Both petroleum and coal derived asphaltene finds important place on the present research
areas of hydrocarbon based liquid and solid fuels. It has earned a name of 'unwanted'fame …

Heavy oils and extra-heavy oils (bitumens) are difficult to produce and transport due to
problems associated with the aggregation of asphaltene molecules. Asphaltenes, a primary …

Precipitation and deposition of asphaltene are considered as catastrophic issues facing the
petroleum industry. Asphaltene deposition mainly occurs at variety places such as formation …

Asphaltene aggregations of heavy crude oils provoke their destabilization and affect their
viscosity significantly during their production, transportation, and refining. This problem was …

The deposition of asphaltenes in the petroleum industry has been found to be a significant
factor affecting the profitability of petroleum production and refining. For this reason, many …

A comprehensive study has been carried out by utilizing the molecular dynamics technique
in order to investigate the behavior of the N-(1-hexylheptyl)-N'-(2-phenylpropanoicacid) …

The presence of metalloporphyrins alongside asphaltenes in heavy fractions of crude oil is a
key issue in petroleum exploration and upgrading. These compounds are also expected to …

Precipitation of asphaltenes causes large losses to the petroleum industry. Therefore,
dispersant additives are generally used to prevent this precipitation. On the other hand …

This work presents a systematic study of asphaltene pre-aggregation phenomena in the
absence and in the presence of ionic liquids (ILs) from the family of 1-alkyl-3 …

The effects of two amphiphiles, DBSA and LA, on the associating state and viscosity of three
heavy oils with different resin/asphaltene (R/A) mass ratios were investigated through DSC …