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Showing 1 to 4 of 4 for “"Visbreaking"”.

  1. Partial Upgrading of Bitumen Through Combinations of Deasphalting and Visbreaking

    … costs. One approach to do so is to combine visbreaking (VIS) and solvent deasphalting (SDA) to obtain a lower density and viscosity bitumen. Visbreaking is a mild thermal cracking process that reduces viscosity and density but risks asphaltene precipitation and coke formation at high …

    calgary Repository record for Partial Upgrading of Bitumen Through Combinations of Deasphalting and Visbreaking (opens in a new tab)

  2. Viscosity and Stability of Visbroken Fractionated Oils

    … through a combination of de-asphalting and visbreaking processes. Visbreaking reduces the viscosity of the oil, however, if carried too far, this process can destabilize the oil (cause asphaltene precipitation and coke formation). De-asphalting decreases the oil density and can allow more …

    calgary Repository record for Viscosity and Stability of Visbroken Fractionated Oils (opens in a new tab)