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Treating Oil Sludge by Microemulsion System Containing Sodium Dodecyl Sulfonate

  • INNOVATIVE TECHNOLOGIES OF OIL AND GAS
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Chemistry and Technology of Fuels and Oils Aims and scope

A large amount of oily sludge is generated in the production process of oilfield, which causes serious pollution to the environment. The oil sludge from Jidong Oilfield in China was treated by microemulsion system containing sodium dodecyl sulfonate (SDS) as surfactant. The microemulsion was prepared from n-heptane as oil phase and aqueous solution containing SDS, n-butanol and sodium chloride as water phase. A study was conducted on the effects of system composition and treatment process on the oil removal efficiency. The results showed that when the volume ratio of n-heptane to water was 1:1, and the weight content of SDS, n-butanol and sodium chloride was 2.43%, 11.82% and 3.89% respectively, the oil removal efficiency was the highest. 79.8% of the oil could be removed when the treatment amount was 10 g (in microemulsion prepared by 100mL water, the same below) under the system composition mentioned above. The oil removal efficiency could be furtherly optimized to 83.8% by treating the sludge under 30°С for 2 hours.

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Authors and Affiliations

  1. Hebei Petroleum University of Technology, Chengde, China

    Han Xu, Zihan Pan & Xiaonan Wu

Authors
  1. Han Xu
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  2. Zihan Pan
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  3. Xiaonan Wu
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Corresponding author

Correspondence to Han Xu.

Additional information

Translated from Khimiya i Tekhnologiya Topliv i Masel, No. 4, pp. 61–65 July –August, 2022.

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Xu, H., Pan, Z. & Wu, X. Treating Oil Sludge by Microemulsion System Containing Sodium Dodecyl Sulfonate. Chem Technol Fuels Oils 58, 648–652 (2022). https://doi.org/10.1007/s10553-022-01432-1

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  • DOI: https://doi.org/10.1007/s10553-022-01432-1

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