The rate of Methanol synthesis over a Cu/ZnO/Al2O3 (60:30:10) catalyst has been measured using CO2/H2 (10:90) and CO/CO2/H2 (10:10:80) streams at 433, 443, 453,
463 and 473 K. Using the CO2/H2 stream, it requires 12 ×
103 s to achieve steady-state performance; this time reduces to 5.4 × 103 s on increasing the
temperature to 463 K. Using the CO/CO2/H2 stream, steady
State performance is not achieved even after 14.4 × 103 s at 433 K
but is achieved after 9 × 103 s at 463 K. Significant deviations
from steady state behavior (~40% of steady state) are observed only at 453 K and
only using the CO2/H2 feed when gas
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