Fig. 7

Stability of catalyst. Time-on-stream of CO conversion and selectivity for ZnCr/low-Si AlPO-18 bifunctional catalyst. Reaction conditions: 390 °C, 4.0 MPa, 1200 h−1, H2/CO = 1, and oxide/zeolite mass ratio = 1. (C2–C4=: C2–C4 olefins; C2–C40: C2–C4 paraffins; C5 + : hydrocarbon products with more than five carbon)