Corrosion issues in MTBE plants
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Seeking help: Corrosion mitigation strategies for MTBE plants, conventional corrosion monitoring methods
Add deoxidizer and monitor iron ions
The main issue is the wash tower: the methanol present in the C4 hydrocarbons is washed away along with the sulfonic acids in the catalyst, which results in acidic water that causes corrosion to the tray surfaces and equipment. Monitoring methods: 1. Regularly check the pH value of the wash water; once acidity is detected, increase the amount of water used for replacement； 2. Utilize the maintenance time to inspect the trays of the wash tower and measure the thickness of the pipes ；