Fig. 6: Transient response for the oxidation of methane over Ni(5)/MOR-45 by changing the feed gas.
From: Zeolite-supported ultra-small nickel as catalyst for selective oxidation of methane to syngas
The feed gas was changed from A, in the presence of O2 (\(P_{O_2} \) = 0.03 atm) to B, in the absence of O2 (\(P_{O_2} \) = 0 atm) at 235 min. a (○) Conversion of methane and selectivities for (▲) CO and (▼) CO2. b Yields of (△) CO and (∇) CO2. c (●) Yield of H2 and (◊) mol ratio of H2 to CO. Reaction conditions: CH4:O2:Ar = (A) 0.06:0.03:balance (atm), (B) 0.06:0:balance (atm); total pressure, 0.1 MPa; temperature, 873 K; and SV = 3.0 × 104 mL h−1 g-cat−1.
