Catalytic Conversion of Pyrolysis Gases

• Author / Creator

  Shamaei, Ladan

• In every thermal upgrading process, short-chain hydrocarbons contain a part of the gas byproducts. These compounds are hydrogen-rich materials, which are considered as low value wastes. In this study, the efforts were made to catalytically convert these off-gases to liquid fuels. Synthetic gases were used as model reactant gases. Four types of zeolite including ZSM-5, Mordenite, Ferrierite, and Zeolite Y were tested. Among these catalysts, ZSM-5 was the most active one for alkene conversion. At adiabatic condition, it had the capability of producing aromatic compounds. Performance of four types of nickel incorporated catalysts including ZSM-5, two kinds of silica-alumina (with 20 wt.% and 40 wt.% SiO2), and silica were also investigated for this purpose. Among these catalysts, reduced form Ni (on silica) exhibited significant dehydrogenating activity for butane. ZSM-5 had the capability of making cyclic compounds, while silica-aluminas mainly had nickel aluminate in their framework.

• Subjects / Keywords

  • Catalysis
  • Olefin
  • Oligomerisation

• Graduation date

  Spring 2013

• Type of Item

  Thesis

• Degree

  Master of Science

• DOI

  https://doi.org/10.7939/R32D2C

• 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.