Anotace:
Renewable sources such as CO2, short-chain alcohols from the fermentation of waste biomass or other short-chain oxygenated hydrocarbon derivatives from the pyrolysis of waste biomass are suitable feedstocks for the synthesis of long-chain valuable chemicals such as alkenes and alkanes. Dry methane reforming provides a synthesis gas with a molar H2/CO ratio of about one, which is suitable for Fisher-Tropsch synthesis. Partial dehydration reaction of butanol accompanied by carbon-carbon condensation reactions yields ethyl hexanols, 4-heptanone, heptenes and octenes. Heterogeneous catalysis of these reactions has not yet reached industrial scale, so future investigation is of real importance. The proposed projects will investigate solid catalysts based on basic zeolites, basic metal oxides, lanthanoid oxides or hydrotalcites. These heterogeneous catalysts will be characterised in terms of textural properties, XRD, SEM-EDX, FTIR, UV-Vis DRS, XPS and the like. The synergy between support and active phase will be evaluated in dry reforming of CH4 and C-C coupling of 1-butanol.