asphaltene


Also found in: Wikipedia.

asphaltene

[a′sfȯl‚tēn]
(materials)
Any of the dark, solid constituents of crude oils and other bitumens which are soluble in carbon disulfide but insoluble in paraffin naphthas; they hold most of the organic constituents of bitumens.
References in periodicals archive ?
Once the asphaltene and resin data were fitted, the number of terminators and propagators in the mixtures of asphaltenes and resins was calculated.
The liquid products obtained from the liquefaction process were separated into oils (hexane soluble), asphaltene (toluene soluble but hexane insoluble) and preasphaltene (THF soluble but toluene insoluble), depending on the differences in their solubility.
Harmonite is an asphaltene and resin rich product; a high molecular weight complex mixture in which lighter weight fractions have been driven off due to natural oxidative aging and patented high heat processing steps.
PVTSIM is reservoir engineering software developed by Calsep A/S, and has been used by consulting Engineers in QP's FD and FO Reservoir groups to predict asphaltene precipitation using QP data.
Standardization of the spectroscopy method UV-Visible to determine the asphaltene content in heavy crude oils
Automated High-Performance Liquid Chromatography Saturate, Aromatic, Resin, and Asphaltene Separation (TechBrief) Publication Number: FHWA HRT 15-055
Chemical analysis of the shipment revealed that the heavy fuel oil (mazut) supplied by Vitol contained asphaltene well in excess of the specifications.
In the experiment, the sulfonated modified asphalt is composed of four parts, which are saturated, aromatic, colloid, and asphaltene with SBS polymer and light calcium carbonate added at the same time.
Citations on different models of the asphaltene structure are found, being one of them a model that considers a pillared layers of aromatic structures array (Leyva et al.
Crude oil is a complicated complex of various compounds including hydrocarbons, nitrogen, sulfur and vanadium that the hydrocarbons including aromatic compounds, aliphatic and asphaltene (Dorfer, 1992).
It indicates that at such high temperature in molten asphalt PPO could be synthesized from DMP with collaboration of vanadium and some amines in asphaltene of asphalt such as TMEDA-like amino compounds [27, 28].