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
CN1775924AInactive Publication Date: 2006-05-24BEIJING BIOTECHINA ENVIRONMENT CORP
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
BEIJING BIOTECHINA ENVIRONMENT CORP
Publication Date
2006-05-24
Estimated Expiration
Not applicable ยท inactive patent

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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.
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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

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