Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for selective hydrodesulfurization of gasoline

A gasoline hydrogenation and hydrodesulfurization technology, applied in hydrotreating process, petroleum industry, treatment of hydrocarbon oil, etc., can solve problems such as loss of octane number of products, and achieve good hydrodesulfurization selectivity and hydrodesulfurization activity. improved effect

Active Publication Date: 2014-05-28
CHINA PETROLEUM & CHEM CORP +1
View PDF11 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, using traditional catalysts and processes, while hydrodesulfurization is being performed, the substantial hydrogenation saturation of olefins will cause a large loss in the octane number of the product

Method used

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
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Using the same catalyst and reactor as those in Comparative Example 1, hydrodesulfurization was carried out on raw oil C. Raw oil C is a mixture of raw oil A and heavy distillate B (Fischer-Tropsch synthetic oil), and the content of B in the mixture is 30% by volume. The properties of raw oil are shown in Table 3, and the reaction conditions are shown in Table 4. The reaction product was stripped and distilled to obtain gasoline distillate product and heavy distillate B. The properties of the products are listed in Table 4.

Embodiment 2

[0033]Using the same catalyst and reactor as those in Comparative Example 1, hydrodesulfurization was carried out on feedstock oil E. The raw material oil E is a mixture of the raw material oil A and heavy distillate D (white oil), and the content of D in the mixture is 30% by volume. The properties of raw oil are shown in Table 3, and the reaction conditions are shown in Table 4. The reaction product was stripped and distilled to obtain gasoline distillate product and heavy distillate D. The properties of the products are listed in Table 4.

Embodiment 3

[0035] Using the same catalyst and reactor as those in Comparative Example 1, the raw material oil I was subjected to hydrodesulfurization. The feedstock I is a mixture of feedstock A and heavy distillate H (PAO8), and the content of H in the mixture is 20% by volume. The properties of raw oil are shown in Table 3, and the reaction conditions are shown in Table 4. The reaction product was stripped and distilled to obtain gasoline distillate product and heavy distillate H. The properties of the products are listed in Table 4.

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

PUM

No PUM Login to View More

Abstract

The invention discloses a method for selective hydrodesulfurization of gasoline. The method comprises that a gasoline distillate oil raw material contacts with a catalyst under gasoline hydrodesulfurization reaction conditions. The method is characterized in that in the contact between the gasoline distillate oil raw material contacts and the catalyst, heavy distillate oil is adopted, wherein an initial boiling point of the heavy distillate oil is higher than an end initial boiling point of the gasoline distillate oil raw material; and based on a liquid hourly space velocity, an addition amount of the heavy distillate oil is in a range of 0.2 to 2h<-1>. Compared with the prior art, the method obviously improves gasoline hydrodesulfurization activity and has good hydrodesulfurization selectivity.

Description

technical field [0001] The invention relates to a hydrodesulfurization method, in particular to a method for selective hydrodesulfurization of gasoline. Background technique [0002] Air pollution is a serious environmental problem, and a large amount of engine emissions is one of the important causes of air pollution. In recent years, in order to protect the environment, countries around the world have put forward stricter restrictions on the composition of engine fuel in order to reduce the emission of harmful substances. [0003] At present, 90% to 99% of the sulfur in my country's finished gasoline comes from FCC gasoline. Therefore, reducing the sulfur content of FCC gasoline is the key to reducing the sulfur content of finished gasoline. [0004] To reduce the sulfur content of FCC gasoline, there are usually two technical solutions: hydropretreatment of FCC feedstock (pre-hydrogenation) or hydrodesulfurization of FCC gasoline (post-hydrogenation). Among them, the pr...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10G67/02C10G45/02
Inventor 李明丰褚阳李会峰聂红朱玫张润强
Owner CHINA PETROLEUM & CHEM CORP