Novel method for removing indole in oil product through ionic liquid
A technology of ionic liquid and new method, applied in the direction of refining with acid-containing liquid, etc., can solve the problems of unreusable catalyst, large waste water discharge, large consumption, etc., to overcome the problem of unreusable, reduce production cost, and simple reaction conditions easy effect
Inactive Publication Date: 2015-03-11
QINGDAO UNIV OF SCI & TECH
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to provide a new method for removing indole in simulated oil products, so as to overcome the traditional non-hydrogenation acid refining method that consumes a large amount of inorganic acid, the catalyst cannot be reused, the equipment is corroded and the discharge of waste water is large, etc. shortcoming
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 1
[0020] Example 1: Take 10g of indole-containing simulated oil (N%=150ppm) into the reaction flask and add 10mmol(C 2 H 5 ) 3 N(CH 2 ) 3 SO 3 HHSO 4 , 1.6g of deionized water, stirred for 2h at 40°C, after the completion of the reaction, after the reaction solution settled for 24h, the upper oil product was taken to measure the nitrogen content, and the nitrogen removal rate was 98.70%.
Embodiment 2
[0021] Example 2: The experimental conditions and steps are the same as in Example 1, except that the ionic liquid is changed to (C 2 H 5 ) 3 N(CH 2 ) 3 SO 3 HCF 3 SO 3 , The nitrogen removal rate is 98.68%.
Embodiment 3
[0022] Example 3: The experimental conditions and steps are the same as in Example 1, except that the ionic liquid is changed to (C 2 H 5 ) 3 N(CH 2 ) 3 SO 3 HCH 3 SO 3 , The denitrification rate is 96.17%.
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 belongs to the field of petrochemical engineering, and relates to a novel method for removing non-alkaline nitrogen-indole in an oil product through ionic liquid. The novel method is characterized in that SO3H-containing functionalized acidic ionic liquid is used as a catalyst and a solvent, and the operation can be carried out at lower temperature (20 to 70 DEG C); and after the reaction, the recovered ionic liquid can be reused by being simply treated. Compared with the conventional method, the novel method provided by the invention has following characteristics that (1) the conventional strong acid nitrogen removal and hydrogenation nitrogen removal in the background technology are not needed, so that the problems due to the corrosion of the equipment, the wastewater drainage, and the high price of equipment, can be greatly reduced; (2) the adopted ionic liquid is the water-soluble ionic liquid which can be layered well respect to a simulated oil product after being dissolved by water in a certain proportion, and thus the convenience is provided for the separation after the nitrogen removal treatment; and (3) the implemented liquid nitrogen removal method is mild in condition, the operation is simple and easy to carry out, the ionic liquid can be reused, and the problem in the background technology that the catalyst cannot be recycled can be avoided.
Description
Technical field [0001] The invention belongs to the field of petrochemical industry, and relates to a new method for removing indole, which is non-basic nitrogen, from oil by using ionic liquid as a catalyst and solvent. technical background [0002] The presence of nitrides in the oil will not only affect the color and stability of the oil; after combustion, it will produce nitrogen oxides NO X In the form of discharge into the atmosphere, causing serious air pollution; it will also have a great impact on the reduction of the sulfur content of gasoline and diesel. In the production of oil products, a very small amount of organic nitrogen compounds can cause poisoning of precious catalysts in processes such as catalytic cracking and hydrofining, shortening the service life of the catalyst, thereby increasing production costs and reducing output. According to statistics, the nitrogen content in crude oil is reduced by 90%, and the output of gasoline can be increased by 20%. Studi...
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 Patent Type & Authority Patents(China)
IPC IPC(8): C10G17/02
Inventor 于世涛王辉解从霞刘福胜李露刘仕伟
Owner QINGDAO UNIV OF SCI & TECH