Improving Technology of Vacuum Distillation of Petroleum Products

The article reviews the main directions of development of vacuum units at oil refining plants. The indicators that are being subjected to updating because of growing quality requirements of the feedstock for production of fuel-lubricant materials are determined. Several types of vacuum creating system used at oil refineries and their merits and demerits are presented. The methods for separating wide vacuum distillates into narrower ones are analyzed. An improved fractionation scheme that ensures reliability of the process and less energy consumption is described.