Catalytic cracking CO combustion improver and preparation method thereof

A technology of catalytic cracking and combustion aids, which is applied in the direction of catalytic cracking, cracking, and petroleum industry, and can solve the problems of reducing flue gas, high prices of combustion aids, and unfavorable large-scale application

Inactive Publication Date: 2016-10-05
PETROCHINA CO LTD
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, platinum-based combustion accelerants will greatly promote NO x Therefore, the use of platinum agent not only reduces the CO content in the flue gas, but also significantly increases the NO x emissions
At the same time, since the content of Pt is about 0.5% to 1%, the price of the combustion aid is relatively high, which is not conducive to large-scale application

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
  • Catalytic cracking CO combustion improver and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Example 1 This example illustrates the catalyst CP-1 of the present invention and its preparation method.

[0044] The first step is to prepare carrier alumina. Add 4870g of boehmite, 805g of hydrochloric acid, and 3824g of aluminum sol in 10500g of deionized water. After being fully dispersed by a homogenizer, a slurry 1 with a solid content of 19.3wt% is obtained; granules, and calcined at 550°C for 6 hours to obtain microspherical alumina carrier A, the specific surface area measured by BET method is 192m 2 / g, and the water absorption rate is 0.60g / ml. The catalyst carriers prepared in the present invention are all carrier A prepared by this method.

[0045] In the second step, weigh Ce(NO 3 ) 3 Solution 61.2g, La(NO 3 ) 3 Solution 10.93g, citric acid 28.8g, then add a small amount of water to a volume of 114ml; then add carrier A 189g, let it stand for adsorption saturation, put it in an oven at 100°C for 4h, and roast it in air at 500°C for 6h to obtain the ...

Embodiment 2

[0046] Embodiment 2 This embodiment illustrates catalyst CP-2 of the present invention and preparation method thereof

[0047] The carrier A prepared in Example 1 was directly used as the catalyst carrier. Weigh Ce(NO 3 ) 3 Solution 61.2g, Nd(NO 3 ) 3 10.85g of solution, 28.8g of citric acid, and then add a small amount of water to make the volume 114ml; then add 189g of carrier A, let it stand for adsorption saturation, dry it in an oven at 120°C for 1h, and roast it in air at 650°C for 2h to get Catalyst CP-2.

Embodiment 3

[0048] Embodiment 3 This embodiment illustrates catalyst CP-3 of the present invention and its preparation method

[0049] The carrier A prepared in Example 1 was directly used as the catalyst carrier. Weigh Ce(NO 3 ) 3 Solution 61.2g, Sm(NO 3 ) 3 Solution 10.85g, citric acid 28.8g, then add a small amount of water to make the volume 114ml; then add carrier A 189g, let it stand for adsorption saturation, put it in an oven at 110°C for 2h, and roast it in air at 550°C for 4h to get the catalyst CP-3.

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
Specific surface areaaaaaaaaaaa
Water absorptionaaaaaaaaaa
Login to view more

Abstract

The invention relates to a catalytic cracking CO combustion improver. The catalytic cracking CO combustion improver comprises an active ingredient and carriers carrying the active ingredients. A loading ratio of the carrier with the active ingredient is in a range of 2-20wt%. The active ingredient is a non-noble metal inorganic oxide with a certain amount of oxygen ion defects. The invention provides a preparation method of the catalytic cracking CO combustion improver. The preparation method comprises a, utilizing a corresponding oxide of a metal salt as an active ingredient and mixing the metal salt and a certain amount of an organic acid to obtain a mixed solution, b, loading the carriers with the mixed solution, wherein the carriers are gamma-Al2O3 microspheres and c, drying and roasting the carrier with the active ingredient to obtain the CO combustion improver.

Description

technical field [0001] The invention relates to a non-precious metal catalyst used in a fluidized catalytic cracking unit, which can efficiently promote the regeneration of the spent agent and promote the combustion of CO. It is characterized in that the combustion aid is a supported catalyst, and the carrier is a microsphere γ -Al 2 o 3 filled, and the use of citrate complexation to load active component A x B 1-x o 2-δ , and obtained by drying and roasting. Background technique [0002] Fluid Catalytic Cracking (FCC) is a very important secondary processing method of crude oil at home and abroad, and it is also a major production method of gasoline and diesel in my country. In order to achieve rapid catalyst regeneration and energy recovery, the catalyst in the FCC unit needs to react and regenerate continuously. Therefore, during the regeneration process, most refineries at home and abroad use Pt-containing CO combustion aids to achieve efficient catalyst regeneratio...

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): B01J23/10C10G11/04
Inventor 李兆飞王骞刘其武郭成玉邢昕阎立军庞新梅李发永
Owner PETROCHINA CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap