Supercharge Your Innovation With Domain-Expert AI Agents!

A method for hydrodechlorination of ionic liquid alkylated oil

A technology for hydrodechlorination and alkylation of oil, which is applied in the directions of hydrotreating process, treatment of hydrocarbon oil, gasoline stabilization, etc., can solve the problems of unqualified products and substandard product quality, and achieves low maintenance cost and clever idea. , Improve the effect of HCl removal efficiency

Active Publication Date: 2021-02-05
CHINA PETROLEUM & CHEM CORP +1
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method can not only satisfy the chlorine content of the oil produced by alkylation to meet the requirements of the blending components of motor gasoline, but also improve the dechlorination efficiency, and at the same time solve the problem of substandard product quality caused by the initial stage of the hydrodechlorination unit, and effectively solve the problem of crossover The problem of unqualified products or shortened operation period of the device caused by internal leakage of line valves

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method for hydrodechlorination of ionic liquid alkylated oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0050] According to the scheme of the present invention, a new alkylation unit is built. After the alkylation reaction is completed, the ionic liquid is separated by the settling tank 6, and then the feed pump, the heat exchanger 7 and the hydrogen are fully mixed and dissolved in the SX type static mixer, and then enter the hydrodechlorination reactor 10. The reaction conditions For: reaction pressure 1.5MPa﹑liquid hour volume space velocity 3.8h -1 , The reaction temperature is 143°C. After the reaction is over, it enters the first adsorption dechlorination device 11 to absorb and remove inorganic chlorides. The first adsorption dechlorination device 11 can be filled with a conventional industrial dechlorination agent, and its main component includes calcium oxide. The adsorption temperature of the adsorption dechlorination device is 142°C, and the adsorption pressure is 1.4MPa. Then the adsorbed and dechlorinated product enters the rectification tower 13 for rectificatio...

Embodiment 2

[0055] According to the scheme of the present invention, a new alkylation unit is built. After the alkylation reaction is completed, the ionic liquid is separated by the settling tank, and then the feed pump, the heat exchanger and the hydrogen are fully mixed and dissolved in the SX static mixer, and then enter the hydrodechlorination reactor. The reaction conditions are: reaction Pressure 1.6MPa﹑Liquid hour volume space velocity 4.2h -1, The reaction temperature is 157°C. After the reaction is finished, it enters the first adsorption dechlorination device 11 to adsorb and remove inorganic chlorides. The first adsorption dechlorination device 11 can be filled with a conventional industrial dechlorination agent, and its main components include magnesium oxide and the like. The adsorption temperature of the adsorption dechlorination device is 156°C, and the adsorption pressure is 1.5 MPa. Then the adsorbed and dechlorinated product enters the rectification tower 13 for recti...

Embodiment 3

[0064] During the test operation, open the second valve 16 and the third valve 17 on the cross-line, and keep the second valve 16 and the third valve 17 at a small opening to simulate the internal leakage of the valve. (the first valve 15 is not opened), the chlorine content of the dechlorinated alkylate oil is greater than 10 ppm, but after the leak-proof pipeline is enabled (the first valve 15 is opened), the chlorine content of the dechlorinated alkylate oil is stable, as low as 1.0 ppm.

[0065] After calculation, under certain working conditions, when the catalyst performance is good (the product index is far lower than the control index), if there is 1.7wt% internal leakage, the chlorine content of the alkylate after dechlorination is greater than 10 ppm; In the later stage of use (the chlorine content of the alkylated oil after dechlorination is close to the quality index), if there is a slight internal leakage, the chlorine content of the product will not meet the stan...

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

PropertyMeasurementUnit
adsorption temperatureaaaaaaaaaa
pressureaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for hydrodechlorination of ionic liquid alkylated oil. The method comprises: after the alkylation reaction is finished, the ionic liquid catalyst is separated, and the alkylation mixed product is subjected to hydrodechlorination and adsorption dechlorination before entering the rectification tower, and a cross-line is set for hydrodechlorination reaction, When the adsorption dechlorination device is isolated from the alkylation system, the alkylation mixed product is directly introduced into the rectification tower; a leak-proof pipeline is set, one end of the leak-proof pipeline is connected to the cross-over line, and the other end is connected to the outlet pipeline of the isobutane raw material delivery pump . The method of the invention can not only meet the requirements of the chlorine content of the oil produced by alkylation to meet the requirements of the blending components of motor gasoline, but also improve the dechlorination efficiency, and at the same time solve the problem that the product quality is not up to standard caused by the initial stage of the hydrodechlorination device, and effectively Solve the problem of unqualified products or shortened operation period of the device caused by internal leakage of cross-line valves.

Description

technical field [0001] The invention relates to a method for hydrodechlorination of alkylated oil, specifically dechlorination of alkylated oil with high chlorine content through hydrogenation and dechlorination treatment, especially suitable for ionic liquid alkylation process produced oil. Background technique [0002] Alkylate oil is a common high-octane gasoline blending component. It has the characteristics of high octane number, good anti-knock performance, low vapor pressure, low sulfur content, and no olefins and aromatics. It is an ideal clean gasoline blending combined components. Alkylates are generally produced by reacting isobutane with olefins over an acid catalyst. There are many types of alkylation technologies, which can be divided into two categories: liquid acid alkylation and solid acid alkylation according to the phase state of the catalyst. Liquid acid alkylation technology includes hydrofluoric acid, sulfuric acid and ionic acid; solid acid is mainl...

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): C10G67/14C10G45/04C10G7/02
CPCC10G7/02C10G45/04C10G67/14C10G2300/201C10G2300/4006C10G2300/70
Inventor 徐大海丁贺牛世坤李扬陈光李士才陈琳
Owner CHINA PETROLEUM & CHEM CORP
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com