Method for promoting light oil yield of atmospheric and vacuum distillation of petroleum oil

Abstract

The invention relates the method for improving atmospheric and vacuum distillation light oil productivity. The method comprises the following step: adding the 0.001-0.1wt% addition agent with colophony into crude oil in atmospheric and vacuum distillation tower. The addition agent comprises 50-80% colophony and 50-20% organic solvent. The pH is 7.0-7.5. The organic solvent comprises ethanol or cellosolve or ethyl propyl acetone or acetate cellosolve. The method can be used in oil-extraction plant, and the light oil productivity is improved by 1.5-2.3wt%.

Description

technical field

[0001] The invention relates to a method for increasing the yield of light oil in petroleum atmospheric and vacuum distillation, which is an improved technology in petroleum refining and can effectively increase the yield of lighter components in the petroleum atmospheric and vacuum distillation process. It belongs to the technical field of fuel and energy. Background technique

[0002] Oil will be exhausted in the first half of this century, so how to increase its distillate yield is becoming more and more important and urgent. Fuel oil processing is firstly to distill the crude oil in the regular vacuum tower to separate the light distillate gasoline, kerosene and diesel oil in the crude oil, and then put the heavy distillate and residual oil at the bottom of the tower into catalytic cracking and coking devices for secondary processing. Secondary processing converts it into a light oil. In short, it is necessary to do everything possible to take out as mu...