Journal
JOURNAL OF DISPERSION SCIENCE AND TECHNOLOGY
Volume 34, Issue 4, Pages 455-461Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/01932691.2012.681609
Keywords
Aggregation; asphaltene; breakage; Monte Carlo; simulation
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In this article, the aggregation and breakage processes are simulated through Monte Carlo method for asphaltene aggregates under shear-induced petroleum mixtures. The simulation results are verified by the aggregate size distributions of two types of asphaltenes having different fractal dimensions extracted from Iranian crude oil types. The obtained aggregate size distributions are affected by shear rate, toluene to heptane ratios and the oil type. The dynamic evolution of asphaltene aggregates shows an ascendant trend with time until they reach a maximum average diameter and then descent to a steady-state size. The asphaltene fractal dimension affects the aggregation process.
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