During caustic refining, crude oil is first treated to remove the color, odor, and bitterness. Once complete, the oil is moved to the second phase of refining, commonly known as neutralization. Here the free fatty acids are removed from the crude oil. An alkali solution, usually sodium hydroxide or sodium carbonate, is then mixed with the oil at a temperature of around 104 - 185ºF. This reacts with the free fatty acids to produce soaps. A by-product of caustic refining is a mixture of soap, water and oil known as soap stock. Lastly, the oil is heated in a vacuum dryer to ensure consistent water removal.
High performance measurement solutions are designed to improve process control, optimize product quality, and minimize energy usage throughout the refining process for edible oil production.
The Rosemount 3144P Temperature Transmitter provides industry-leading accuracy, stability and reliability for your temperature measurements. It features a dual-compartment housing to ensure reliability and advanced diagnostics to keep your measurement point up and running. When combined with Rosemount X-well ™Technology and the Rosemount 0085 Pipe Clamp sensor, this transmitter can provide accurate measurement of process temperature, eliminating the need for a thermowell or process penetration.