The work demonstrates the great potential of using a vanadyl porphyrin probe to study resin–
paraffin aggregation processes in oils. The dynamics and polarity of the local environment of …

This work aims to widen our knowledge about the pyrolysis, and catalytic pyrolysis of
asphaltenes at low and high pressure through experimental and simulation approaches …

The FCC decant oil (FCC-DO), primarily comprising 2-to 5-ring aromatic hydrocarbons with
short alkyl side-chains, is widely acknowledged as the optimal precursor for the production …

The precipitation and deposition of asphaltene on solid surfaces present a significant
challenge throughout all stages of petroleum recovery, from hydrocarbon reservoirs in …

During the production of crude oil, asphaltenes are prone to precipitate due to the changes
of external conditions (temperature, pressure, etc.). Therefore, a series of research studies …

The compositions of extractants containing xylene (G) and n-heptane (P) recovered and
reused in the asphaltene extraction process were determined by densimetry and the …

Theoretically clarifying the sources of viscosity of heavy oil is an essential premise for
achieving effective exploitation and viscosity reduction. However, the complicated …

Oxidation in crude oil production is unavoidable. Oxidized asphaltenes, interacting with
waxes during crystallization, profoundly alter wax precipitation and gel behavior in crude …

This study is focused on the understanding of nC 7 asphaltene-aggregates oxidative
behavior under high-pressure conditions. For this aim, different asphaltene model solutions …

In this work, quantum chemical calculations and molecular dynamics simulations were
employed to investigate the aggregation structure of asphaltene (a key component in heavy …