Deep gasoline desulfurization method

A technology for deep desulfurization and gasoline, applied in the field of desulfurization, can solve the problems of limited desulfurization depth and large loss of octane number, etc., and achieve the effects of mild process operating conditions, high sulfur capacity, and high desulfurization depth.
CN104673379AInactive Publication Date: 2015-06-03CHINA UNIV OF PETROLEUM (BEIJING)
7 Cites 5 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
CHINA UNIV OF PETROLEUM (BEIJING)
Publication Date
2015-06-03
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

The invention provides a deep gasoline desulfurization method which comprises the following steps of: carrying out mercaptan removing treatment on a gasoline raw material; cutting the gasoline raw material subjected to the mercaptan removing treatment into light, medium and heavy gasoline fractions; carrying out adsorption desulfurization on the medium gasoline fraction to obtain a desulfurized medium gasoline fraction; carrying out selective hydrodesulfurization on the heavy gasoline fraction to obtain a desulfurized heavy gasoline fraction; mixing the light gasoline fraction, the desulfurized medium gasoline fraction and the desulfurized heavy gasoline fraction to obtain desulfurized gasoline, wherein the cutting temperature of the light and medium gasoline fractions is 35-60 DEG C, and the cutting temperature of the medium and heavy gasoline fractions is 70-130 DEG C. The deep gasoline desulfurization method provided by the invention can not only realize the deep desulfurization of gasoline, but also has low octane value loss.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention relates to a desulfurization method, in particular to a gasoline deep desulfurization method. Background technique

[0002] With the increasingly stringent environmental regulations around the world, people have higher and higher requirements for the quality of gasoline products. For example, since January 1, 2014, my country has implemented the National IV emission standard for oil products nationwide, which requires the sulfur content of gasoline to be reduced to below 50ppm; at the same time, my country has also issued the National V quality standard, which requires the The sulfur content is reduced to below 10ppm, while the olefin content is controlled below 24%.

[0003] Compared with developed countries, the sulfur content in gasoline in my country is relatively high. The main reason is that about 70-80% of gasoline in my country comes from the catalytic cracking (FCC) process. Because about 90% of the olefin content and sulfur con...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More