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Enhanced viscosity reduction in heavy oils by subcritical water.

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Title: Enhanced viscosity reduction in heavy oils by subcritical water.
Authors: Cuijpers, M. C. M.1, Boot, M. D.1, Golombok, M.1,2 Michael.Golombok@Shell.com
Source: Journal of Petroleum Exploration & Production Technology. Mar2018, Vol. 8 Issue 1, p291-298. 8p.
Subject Terms: *Heavy oil, *Cracking process (Petroleum industry), *Viscosity, *Sulfur, *Alkanes
Abstract: We determine the chemical changes associated with viscosity reduction when heavy oil is cracked in subcritical water. The viscosity reduction has a temperature threshold for onset of 290 °C-this suggests an enhanced acid cracking regime associated with the maximisation of water dissociation at these conditions aided by the already increased solubility. The mean molecular weight is reduced by nearly 50%. Oxygen and sulphur are reduced by about half of this-either by expelled gas effluent (H2S) or by conversion into mono-aromatic base sulphur-containing structures. The amount of lower branched paraffins is increased. [ABSTRACT FROM AUTHOR]
Database: Energy & Power Source
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Header DbId: enr
DbLabel: Energy & Power Source
An: 128288239
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
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  Data: Enhanced viscosity reduction in heavy oils by subcritical water.
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  Data: <searchLink fieldCode="AR" term="%22Cuijpers%2C+M%2E+C%2E+M%2E%22">Cuijpers, M. C. M.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Boot%2C+M%2E+D%2E%22">Boot, M. D.</searchLink><relatesTo>1</relatesTo><br /><searchLink fieldCode="AR" term="%22Golombok%2C+M%2E%22">Golombok, M.</searchLink><relatesTo>1,2</relatesTo><i> Michael.Golombok@Shell.com</i>
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  Data: <searchLink fieldCode="JN" term="%22Journal+of+Petroleum+Exploration+%26+Production+Technology%22">Journal of Petroleum Exploration & Production Technology</searchLink>. Mar2018, Vol. 8 Issue 1, p291-298. 8p.
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  Data: *<searchLink fieldCode="DE" term="%22Heavy+oil%22">Heavy oil</searchLink><br />*<searchLink fieldCode="DE" term="%22Cracking+process+%28Petroleum+industry%29%22">Cracking process (Petroleum industry)</searchLink><br />*<searchLink fieldCode="DE" term="%22Viscosity%22">Viscosity</searchLink><br />*<searchLink fieldCode="DE" term="%22Sulfur%22">Sulfur</searchLink><br />*<searchLink fieldCode="DE" term="%22Alkanes%22">Alkanes</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: We determine the chemical changes associated with viscosity reduction when heavy oil is cracked in subcritical water. The viscosity reduction has a temperature threshold for onset of 290 °C-this suggests an enhanced acid cracking regime associated with the maximisation of water dissociation at these conditions aided by the already increased solubility. The mean molecular weight is reduced by nearly 50%. Oxygen and sulphur are reduced by about half of this-either by expelled gas effluent (H2S) or by conversion into mono-aromatic base sulphur-containing structures. The amount of lower branched paraffins is increased. [ABSTRACT FROM AUTHOR]
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=enr&AN=128288239
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        Value: 10.1007/s13202-017-0370-y
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      – Code: eng
        Text: English
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        PageCount: 8
        StartPage: 291
    Subjects:
      – SubjectFull: Heavy oil
        Type: general
      – SubjectFull: Cracking process (Petroleum industry)
        Type: general
      – SubjectFull: Viscosity
        Type: general
      – SubjectFull: Sulfur
        Type: general
      – SubjectFull: Alkanes
        Type: general
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      – TitleFull: Enhanced viscosity reduction in heavy oils by subcritical water.
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            NameFull: Cuijpers, M. C. M.
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              M: 03
              Text: Mar2018
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              Y: 2018
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