I need help understanding how to simulate the reaction between magnesium oxide and water to produce hydrogen and magnesium oxide using Aspen What reactor type should be chosen?
Thread Content
Help: How can 1 Aspen be used to simulate the reaction of magnesium oxide with water to produce hydrogen and magnesium hydroxide? What reactor type should be chosen? 2 Magnesium oxide reacts with water to produce hydrogen and oxygen. Can the reaction of magnesium oxide take place at high temperatures? Waiting online, it’s quite urgent~ Thank you
The type of reactor depends on the data you want to obtain. For example, if you provide the conversion rate, then a metered reactor will suffice, as it allows for the determination of material balance and heat balance. If you provide kinetic data, then a plug-flow or fully mixed flow reactor is appropriate; it should also be possible to determine whether a reaction can take place at high temperatures
Hello, why might the reaction not occur in the Aspen simulation after the reactant flow rate changes? For example, in a decomposition reaction of a substance, will Aspen determine on its own whether the reaction occurs under certain temperature and pressure conditions? Thank you
Why might the reaction not occur under Aspen simulation after the reactant flow rate changes? -----I didn’t say that. Whether a reaction can occur at a certain temperature and pressure depends not only on thermodynamic equilibrium but also on kinetics. For example, the conversion of carbon into diamond is possible from a thermodynamic perspective, but from a kinetic standpoint, if only a slight amount of reaction occurs after XXXX years, can we really consider it a reaction that takes place? If you use a balanced reactor for simulation, Aspen won’t take into account the kinetics; perhaps turning carbon into diamond would work and allow you to become rich. But when using a PLUG (kinetic model), you’ll find that the amount of diamond produced is 0.000000000000000000000000000000000000001 – it’s likely that even after many years, you won’t be able to obtain 1 mg of diamond.
Oh~ I see now; since I really didn’t know the kinetic equations for the reaction, I chose the equilibrium model of a fully mixed RCSTR reactor, as well as a stoichiometric reactor. . Thank you
May I ask again how to find this differential equation? I’m not majoring in chemical engineering, so I don’t know. Thank you
Dynamics can only be found in the literature; if possible, conduct experiments to measure it yourself. Additionally, the RCSTR model you have chosen is also a dynamics model, while the equilibrium model is REquil