination of saturates by aromatics can…

One of the most important characteristics of asphaltene molecules is their interfacial properties. These are amphiphilic molecules with polar and nonpolar portions. Consequently, asphaltenes have an active surface, so they can be adsorbed at the…

Bioremediation is a low-cost approach for crude oil spill remediation, but it is often limited by electron acceptor availability. In addition, the biodegradation products of crude oil contaminants are complex, and transformation pathways are…

A combination of multi-dimensional supercritical fluid chromatography and field ionization time-of-flight mass spectrometry (SFC FI-TOF MS) is developed for the detailed analysis of olefins and other hydrocarbon types in total petroleum liquid…

The aim of the current study was to investigate and study adsorption and nanofiltration systems for separation of total petroleum hydrocarbons (TPH) from wastewater generated by an oil refinery in Bushehr, Iran. In the first step (previous study),…

An environmentally friendly LLP@SiO2 demulsifier was prepared by coating nano-SiO2 on the natural lotus leaf powder (LLP) via a simple hydrothermal method. Fourier-transform infrared spectroscope (FT-IR), field-emission scanning electron microscope…

Removing emulsified water from a water-in-crude oil (W/O) emulsion is critically required prior to downstream processing in the petroleum industry. In this work, environmentally friendly and amphipathic rice husk carbon (RHC) demulsifier was prepared…

This article provides an overview of a variety of applications of 29Si NMR to materials, with an emphasis on solid-state 29Si NMR of siloxane polymers, silicates, functionalized silica, porous materials, zeolites, and glasses. The unique features of…

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…

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 wettability of glass micromodels and sandstone rock processes plays a vital role in CO2 processes. There is a common belief that glass micromodels are a powerful tool to mimic the mechanisms involved in any EOR/IOR process qualitatively. However,…
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