Dilution of H2SO4 with water and HCl: ternary system

[Atlas99]

Hi

I am diluting sulphuric acid with water and HCl. I do not have the choice to dilute it with water only. The specifications are here below:

Stream 1:
98% H2SO4
2% H2O

+

Stream 2:
19% HCl
78% H2O
3% CaCl2

=

Stream 3:
55% H2SO4
35% H2O
8% HCl
2% CaCl2


Where can I find the equilibrium/thermodynamic data on this ternary system? I couldn't find any information concerning this problem. Are there any papers published on this mixture? Will HCl flash off due to large heat generation or not? How does the presence of HCl affect the amount of heat released from the dilution?


Thank you
Atlas99

 

[siretb]

Look at thread 338-132679 (corrosion)
The heat release seems to be much less. I think that it is best to carry a lab experiment. A full enthalpic/electrolyte model may help you (simulators like ASPEN can do that)