Recently, doubts were raised regarding the sodium sulfate crystallization simulation issue.
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Recently, the crystallization process of sodium sulfate was simulated using the NRTL-RK equation, and no errors occurred during the simulation. When using the heat exchanger load curves (primarily viscosity mumx, density RHOMX, and surface tension sigmx), it was found that the NRTL-RK equation cannot be used to obtain the physical properties of N2SO4, which in turn prevents the proper determination of H2O’s properties as well. Ultimately, errors occur in the process simulation as well. Removing the heat exchanger design property hxdsgn restored normal operation. Some netizens believe that this is caused by the presence of sodium ions, but if NA2SO4 is replaced with NACL, this problem will not occur. . Dear sea friends, let’s discuss this together. What is this problem?
It was also found that for this txport2 and txport, Hxdsgn2 is available as an option just like hxdsgn2. When the suffix is 2, the result is blank.
entrl-rk was also tried, and it falls within the scope of the nrtl equation as well. . The physical property data for Na2SO4 are not available, and H2O cannot be found either. . Haiyou, you can try it out in simulation.
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