Continuous on-Line pH Monitoring and Control for Dilution Steam System Reliability
- Type: Conference Presentation
AIChE Member Credits 0.5 AIChE Members $19.00 AIChE Fuels and Petrochemicals Division Members Free AIChE Graduate Student Members Free AIChE Undergraduate Student Members Free Non-Members $29.00
- Conference Type: AIChE Spring Meeting and Global Congress on Process Safety
- Presentation Date: August 21, 2020
- Duration: 20 minutes
- Skill Level: Intermediate
- PDHs: 0.40
The challenges of quality monitoring and control in a DSS include:
- potential for personnel exposure and extensive manpower required for capturing samples and tracking system changes,
- high variability of impurities causing emulsions, fouling, and corrosion,
- increasing corrosion rates due to frequent pH swings, and
- low visibility due to infrequent sampling and lack of data points.
These may be addressed through automation technology using continuous pH and water turbidity data coupled with active control of neutralizer to reduce overall corrosion rates and extend run lengths of the quench and DSS components.
Two case studies will be presented: In one an ethylene plant which was able to improve turbidity control and minimize pH swings during furnace swapping and operational upsets. A second cracker reduced the corrosion rate and emulsions in the system, thereby improving the process water quality in the quench system with lower hydrocarbon carryover to the downstream units.
|AIChE Member Credits||0.5|
|AIChE Fuels and Petrochemicals Division Members||Free|
|AIChE Graduate Student Members||Free|
|AIChE Undergraduate Student Members||Free|