Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Method for producing ultra-low-sulfur diesel in long period

An ultra-low-sulfur diesel, long-cycle technology, applied in chemical instruments and methods, hydrocarbon oil treatment, petroleum industry, etc., can solve the problems of short catalyst life, low space velocity, harsh operating conditions, etc., to improve the metal dispersion. , Improve the service life and prevent the effect of aggregation

Active Publication Date: 2017-12-08
CHINA PETROLEUM & CHEM CORP +1
View PDF7 Cites 13 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for producing ultra-low sulfur diesel oil on the basis of the prior art. What needs to be solved is that when the prior art produces ultra-low sulfur clean diesel oil, the operating conditions are harsh, the space velocity is low, and the service life of the catalyst is short. And other issues

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
  • Method for producing ultra-low-sulfur diesel in long period
  • Method for producing ultra-low-sulfur diesel in long period
  • Method for producing ultra-low-sulfur diesel in long period

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Weigh 54 grams of molybdenum trioxide, 19 grams of basic cobalt carbonate, 20 grams of phosphoric acid, and 20 grams of citric acid into 140 grams of deionized water, heat and stir to dissolve to obtain a clear impregnation solution, and use the saturated impregnation method to impregnate 200 grams of the above solution. Alumina carrier, impregnated for 2 hours, then dried at 120°C for 2 hours, then calcined under the condition of air flow, the calcined temperature was 400°C, the time was 2 hours, and the air-to-particle ratio was 2 liters / (gram hour), obtain semi-finished catalyst Z-S1, the carbon content of Z-S1 is shown in Table 2; 5 gram ethanols are added in 150 gram deionized water, stir to obtain clarification solution, adopt saturated impregnation method to impregnate Z- S1, impregnated for 2 hours, and then dried at 110° C. for 3 hours to obtain catalyst S1. Based on the total amount of S1 and in terms of oxides, the content of hydrogenation metal active compo...

Embodiment 2

[0060] Weigh 54 grams of molybdenum trioxide, 21 grams of basic nickel carbonate, 13 grams of phosphoric acid, and 30 grams of citric acid into 140 grams of deionized water, heat and stir to dissolve to obtain a clear impregnation solution, and impregnate 200 grams of the above solution with saturated impregnation method. The zirconia carrier is impregnated for 2 hours, then dried at 150°C for 2 hours, and then calcined under the condition of flowing air, the calcining temperature is 360°C, the time is 3 hours, and the air-to-powder ratio is 10 liters / (gram hour), obtain the semi-finished catalyst Z-S2, the carbon content of Z-S2 is shown in Table 2; 30 grams of citric acid are added in 150 grams of deionized water, stir to obtain a clear solution, adopt the saturated impregnation method to impregnate Z with the above solution -S2, impregnation time is 2 hours, and then dried at 150° C. for 3 hours to obtain catalyst S2. Based on the total amount of S2 and in terms of oxides,...

Embodiment 3

[0062] Weigh 30 grams of nickel nitrate, 45 grams of ammonium metatungstate and 15 grams of oxalic acid into 140 grams of deionized water, stir and dissolve to obtain a clear solution, and use the saturated impregnation method to impregnate 200 grams of silica carrier with the above solution, and the impregnation time is 2 Hour, then, dry 2 hours at 120 DEG C, then it is roasted under the state that feeds air stream, and roasting temperature is 450 DEG C, and the time is 4 hours, and air agent ratio is 0.3 liters / (gram · hour), obtains Semi-finished catalyst Z-S3, the carbon content of Z-S3 is shown in Table 2; Put 10 grams of diethylene glycol into 150 grams of deionized water, stir to obtain a clear solution, adopt the saturated impregnation method to impregnate Z-S3 with the above solution, and the impregnation time is After 2 hours, it was dried at 120° C. for 6 hours to obtain catalyst S3. Based on the total amount of S3, in terms of oxides, the content of hydrogenation m...

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 producing ultra-low-sulfur diesel in a long period. The method comprises the following steps: enabling a diesel raw material and hydrogen to contact a hydrofining catalyst I in a first reaction zone to implement a reaction, feeding a reaction effluent of the first reaction zone into a second reaction zone without separation, contacting a hydrofining catalyst II to implement a reaction, cooling an effluent of the second reaction zone, separating, and distilling, thereby obtaining a diesel product, wherein the content of sulfur of a liquid-phase effluent in the reaction effluent of the first reaction zone is 20-200mu g / g, and the content of nitrogen is 0-50mu g / g. By adopting the method, not only is a diesel fraction with high sulfur converted into a diesel product of which the sulfur content is less than 10mu g / g, but also the operation period of a device is effectively prolonged.

Description

technical field [0001] The invention belongs to a method for treating hydrocarbon oil under the condition of hydrogen, more specifically, a method for producing ultra-low sulfur diesel oil in a long period. Background technique [0002] As people pay more and more attention to the quality of the ecological environment, the production of clean diesel has received more and more attention. In recent years, new fuel standards and environmental protection regulations in many countries in the world have set increasingly strict standards for vehicle diesel. For example, Europe implemented the S<500μg / g (European II) specification in 1996, and further reduced it to S<350μg / g (European III) in 2000. In January 2005, the sulfur content of vehicle diesel has been reduced to less than 50μg / g (European III). IV). In 2005, a more stringent Euro V standard for vehicle fuel was introduced to reduce the sulfur content of diesel to below 10 μg / g, and it was implemented in 2008. my co...

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
IPC IPC(8): C10G67/02B01J23/882B01J23/883B01J23/888
CPCB01J23/882B01J23/883B01J23/888B01J37/0203B01J37/024B01J37/086C10G67/02C10G2300/70
Inventor 葛泮珠李大东高晓冬聂红丁石张乐
Owner CHINA PETROLEUM & CHEM CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com