Title : Catalysts and catalytic processes for converting waste to fungible liquid fuels and chemicals
Abstract:
Fungible liquid fuels and chemicals produced from renewable and alternative feedstocks are essential components of the future transportation and commodities outlook. The abundant and low-cost raw materials are carbon dioxide (GHG) as carbon source and water as hydrogen source. Fatty acids and triglycerides mixtures separated from low-cost waste are also renewable feedstock.
The Blechner Center has developed proprietary technologies for production of fuels and chemicals from renewable feedstocks based on fundamental research and development of catalytic processes. The presentation will focus on the scientific aspects of the novel Fe-based and SAPO-11 catalysts and catalytic processes studied and developed at the Blechner Center. The effects of the nature of catalysts precursors, especially their structure and chemical state of iron ions in different Fe-oxide matrices were studied. Solid mono-, bi- and tri-metallic oxide matrices where Fe(2+,3+) ions are distributed in different chemical/ spatial environments. All matrices were basified with K-promoter. The optimal activation conditions for every material were selected based on TPR/TPC/XRD data. The Fe-matrices were characterized by N2- adsorption, temperature-programmed reduction (TPR), temperatureprogrammed carburization (TPC), X-ray diffraction (XRD), scanning and transmission electron microscopy (SEM, HRTEM-EELS), XPS. The SAPO-11 catalysts display relatively low hydrothermal stability in hydrotreating of vegetable oils. Application of XRD, HRTEM, NH3 TPD, TPO, H2 pulse chemisorptions and Si MAS NMR revealed that the reason for the hydrothermal deactivation of SAPO-11 is partially
the reversible desilication of its framework.
