Application of chemometric tools to catalysis : carbon monoxide hydrogenation on a multipromoted Rh/SiO2 catalyst

摘要: Abstract Principal components analysis and multiple linear regression have been applied to evaluate trends tendencies in the catalytic behaviour of a multipromoted rhodium catalyst (Rh-Ir-Fe-Ti/SiO2) carbon monoxide hydrogenation with special emphasis laid on oxygenated products. By varying temperature (488–623 K), pressure (0.1–6 MPa), space velocity (1000–8000 h−1) hydrogen-to-carbon ratio (0.5–3.0), influence these parameters consumption rate conversion monoxide, selectivities products, as well productivity ethanol has evaluated. Chemometrics shown be useful method for rationalization effective presentation observations. A high spacetime yield [STY (C2-ol)] is obtained increasing temperatures up ca. 590 K. At higher increase selectivity towards methane at expense oxygenates results drastic decrease STY (C2-ol).