Wilde

Leader of the group "Utilization of Renewable Resources "

Research

  • Scientific-technological development of novel solid catalysts and processes for the utilization of biomass-derived feedstocks into biofuels and high value-added chemicals
  • Rational design of solid catalysts with defined porosity
  • Textural modification of zeolites

Current Projects

Liquid fuels from an integrated hydrothermal conversion of biomass- FEBio@H2O (funded by BioProFi-Bioenergie-Prozessorientierte Forschung und Innovation im Rahmen des 6. Energieforschungsprogramms der Bundesregierung)

This project aims to develop a process for the production of liquid transportation fuels from real biomass up to a first pilot scale. Hydrocarbons which can be used as liquid transportation fuels are obtained directly from a biomass-hydrolysate by aqueous-phase processing. Thereby, the reforming of the biomass-hydrolysate is directly combined with the catalytic reduction. The key issue here is that the external supply of molecular hydrogen is avoided. Such a conversion requires a complex, multifunctional catalyst system. The goal of this project is, thus, the rational design of multifunctional catalysts for this challenging, but yet attractive utilization of biomass. In addition, the project focus on improving the catalyst stability under the rather harsh, hydrothermal conditions of aqueous phase processing and on investigation of the mechanisms which leads to catalyst deactivation.

Plant-Oil derived Epoxides as Building Blocks for Value-added Products by Heterogeneously Catalyzed Conversion of FAMEs with H2O2

Plant oil-derived feedstocks are one of the most inexpensive and readily available renewable resources for biobased and biodegradable materials and constitute a valuable alternative to the finite fossil sources. Especially, epoxidized oils and derivatives are attractive indermediates for a broad range of large-scale industrial applications. Currently, epoxidation of plant oils is mainly carried out with either pre- or in situ-formed organic peroxyacids. Homo- and heterogeneously catalyzed epoxidations are the preferred alternatives. As reported previously, the epoxidation of unsaturated fatty acid esters derived from renewable raw material, in particular, rapeseed oil methyl ester (RME), i.e. biodiesel, can be achieved in an environmentally benign way over titanium silicalite-1 (TS-1) with H2O2 as the sole oxidizing agent. The biodiesel can be converted without the need for additional purification. Almost complete biodiesel conversion is achieved after 24 h with an epoxide selectivity of up to 80 %. However, the conversion of fatty acid esters over conventional TS-1 is limited by mass transfer due to the size of its micropores. To overcome these mass-transfer limitations our research aims to design TS-1 based catalysts with hierarchical porosity by using “top-down” as well as “bottom-up” strategies.

last modified: 29.02.2016

Dr. Nicole Wilde
Institute of Chemical Technology
Linnéstr. 3
04103 Leipzig

Room: 507

Phone: 0341 97-36333
E-Mail