Results 31 to 40 of about 23,867 (262)

Assessing the Asphaltene Adsorption on Metal Oxide Nanoparticles [PDF]

open access: yesIranian Journal of Oil & Gas Science and Technology, 2016
The Taguchi design of experiments (DOE) approach is adopted here to evaluate the impact ofeffective factors such as nanoparticles type, nanoparticles to model solution mass ratio, asphaltenestructure, and temperature on asphaltene adsorption equilibrium.
Fatemeh Amin, Ali Reza Solaimany Nazar
doaj   +1 more source

Characterization of Asphaltene Deposition Behavior in Diluted Heavy Oil under High-Pressure Conditions

open access: yesEnergies, 2023
Some oil wells in the Tahe oilfield have been reported to produce extremely heavy oil due to asphaltene deposition. To enhance the flow of crude oil through the wellbore, engineers adopted the use of light oil from nearby wells to dissolve the heavy ...
Zuguo Yang   +6 more
doaj   +1 more source

Asphaltene aggregation studied by molecular dynamics simulations: role of the molecular architecture and solvents on the supramolecular or colloidal behavior

open access: yesPetroleum Science, 2019
Asphaltene aggregation is a subject under vivid discussion: There are several parameters one needs to determine before its behavior can be mastered and better target solutions can be tailored.
H. S. Silva   +5 more
semanticscholar   +1 more source

Prediction of asphaltene precipitation upon injection of various gases at near-wellbore conditions: A simulation study using PC-SAFT EoS

open access: yesOil & Gas Science and Technology, 2019
The depletion of oil reservoirs and increased global oil demand have given impetus to employ various secondary and tertiary oil recovery methods. Gas injection is widely used in both secondary and tertiary modes, though the major problem associated with ...
Mahmoudvand Saba   +3 more
doaj   +1 more source

Isolation of Asphaltene-Degrading Bacteria from Sludge Oil

open access: yesMakara Journal of Science, 2015
Sludge oil contains 30%–50% hydrocarbon fractions that comprise saturated fractions, aromatics, resins, and asphaltene. Asphaltene fraction is the most persistent fraction.
Pingkan Aditiawati   +1 more
doaj   +1 more source

An innovative method on synthesis of carbon‐zeolite porous composite from tailings solvent recovery units and its utilization in the CO2 adsorption process

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Synthesis of carbon‐zeolite porous composite from tailings solvent recovery units. Abstract Millions of metric tonnes of tailings solvent recovery units (TSRU) stream are produced annually by the oil sands mining industries and stored in the tailing ponds.
Umang Patel   +2 more
wiley   +1 more source

Density, viscosity, and stability of products from combinations of visbreaking and deasphalting

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Abstract Transporting bitumen through pipelines in Western Canada is cost intensive because the oil has to be diluted with light solvents to meet pipeline specifications. The diluent requirement can be reduced by visbreaking (VIS) and solvent deasphalting (SDA), each of which decrease the viscosity and density of the oil.
Jose Beleno   +3 more
wiley   +1 more source

Modeling and Scaling of the Viscosity of Suspensions of Asphaltene Nanoaggregates

open access: yesEnergies, 2017
The scaling and modeling of the viscosity of suspensions of asphaltene nanoaggregates is carried out successfully taking into consideration the solvation and clustering of nanoaggragates, and the jamming of the suspension at the glass transition volume ...
Rajinder Pal
doaj   +1 more source

Corn cob pyrolysis: A systematic literature review of methods and applications

open access: yesThe Canadian Journal of Chemical Engineering, EarlyView.
Mapping the research landscape of corn cob pyrolysis. Abstractas The agricultural sector is experiencing a surge in waste generation due to population growth, creating an urgent need to convert byproducts into value‐added products. Maize (Zea mays L.), a leading global crop, produces significant byproducts, such as corn cob, which are often undervalued.
Vilmar Steffen   +5 more
wiley   +1 more source

A review on methods of determining onset of asphaltene precipitation

open access: yesJournal of Petroleum Exploration and Production Technology, 2018
Oil industry suffers from flow assurance problems that occur both in upstream and downstream operations. One of the common flow assurance issues arises from precipitation and deposition of asphaltenes in various locations along the oil production path ...
A. Soleymanzadeh   +3 more
semanticscholar   +1 more source

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