Vacuum distillation process design
Thread Content
The factory now has a sulfonation production line, but the recovery rate of the swelling agent dichloroethane is not high. The use of vacuum distillation process to improve the target recovery rate is discussed. It is necessary to add a vacuum distillation unit to the existing production line. The vacuum unit draws air from the dichloroethane storage tank; the outlet of the vacuum pump is connected to a water tank, the gas phase from this water tank goes to a condenser, and the outlet of the condenser leads in two directions: one path leads to the waste gas tower, while the other path returns to the water tank via a liquid seal tube. There are only these process equipment items. Process design parameters: vacuum level of -80 kPaG, suction temperature of 50–110°C, suction volume of 190 Am3/h; the waste gas tower can provide a vacuum level of -2 kPaG. Could you give some advice? What additional data is needed for my process design? How should I calculate the selection parameters for water-jet vacuum units? Thank you for your help
This post was last edited by 455901382 on 2015-8-17 at 16:45. Go for a dry vacuum pump – 100% direct condensation and recovery after the pump, ensuring pure recovery without any wastewater generation. QQ 455901382
For dry vacuum pumps, is steam the power medium? What is used for 100% condensation after the pump? The mixed liquid recovered in my process needs to be reused.
The working chamber is free of oil, water, and any other substances; the gas drawn in does not suffer from cross-contamination. It can be directly condensed and recovered after passing through the pump, allowing for its recovery in its original state for reuse. Check out the advantages of dry pumps on my Baidu Wenku page: http://wenku.baidu.com/link?url=Pk2Rl-1LVwx0Ea0cBZlR-p3kP7xJvccWJvOa5wgIsaw9qsaOg4pqzTAuVPLnMqnh1nTsbk8DErF0sNtsC6WpbYAtdn_YHy_x4xjOYZe-lCy