Asphaltenes are a class of high-density molecules obtained from crude oil. The implications of asphaltene stability within the oil matrix production affect the whole oil supply chain production. This reduces the oil recovery because of mobility changes in the reservoir [1]. So far, the experimental and theoretical investigations no have addressed discussions at electronic level regarding a nano...

Bio-asphalt is a binder composed of bio-oil and petroleum asphalt under certain conditions. In this study, sludge (wt 10%) was added into matrix to prepare bio-asphalt for the first time. The effects on performance essence interaction between components were investigated using test, molecular dynamics (MD) simulation, density functional theory (DFT). Chemical analysis showed that ester compound...

GAWRYS, KEITH LOUIS. How Asphaltenes Aggregate: Role of Chemistry and Solvent. (Under the direction of Peter K. Kilpatrick) Asphaltenes from three crude oils were separated on a preparatory-scale into 20 30 discrete subfractions by sequential precipitation from mixtures of n-heptane and toluene. The earliest fractions precipitated were characterized by lower than average aromaticity and atomic ...

One of the possible fluid-fluid interactions during water-flooding in oil reservoirs, that is still debated, effect injected brine salinity on asphaltene destabilization. If precipitation induced by changes reservoirs and surface facilities, this could have a massive impact economy low project. Therefore, study aims to investigate amount governing destabilization mechanisms. Direct measurements...

Asphaltenes are a group of exotic hydrocarbons found in bitumen and other forms heavy crude oil derivatives. These hydrocarbons, with elusive chemistry, give derivatives (CODs), such as bitumen, its characteristic properties. In they form stable aggregates by interacting molecules, called asphaltene aggregates. Attempts have been made to enhance nanoparticles, like graphene Such studies success...