Results 1 to 10 of about 22,271 (251)
Asphaltenes from Ethylene Tar as a Potential Raw Material to Obtain High Value-Added Products
Energies, 2023 Ethylene tar is the main byproduct of ethylene synthesis obtained via pyrolysis of hydrocarbon feedstock. With the growing demand for ethylene, the efficient use of ethylene tar is of great importance from both an economic and an ecological point of view.
Yulia Yu. Borisova +5 more
doaj +1 more source
Nanomaterials, 2022 Further development and commercialization of bulk heterojunction (BHJ) solar cells require the search for novel low-cost materials. The present study addresses the relations between the asphaltenes’ chemical structure and the morphology of the poly(3 ...
Natalia Borzdun +3 more
doaj +1 more source
High-Temperature Performance Evaluation of Asphaltenes-Modified Asphalt Binders
Molecules, 2020 Asphalt binder comprises four main fractions—asphaltenes (A), saturates (S), aromatics (A), and resins (R)—referred to as “SARA”. Asphaltenes plays an important role in determining the linear viscoelastic behavior of asphalt binders.
Amirhossein Ghasemirad +2 more
doaj +1 more source
Nanomaterials, 2022 Petroleum asphaltenes are considered the most irritating components of various oil systems, complicating the extraction, transportation, and processing of hydrocarbons. Despite the fact that the paramagnetic properties of asphaltenes and their aggregates
Marat Gafurov +4 more
doaj +1 more source
Mechanical Properties of the Blends of Recycled Polypropylene with Blown and Soft Bitumens [PDF]
علوم و تکنولوژی پلیمر, 2008 In this investigation, the mechanical properties of the blends of blown bitumen110/10, heavy vacuum slops (H.V.S), bitumen 60/70 penetration grade and isotactic polypropylene (iPP) were studied for the first time.
V. Hadadi +3 more
doaj +1 more source
Revista Fuentes El Reventón Energético, 2023 Asphaltenes are characterized as the crude oil fraction with the highest molar mass and polarity, presetting mainly (poly) aromatic groups. The flocculation and deposition of asphaltenes causes large losses to the oil industry.
Daniel Rezende da Silva +5 more
doaj +1 more source
Energies, 2023 Asphaltene precipitation/deposition is considered a problem of formation damage, which can reduce the oil recovery factor. In addition, asphaltenes can be deposited in pipelines and surface installations, causing serious complications in guaranteeing ...
Camilo Andrés Guerrero-Martin +8 more
doaj +1 more source
Nanomaterials, 2020 Asphaltenes deposition is considered a serious production problem. The literature does not include enough comprehensive studies on adsorption phenomenon involved in asphaltenes deposition utilizing inhibitors. In addition, effective protocols on handling
Mohammad Sadegh Mazloom +5 more
doaj +1 more source
Characterization of the Structure of Saudi Crude Asphaltenes by X-ray Diffraction [PDF]
, 1997 Structural characterization studies have been carried out on four commercial Saudi Arabian crude oils. The aromaticity and crystallite parameters of the asphaltenes were studied by X-ray diffraction methods and compared to the average structural ...
Ali, Mohammad F. +2 more
core +4 more sources
Fuel Communications, 2023 Injection of natural/associated gas is widely used as an efficient method of enhanced oil recovery in carbonate oil reservoirs in both miscible and immiscible conditions. Due to reservoir oil compositional changes by injected gas, asphaltenes instability
Saber Mohammadi, Fatemeh Mahmoudi Alemi
doaj +1 more source