AlpHa Measurement Solutions | pH in Refining & Petrochemical
pH in Refining & Petrochemical
The petrochemical and refining industries utilize water as a critical component. Monitoring and controlling pH throughout multiple stages of the production process is essential.In the petrochemical process, pH is measured both upstream and downstream. Upstream applications include fracking, drilling, and exploratory operations. Downstream applications include wet gas scrubber, merox (mercaptan removal), and wastewater generated within the plant. In refining, where fuel, lubricants, and other distillate end products are generated, the pH of water is a processing requirement and an indicator of potential contaminants. Sour water stripping, cracker scrubbers, and corrosion control in piping systems are examples where pH measurement is used for monitoring and control. Read More
Petrochemical and refinery operations are harsh environments which therefore require robust sensor designs. Specialized mechanical insertion assemblies are required to avoid downtime and alleviate safety concerns when maintaining or replacing pH sensors. The appropriate housing material (Hastelloy, PEEK, Kynar, etc.) is selected based upon the sample matrix and temperature requirements. The reference junction is equally as critical. The Tuff-Tip is a unique design that provides a low profile guard for the pH glass without protruding prongs that accumulate process material or debris. It incorporates a large ceramic or Teflon junction that reduces the chance of process material fouling the porous junction. The Tuff-Tip also aids in keeping the pH membrane and reference junction clear from coating.