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

Preparation method of catalytic cracking fuel gas sulfur transfer additive active component

An active component, catalytic cracking technology, applied in the field of flue gas desulfurization

Inactive Publication Date: 2013-01-16
BEIJING UNIV OF CHEM TECH
View PDF0 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The biggest drawback of these methods is that the sulfate formed after oxidative sulfur absorption needs to be reduced by hydrogen at 640~680°C

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
  • Preparation method of catalytic cracking fuel gas sulfur transfer additive active component
  • Preparation method of catalytic cracking fuel gas sulfur transfer additive active component
  • Preparation method of catalytic cracking fuel gas sulfur transfer additive active component

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] 1. Calcining magnesium aluminum hydrotalcite with a magnesium aluminum molar ratio of 3 at 450°C for 3 hours;

[0024] 2. Weigh 3g of the roasted product in step 1, dissolve it in 30ml deionized water to make a slurry, add 0.66g Ce(NO 3 ) 3 ·6H 2 O, heated to 100°C under stirring, kept at a constant temperature for 2 hours, filtered and washed until the pH value was neutral, and then dried to obtain the hydrotalcite-like precursor of the active component of the catalytic cracking flue gas sulfur transfer agent;

[0025] 3. After roasting at 800°C for 2 hours, the active component of catalytic cracking flue gas sulfur transfer agent can be obtained.

Embodiment 2

[0027] 1. Calcining magnesium aluminum hydrotalcite with a magnesium aluminum molar ratio of 2.2 at 450°C for 3 hours;

[0028] 2. Weigh 3g of the roasted product in step 1, dissolve it in 50ml of deionized water to make a slurry, add 0.66g of Ce(NO 3 ) 3 ·6H 2 O, heated to 100°C under stirring, kept at a constant temperature for 2 hours, filtered and washed until the pH value was neutral, and then dried to obtain the hydrotalcite-like precursor of the active component of the catalytic cracking flue gas sulfur transfer agent;

[0029] 3. Roast at 800°C for 2 hours to obtain the active component of catalytic cracking flue gas sulfur transfer agent.

Embodiment 3

[0031] 1. Calcining magnesium aluminum hydrotalcite with a magnesium aluminum molar ratio of 4 at 450°C for 3 hours;

[0032]2. Weigh 3g of the roasted product in step 1, dissolve it in 30ml deionized water to make a slurry, add 0.66g Ce(NO 3 ) 3 ·6H 2 O, heated to 100°C under stirring, kept at a constant temperature for 2 hours, filtered and washed until the pH value was neutral, and then dried to obtain the hydrotalcite-like precursor of the active component of the catalytic cracking flue gas sulfur transfer agent;

[0033] 3. Roast at 800°C for 2 hours to obtain the active component of catalytic cracking flue gas sulfur transfer agent.

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 catalytic cracking fuel gas sulfur transfer additive active component belonging to the technical field of flue gas desulfurization in oil refining industry. The preparation method of the catalytic cracking fuel gas sulfur transfer additive active component comprises the following steps of: preparing a cerium-loaded magnesia-alumina houghite precursor by adopting a calcine-recovering method; and then, obtaining the catalytic cracking fuel gas sulfur transfer additive active component by high-temperature calcinations. The catalytic cracking fuel gas sulfur transfer additive active component is applied to reducing the discharge of SOx pollutants of regeneration flue gas in a catalytic cracking process. The prepared catalytic cracking fuel gas sulfur transfer additive active component can be reduced at lower temperature after oxidative adsorption SOx even without introducing transition metal elements of V, Fe, Co, Cr, Cu, and the like, thereby releasing H2S to achieve a regeneration purpose.

Description

technical field [0001] The invention belongs to the technical field of flue gas desulfurization in the oil refining industry, and in particular relates to an active component of a catalytic cracking flue gas sulfur transfer agent and a preparation method thereof through roasting and recovery. Background technique [0002] Fluid Catalytic Cracking (FCC) is the most important secondary processing method in the oil refining industry, and is an important source of high-value light oil products such as gasoline and diesel. The FCC process usually consists of a riser reactor and a regenerator. In the riser reactor, the heavy raw oil is contacted with the catalytic cracking catalyst for high-temperature catalytic cracking to generate light oil and gas products. At the same time, a part of the sulfur in the raw oil is deposited on the catalyst along with the coke. Then the coke-containing catalyst goes through the stripping section to remove oil and gas, and then enters the regener...

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): B01D53/82B01D53/50C10G11/00
Inventor 江磊段雪宋家庆林彦军卫敏徐向宇吕志
Owner BEIJING UNIV OF CHEM TECH
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