Systematic studies of new catalytic pyrolysis systems in a continuous-flow unit for C1-C4 light hydrocarbons have been carried out. The systems have been developed on the basis of: Zn-, Cd-, Sr-, Ce-containing polyphosphate protec- tive film coatings of the steel reactor surface; highly dispersive materials modified by zinc-, phosphorous-, and silicon- organic compounds; nano-sized ultrafine metal particles formed by electroexplosive dispersion of Ag, Al, Cu, Fe, Ni, Ti, Pt, W monometallic and bimetallic wires. The studies were performed in the temperature range of 500-850°C, a gas mixture flow rate of 20-200 mL min-1, a contact time of 0.75-155 s, and a heterogeneous factor value of (2.0-2.9) 105 cm-1. An increase in temperature, contact time and heterogeneous factor value has been found to increase hydrocarbon conversion and the yield of lower alkenes. Nano-sized W based catalysts have shown the best results in terms of the yield of ethylene and propylene and coking inhibition.
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