DD mixed agent rectification anticorrosion system
By adding a dehydrator and using a liquid ring vacuum pump to the DD mixed distillation system, the corrosion problem caused by chloride ions and moisture was solved, achieving safe and stable system operation and cost reduction.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- TIANJIN CHENLI ENG DESIGN CO LTD
- Filing Date
- 2025-08-27
- Publication Date
- 2026-07-24
AI Technical Summary
The corrosion problem caused by the presence of chloride ions and moisture in the DD mixed distillation system is serious, affecting the safe and stable operation of the unit. In particular, the corrosion gradually intensifies during the distillation process, leading to equipment damage and increased maintenance costs.
Adding a dehydrator at key process points removes moisture from the system, and using a liquid ring vacuum pump, adding sodium hydroxide solution to the circulating working fluid of the vacuum pump to adjust the pH to 10-12 to neutralize acidic gases. The combination of the vacuum pump and the dehydrator reduces system corrosion.
It effectively reduces corrosion within the system, ensures the safe operation of the DD mixed distillation system, reduces equipment damage and maintenance costs, and improves the stability and safety of the system.
Smart Images
Figure CN224541008U_ABST