Distillation tower for improving yield of petroleum hydrocarbon distillate and feeding method thereof

US10544372B2 · kind B2 · utility

Assignees

• RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC · CN
• CHINA PETROLEUM & CHEMICAL CORPORATION · CN

Inventors

• Zhanzhu Zhang · Beijing, CN
• Junyi Mao · Beijing, CN
• Shuandi Hou · Beijing, CN
• Ya Qin · Beijing, CN
• Qing Qing Yuan · Beijing, CN
• Kejia Xu · Beijing, CN
• Tongwang Zhang · Beijing, CN
• Shaobing Wang · Beijing, CN
• Hongliang Qu · Beijing, CN
• Xiaojin Tang · Beijing, CN
• Zhenxing Zhu · Beijing, CN
• Tao Huang · Linglestown, US

Key dates

• Filing date: Apr 15, 2011
• Grant date: Jan 28, 2020
• Expiry date: Jun 20, 2032

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10G2400/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The present invention relates to a method for obtaining a fraction oil yield from petroleum hydrocarbons in a distillation column, wherein said distillation column comprises a fractionation stage, a vaporization section and a stripping stage from the top to the bottom of the distillation column. The method comprises preheating and sending a feedstock oil of petroleum hydrocarbons through a pressure-feeding system at a pressure of 100-1000 kPa higher than the vaporization section pressure of the distillation column, wherein said preheating is conducted in a heating furnace, wherein said heating furnace has an outlet pressure of 100-1000 kPa higher than the vaporization section absolute pressure, and an outlet temperature of 360-460° C.