The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 28, 2020
Filed:
Apr. 15, 2011
Zhanzhu Zhang, Beijing, CN;
Junyi Mao, Beijing, CN;
Shuandi Hou, Beijing, CN;
Ya Qin, Beijing, CN;
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, Beijing, CN;
Zhanzhu Zhang, Beijing, CN;
Junyi Mao, Beijing, CN;
Shuandi Hou, Beijing, CN;
Ya Qin, Beijing, CN;
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, Beijing, CN;
RESEARCH INSTITUTE OF PETROLEUM PROCESSING, SINOPEC, Beijing, CN;
CHINA PETROLEUM & CHEMICAL CORPORATION, Beijing, CN;
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.