Liquefied gas desulfurizing and refining method
A technology for liquefied gas and oxidative sweetening of mercaptans, which is applied in the direction of gas fuel, petroleum industry, fuel, etc., can solve the problems of excessive total sulfur content of liquefied gas, high catalyst cost, easy aggregation and deactivation, etc., and achieve good industrial application prospects, desulfurization The agent is simple and easy to obtain, and the effect of desulfurization is good
Inactive Publication Date: 2006-05-24
BEIJING BIOTECHINA ENVIRONMENT CORP
View PDF0 Cites 20 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0007] 1) Cobalt phthalocyanine catalysts are easily aggregated and deactivated in the alkali phase, resulting in frequent replacement of catalysts, high catalyst costs, and at the same time affecting production to a certain extent. Moreover, during the production process, it is easy to cause liquefied gas loss accidents, resulting in production insecurity
[0008] 2) Liquefied petroleum gas is extracted with lye containing catalyst for mercaptan. In the presence of catalyst, sodium mercaptide is easy to generate disulfide and is brought into the refined liquefied gas product, causing the total sulfur content o
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment
[0046] project
[0047] It can be seen from the above data that the desulfurization and refining effect of liquefied petroleum gas by using desulfurizer is very obvious. to H 2 The effect of S coming out is very good, after taking off H 2 The S content is only 20ug / g, and the removal rate is over 95%. At the same time, it also has a certain function of removing mercaptan and total sulfur, and the removal rate of mercaptan and total sulfur is about 80%.
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
Login to view more
Abstract
The invention relates to a method of liquefied gas refining desulfurization that includes the following steps: putting the liquefied gas need to refining into pre-desulfurization tower to take desulfurization reaction; filtering in the sand tower after separating in separating tower; adding desulfurization agent into oxidizing regeneration tower to take oxidizing regeneration and could periodic duty after being separated. If the liquefied gas does not meet the request, it could take further oxidation sweetening mellow with sulfonation lush coblt activator, alkaline liquor and air, then separating, filtering to gain refined product. The invention has good desulfurization effect, low cost, simple device and has no secondary pollution.
Description
technical field [0001] The invention relates to a method for refining liquefied gas by using a desulfurizer. It is an improvement on the refining method of liquefied gas in petrochemical production. It mainly realizes the refining of liquefied gas through the combination of pre-desulfurization refining and sweetening refining of liquefied gas by using a desulfurizer. Background technique [0002] The liquefied gas from catalytic cracking, delayed coking and other devices in the process of petroleum refining contains a large amount of sulfide, except for H 2 In addition to S, it also contains various forms of organic sulfur, such as CH 3 SH, C 2 h 5 SH, CH 3 SCH 3 , COS, etc., mainly CH 3 sh. Sulfides are harmful substances in oil products and have a strong odor. Their existence will not only lead to a decline in oil quality and seriously affect its performance, but also cause poisoning and deactivation of catalysts during processing; active sulfides such as elemental...
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
Login to view more
IPC IPC(8): C10L3/12
Inventor 李国文杜蓉
Owner BEIJING BIOTECHINA ENVIRONMENT CORP
Who we serve
- R&D Engineer
- R&D Manager
- IP Professional
Why Eureka
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Social media
Try Eureka
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap