• Title/Summary/Keyword: catalytic aquathermolysis

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Viscosity Reduction by Catalytic Aquathermolysis Reaction of Vacuum Residues (접촉식 가수열분해 반응에 의한 감압잔사유의 점도 강하에 대한 연구)

  • Ko, Jin Young;Park, Seung-Kyu
    • Applied Chemistry for Engineering
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    • v.29 no.4
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    • pp.468-473
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    • 2018
  • In this study, the reforming reaction of vacuum residues (VR), high viscosity oil residues produced from vacuum distillation process of petroleum oil, was carried out using catalytic aquathermolysis reaction. VR showed a prone to decrease the amount of resins and asphaltenes in the constituents, and to increase saturates and aromatics when reacting with steam at 30 bar and above $300^{\circ}C$ for 24 h. When the amount of steam is not enough at this reaction, the asphaltene content in the products was rather increased after the reaction. As a result of the catalytic aquathermolysis using the metal oxide-zeolite catalyst with the decaline as a hydrogen donor, a 10% decrease in resin and asphaltene as well as a 10% increase in the aromatic hydrocarbon were observed. Consequently, the viscosity of VR decreased by 70% after the reaction. GC-Mass spectroscopy showed that the aquathermolysis of VR resulted in the decomposition of the resins and asphaltens into a low molecular weight material.