Results 71 to 80 of about 7,502 (225)
Improved thermodynamic investigation of asphaltene precipitation
, 2023 Asphaltenes are analogous to the “cholesterol” of crude oils, so they may cause significant flow assurance problems to various oil and gas processes and negatively affect the economy of the oil recovery, transportation, and processing by increasing ...
Alimohammadi, Sepideh
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Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 3, May/June 2026.ABSTRACT In this study, (Ce, La)PO4 catalysts were synthesized via an ultrasound‐assisted method. The effects of ultrasound duration and calcination temperature on the low‐temperature NH3‐SCR performance were systematically investigated. The results indicated that the (Ce, La)PO4 catalyst prepared with an ultrasound treatment time of 20 min and a ...
Na Li +4 more
wiley +1 more source
Asphaltene deposition in oil sector:A comprehensive review
, 2022 Asphaltene science is important in petroleum industry due to its effect on flow assurance and downstream facility equipment. Asphaltene is defined operationally and not as class compounds.
Bani Saad, Alkhatab, Liu, Lande
core
Asia-Pacific Journal of Chemical Engineering, Volume 21, Issue 3, May/June 2026.ABSTRACT Bamboo charcoal–based extruded activated carbons were prepared via molding, pre‐oxidation, carbonization, and steam activation, with coal tar, phenolic resin, and their mixtures employed as binders based on practical availability and technical feasibility. This study focused on the regulatory effects of binders on the mechanical properties and
Huitao Jiang, Songlin Zuo
wiley +1 more source
Simple Functionalization of Asphaltene and Its Application for Efficient Asphaltene Removal
, 2016 Asphaltene, the cheapest fraction of petroleum, was modified into a novel additive in order to facilitate a deasphalting process, such as paraffinic froth treatment.
Wonbum Pyeon (3096438) +3 more
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Youqi dizhi yu caishouluDuring the development of heavy oil reservoirs in the eastern South China Sea， asphaltene precipitation can cause blockages in reservoir throats， wellbores， and pipelines， leading to a decrease in the productivity of oil wells.
TU Yi +5 more
doaj +1 more source
Oil & Gas Science and Technology, 2018 An experimental and modeling approach was developed in this research to investigate the effects of CO2, new synthesized CaO and commercial SiO2 nanoparticle concentrations on the Asphaltene Precipitation Envelope (APE).
Ahmadi Yaser, Aminshahidy Babak
doaj +1 more source
Numerical Validation of Asphaltene Precipitation and Deposition during CO2 miscible flooding
Petroleum Research, 2020 Asphaltene precipitation, flocculation, and deposition can significantly reduce oil production by impacting wellbores, flowlines, and more importantly, formations’ pore space around the well.
Fahad I. Syed +3 more
doaj +1 more source
The Canadian Journal of Chemical Engineering, Volume 104, Issue 4, Page 2020-2032, April 2026.25 g of oil sands extracted by dynamic accelerated solvent extraction, yielding 177 mL of bitumen–toluene extract and clean dried solids in approximately 12 min. Abstract Determining the oil, water, and solids (OWS) contents of oil sand is essential to many aspects of the oil sands industry including mine planning, optimization of extraction processes,
Ceanna Ting‐Yan Cheung +1 more
wiley +1 more source
Asphaltene onset pressure measurement and calculation techniques: A review
, 2023 Asphaltene precipitation can result in several production, operational, and transportation problems during oil recovery. If asphaltene precipitates and deposits, it can reduce reservoir permeability, damage wellbore equipment, and plug the pipelines.
Sherif Fakher +7 more
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