Results 21 to 30 of about 22,271 (251)

A Study on the Adsorption and Catalytic Oxidation of Asphaltene onto Nanoparticles [PDF]

Journal of Petroleum Science and Technology, 2017
The use of nanoparticles, including metal oxide surfaces, as asphaltene adsorbents is a potential method of removing and/or upgrading asphaltenes. The adsorption of two asphaltene types, extracted from two types of Iranian crude oil, onto nanoparticles ...
Alireza Solaimany nazar, Fatemeh Amin
doaj   +1 more source

Removal of petroleum asphaltenes by improved activity of NiO nanoparticles supported on green AlPO-5 zeolite: Process optimization and adsorption isotherm

Petroleum, 2020
Asphaltenes removal enhances the quality of the oil and facilitates the processing. In the present work, a NiO/AlPO-5 nanocomposite using green TMG was synthesized as a particular adsorbent for asphaltenes removal. NiO/AlPO-5 was characterized using FTIR,
Majid Mohammadi, Mehdi Sedighi, Meysam Hemati   +2 more
doaj   +1 more source

Investigation of the fluid behavior of asphaltenes and toluene insolubles by high-temperature proton nuclear magnetic resonance and rheometry and their application to visbreaking [PDF]

, 2016
The fluid behavior of asphaltenes at elevated temperatures impacts coke formation in a number of hydrocarbon conversion processes, including visbreaking and delayed coking. In this study, the asphaltenes from a number of sources, namely, a vacuum residue,
Barker, James, Castro-Díaz, M., Cheeseman, Barry, Snape, C.E., Uguna, Clement N.   +4 more
core   +3 more sources

Experimental validation of multiphase flow models and testing of multiphase flow meters: A critical review of flow loops worldwide [PDF]

, 2016
Around the world, research into multiphase flow is performed by scientists with hugely diverse backgrounds: physicists, mathematicians and engineers from mechanical, nuclear, chemical, civil, petroleum, environmental and aerospace disciplines ...
Bello, O. O., Falcone, Gioia, Teodoriu, C.   +2 more
core   +4 more sources

Evaluation of asphaltenes a potential alternative for cement in stabilized base courses using asphalt emulsion

Cleaner Materials, 2023
Stabilization of pavement base material using asphalt emulsion has been widely used to improve pavement performance. This technology produces a high-quality base course material with decreased energy consumption, carbon footprint, and raw material usage.
Farshad Kamran, Leila Hashemian
doaj   +1 more source

Asphaltene detection using Surface Enhanced Raman Scattering (SERS) [PDF]

, 2015
Peer ...
Alabi, O. O., Bowden, Stephen Alan, Brolly, C., Edilbi, A. N. F., Muirhead, D., Parnell, J., Stacey, R.   +6 more
core   +1 more source

Adsorption Isotherms of Phenol and 4-Chlorophenol on Petroleum Asphaltenes Adsorption du phénol et du 4-chlorophénol sur les asphaltènes pétroliers

Oil & Gas Science and Technology, 2006
The adsorption isotherms for phenol and 4-chlorophenol from water onto asphaltenes flocculated in bulk and asphaltenes deposited on silica were established by frontal analysis chromatography at 293, 298, 303, and 308 K.
Jaoui M., Achard C., Hasnaoui N., Rogalski M.   +3 more
doaj   +1 more source

Modification Of Rheological Properties Of Asphalt Effect Of Addition Of Asphaltenes And Oxidized Asphaltenes On The Compatibility Of Asphalt- Sulfur Blends

مجلة بغداد للعلوم, 2014
This study is a complementary one to an extended series of research work that aims to produce a thermodynamiclly stable asphalt –sulfur blend. Asphalt was physically modified wiht different percentages of asphaltenes , oxidized asphaltenes and then ...
Baghdad Science Journal
doaj   +1 more source

EVALUATION OF THE CHEMICAL COMPOSITION AND STRUCTURE OF ASPHALTENES FROM THREE OFFSHORE BRAZILIAN BIODEGRADED HEAVY OILS

Química Nova, 2021
Asphaltenes fractions were extracted and purified from three heavy Brazilian oils. Their mass compositions of C, H, N, Ni and V were obtained from elemental analysis and S and O atomic percentages from EDS.
Hemmely Guilhermond de Souza Severino, Christiane Béatrice Duyck Pinto, André Luiz Durante Spigolon, Carlos Siqueira Bandeira de Mello, Tais Freitas da Silva, Kátia Zaccur Leal   +5 more
doaj   +1 more source

Understanding mechanisms of asphaltene adsorption from organic solvent on mica [PDF]

, 2014
The adsorption process of asphaltene onto molecularly smooth mica surfaces from toluene solutions of various concentrations (0.01-1 wt %) was studied using a surface forces apparatus (SFA).
Abudu A., Acevedo S., Acevedo S., Acevedo S., Adams J. J., Akbulut M., Alboudwarej H., Alvarez G., Alvarez G., Anand Natarajan, Andreatta G., Andrews A. B., Andrews A. B., Buckley J. S., Buckley J. S., Cussler E. L., David Harbottle, Drummond C., Dudasova D., Ekholm P., Faghihnejad A., Friberg S. E., Gonzalez G., Gonzalez G., Goual L., Hannisdal A., Hongbo Zeng, Horvath-Szabo G., Israelachvili J., Israelachvili J. N., Israelachvili J. N., Israelacvili J. N., Jacob Masliyah, Jiang T. M., Jiang T. M., Jouault N., Kawashima H., Kiran S. K., Kupai M. M., Labrador H., Marczewski A. W., Mikami Y., Mitchell D. L., Natalie Kuznicki, Natarajan A., Ostlund J. A., Rane J. P., Rane J. P., Sedghi M., Sjoblom J., Spiecker P. M., Taylor S. D., Vuillaume K., Wang J., Ward A. F. H., Wu X., Xie K., Yarranton H. W., Yen T. F., Zeng H., Zeng H., Zeng H., Zeng H., Zhang L. Y., Zhang L. Y., Zhenghe Xu   +65 more
core   +1 more source