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July 13, 2026Energy & Fuels

Compositional Characterization of Oil Sludge in a Crude Oil Storage Tank

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Authors

HHHaokun HuSQShujuan QiuSHShanpeng Han

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Overview

Randomized trial evaluates molecular changes during oil sludge formation, suggesting mechanisms for improved flow stability.

Key Points

  • The aim is to characterize the molecular composition of sludge in crude oil storage tanks and understand its formation mechanisms.
  • Systematic characterization of bulk crude oil and sediment from an industrial storage tank
  • Molecular analysis using Fourier-transform ion cyclotron resonance mass spectrometry (FT-ICR MS)
  • Evaluation of organic and inorganic constituents, focusing on wax and asphaltene fractions
  • Sludge contains 33 wt % waxes and 8 wt % asphaltenes, with significant enrichment compared to crude oil
  • Deposited waxes primarily consist of n-alkanes in the C30–C50 range
  • Oxidative species like sulfoxides and naphthenic acids with low double bond equivalents were abundant in sediments and asphaltenes, respectively.

Cite This Study

Hu et al. (2026) studied this question.

synapsesocial.com/papers/6a547f6d475c38bf615a522fhttps://doi.org/10.1021/acs.energyfuels.6c01196
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