Identification, conversion and reactivity of diolefins in thermally cracked naphtha

• Author / Creator

  Páez Cárdenas, Nidia Y

• Bitumen extracted from Canadian oil-sands has a high viscosity, which limits its transportation. Field upgrading has become an option to overcome that limitation, without having to dilute the bitumen. During the field upgrading of bitumen, solvent deasphalting in combination with thermal cracking (visbreaking) can be used to produce a material ready to be transported for refining. In the thermal cracking process, mono-olefins and diolefins are generated especially in the light fractions. In many cases the olefin content exceeds the Canadian pipeline specification of 1-hexene > trans-1,3-pentadiene > 1-methylcyclohexene > 3-methyl-1,3-pentadiene > cyclohexene > 1,3-cylclohexadiene > vinylcyclopentane. According to the results, compounds with linear structure were more reactive, and the presence of branches or a cycle in the molecules decreased their reactivity for hydrogenation.

• Subjects / Keywords

  • Reactivity sequence of olefinic species
  • Diels-Alder cycloaddition to convert diolefins
  • Hydration as treatment of diolefins
  • Diolefins identification

• Graduation date

  Fall 2016

• Type of Item

  Thesis

• Degree

  Master of Science

• DOI

  https://doi.org/10.7939/R3HD7NZ0Q

• License

  This thesis is made available by the University of Alberta Libraries with permission of the copyright owner solely for non-commercial purposes. This thesis, or any portion thereof, may not otherwise be copied or reproduced without the written consent of the copyright owner, except to the extent permitted by Canadian copyright law.