Study on regenerative process of the new carbon capture technique based on antisolvent crystallization to strengthen crystallization

A new technique for reinforced NH₃ with a low carbonized ratio to be crystallized by means of antisolvent crystallization using ethanol as the antisolvent was put forward in view of existing problems of carbon capture by NH₃. Through the application of antisolvent crystallization ot reinforce the crystallization process, low energy consumption of regeneration could be achieved easily due to saving the energy to heat the H₂O of carbonized NH₃ in the desorption process. Additonally, if the rate of rising temperature is 5 K/min, the crystal product will be totally decomposed, which has advantages ove the process of rich carbonated NH₃. The % conversion of crystal product can be 100% when the temperature is 350 K, which can be achieved by the waste heat from the power plant that can be used as a heat source of the regeneration process. When the regenerated temperature is between 313K and 353 K, the active energy can be 44 kJ/mol. When the rate of rising temperature is 5 K/min, 10 K/min, and 25 K/min respectively, the rate of decomposition and active energy at different experimental conditions were investigated.