June 2009

Special Report: Process/Plant Optimization

Rethink your liquid-liquid separations

A fresh look investigates general principles in designing process coalescers

Cusack, R., Koch-Glitsch, LP

Efficient liquid-liquid separations are an integral part of many industrial processes. Water entrained in oil and other hydrocarbon products can impede quality specifications. Entrained oil in process water streams puts additional demands on effluent treatment systems. Under the present economic environment, processing production demands push plants and existing equipment beyond the original design capacity. Equipment that formerly made clean-phase separations can no longer do so. And for new plants, strong economic incentives push process designers to incorporate equipment with smaller footprints to minimize weight, plot space and capital costs. Several examples highlight typical issues

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