Are NH3 and CO2 in ionic or molecular form?
Thread Content
At 6 MPA and 180°C, in a mixture of NH3, CO2, and H2O, are NH3 and CO2 in ionic or molecular form? How can it be determined? Can it be calculated using ASPEN?
Ammonia and carbon dioxide react with each other, so both ionic and molecular forms must exist.
There are many such situations in the urea production process; in the liquid phase, the vast majority are ions, mainly NH4+、HCO3- and NH2COO-, while in the gas phase they exist in molecular form
Is it possible that when the temperature rises to a certain level, everything consists of gaseous molecules? How is this situation calculated?
Of course it’s possible; either increasing the temperature or reducing the pressure can achieve complete vaporization. One can consult phase diagrams or use simulation software to figure this out