CPEV 2021 03 3

Pagina 1

Fuels from fossil and renewable sources Basic concepts (score: max 6 points): 1) Main characteristics of gasoline and diesel fuels (and final blends) Thermodynamics (score: max 10 points): 2) Write the system of equations that we need to solve to determine the composition at thermodynamic equilibrium at the outlet of a Methanol Synthesis Unit. Assume a feed with H2/CO = 2 and CO2 = 10%. Evaluate qualitatively (graphs and comments) the effects of T and P on conversion and product distribution. What would be the effect of increasing the H2/CO feed ratio? What the expected impact of varying CO2 co-feed? Comprehensive knowledge (score: max 10 points) 3) We have seen that the refinery is huge H2 consumer; select one process where H2 is involved as reactant, treating all the relevant aspects: stoichiometry of the involved reactions, their TD characteristics, kinetic factors, reactor design, plant … In depth knowledge (score max 4 points): 4) Illustrate the HVO process (Hydrogenation of Vegetable Oil). Based on the knowledge from the refinery processes, what could be the catalyst formulation? What the reactor design?