Results 51 to 60 of about 35,311 (304)

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

Elucidation of the Average Molecular Structure of Argentinian Asphaltenes

Energy & Fuels, 2019
Petroleum asphaltenes were separated from three different Argentinian crude oils. The asphaltene fractions were extracted by precipitation employing n-pentane and n-heptane solvents, and the coprec...
Yanina B. Bava, Mariana Gerone ́ s, D. Buceta, Dar í o de la, Iglesia Rodr í guez, M. A. L. ́. pez-Quintela, Mauricio F. Erben   +6 more
semanticscholar   +1 more source

Aggregation and coagulation of asphaltenes in oil film: physical characteristics of surface deposit products

Известия Томского политехнического университета: Инжиниринг георесурсов, 2017
The relevance of the discussed issue is caused by the practical significance of studying aggregation of asphaltenes in oil film and determining the dimensional parameters of micro- and nanostructures of the deposited components.
Yuriy Vladimirovich Korzhov, Sergey Anatolievich Orlov   +1 more
doaj   +2 more sources

Compatibility Assessment of Crude Oil Blends Using Different Methods

Chemical Engineering Transactions, 2017
Today, opportunity crude oils and their blends have attracted the attention of oil companies looking to increase their cross refinery margin. However, when crude oils are blended in the wrong proportions or even the wrong order, they can precipitate ...
M.A.M. Ben Mahmoud, A. Aboujadeed
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

The 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, Mohammad Hashem Sedghkerdar, Nader Mahinpey   +2 more
wiley   +1 more source

Demulsification mechanism of asphaltene-stabilized water-in-oil emulsions by a polymeric ethylene oxide-propylene oxide demulsifier [PDF]

, 2014
The demulsification mechanism of asphaltene-stabilized water-in-toluene emulsions by an ethylene-oxide-propylene oxide (EO-PO) based polymeric demulsifier was studied.
Abdel-Azim A., Ancheyta J., Andersen S. I., Angle C. W., Angle C. W., Aveyard R., Barnes T. J., Bosio V., Cadena-Nava R. D., Czarnecki J., Czarnecki J., David Harbottle, Dickinson E., Dimitrov A. N., Ekott E. J., Erica Pensini, Erni P., Erni P., Ese M.-H., Fan Y., Fan Y., Fan Yang, Feng X., Feng X., Feng X., Ferri J. K., Ferri J. K., Gao S., Harbottle D., Hou J., Hua Y., Ishpinder Kailey, Jacob Masliyah, Jacqueline Behles, Kailey I., Kailey I. K., Kim Y. H., Kotsmár C., Kupai M. M., Lobato M. D., McLean J. D., Mohammed R. A., Mohammed R. A., Mohammed R. A., Pensini E., Petkov J. T., Plamen Tchoukov, Ramakers R. R. M., Ramalho J. B., Robins M. M., Singh B. P., Speight J. G., Spiecker P. M., Stewart A. C., Sun H.-Q., Tchoukov P., Tchoukov P., Vieira J. B., Wang Y., Wu J., Wu J., Xu Y., Yan Z., Yang X., Yanru F., Zaki N., Zhang H., Zhang L. Y., Zhang L. Y., Zhang L. Y., Zhang Z., Zhenghe Xu, Zifu Li, Álvarez L.   +73 more
core   +1 more source

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

The 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, Florian F. Schoeggl, Darius Remesat, Harvey W. Yarranton   +3 more
wiley   +1 more source

Pyrolysis of asphaltenes and biomarkers for the fingerprinting of the _Amoco Cadiz_ oil spill after 23 years [PDF]

, 2009
The chemical composition of the petroleum products accidently or deliberately released in the environment varies considerably with time under the action of biological (biodegradation) and physico-chemical (photo-oxidation) processes.
Fré, Jean Oudot
core   +1 more source

Toward Predictive Molecular Dynamics Simulations of Asphaltenes in Toluene and Heptane

ACS Omega, 2019
The conventional definition of asphaltenes is based on their solubility in toluene and their insolubility in heptane. We have utilized this definition to study the influence of partial charge parametrization on the aggregation behavior of asphaltenes ...
A. Glova, S. Larin, V. Nazarychev, J. Kenny, A. Lyulin, S. Lyulin   +5 more
semanticscholar   +1 more source

Heat Treatment Condition Influence on Novokuibyshevsk Vacuum Residue Component Composition [PDF]

, 2014
The article presents the information about thermal degradation of Novokuibyshevsk vacuum residue and change of products composition during this process. The optimal conditions for the thermal destruction of vacuum residue components were established. The
Golovko, A., Karpov, Y., Krivonosova, A., Krivtsov, E., Krivtsova, Nadezhda Igorevna   +4 more
core   +2 more sources