Help: ASPEN simulation example for the natural gas steam reforming reaction
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I have started learning ASPEN and would like to simulate the reactions of natural gas steam reforming: CH4+H2O---CO+3H2 (1), CO+H2O---CO2+H2 (2), and CO2+CH4---2CO+2H2 (3). The first reaction is the main reaction, while the latter two are side reactions. I want to conduct the simulations at 880°C, 2.9 MPag, with a water-to-carbon ratio of 2.5, but I haven’t been successful so far. I hope experienced folks can offer some guidance.
1. During simulation, there are 3 reaction equations: CH4+H2O---CO+3H2 (1), CO+H2O---CO2+H2 (2), CO2+CH4---2CO+2H2 (3). Among them, the third reaction equation, CO2+CH4---2CO+2H2 (3), is the sum of the first two equations and is therefore invalid; it should be removed. It is sufficient to use the first two equations, CH4+H2O---CO+3H2 (1) and CO+H2O---CO2+H2 (2). 2. Model using the balanced reactor module.