The Simple Question, and Why It Deserves a Long Answer “Where should we install an oil-in-water sensor?” is one of the most frequent questions Shanghai ChiMay application engineers receive from refinery clients. The answer is rarely “at the outfall.” That single-point mindset — treat the discharge and hope the process behaves — is a legacy…
What Does Real-Time Conductivity Data Reveal About Crude Desalter Performance? Answers from Shanghai ChiMay Key Takeaways Conductivity is the most direct online proxy for chloride and salt content in desalter effluent water — often better than pH alone at diagnosing separation quality. A rising conductivity trend at stable pH indicates emulsion instability or surfactant contamination,…
COD (chemical oxygen demand) is the industry-standard integrated pollution parameter, and online COD sensors have quietly replaced laboratory batch analysis in many petrochemical settings. UV-Vis dual-wavelength COD sensors provide fast, reagent-free measurement suitable for real-time process control, and they are calibrated for hydrocarbon-rich matrices rather than clean water. Shanghai ChiMay COD sensors integrate directly with…
Why Desalter pH Matters More Than Operators Sometimes Realize Crude desalting sits between the tank farm and the atmospheric column, and its job is deceptively simple: remove salts, sediment, and free water before crude enters the furnace. Yet the chemistry inside a desalter drum is a delicate balance. Chlorides in the incoming crude hydrolyze at…
Summary Produced water — the largest byproduct stream from oil and gas production — is undergoing a strategic revaluation from disposal liability to reusable asset. In the Permian Basin, reuse has climbed from a small fraction of produced water in the late 2010s to roughly a quarter of basin volumes today, with operator targets pointing…
Refinery effluent streams routinely expose sensors to free oil, aromatics, and H2S concentrations that degrade elastomers within 6–12 months if wetted parts are not upgraded. Wastewater treatment spending across the refining sector is rising as effluent limits tighten and produced-water reuse mandates spread—a direction confirmed by every major market study of the sector, even though…