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

A kind of catalytic cracking catalyst and its preparation method and application

A catalytic cracking and catalyst technology, applied in catalytic cracking, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problem of high coke selectivity, achieve high liquefied gas yield, low coke selectivity, increase catalytic cracking catalyst Effect of Pore Content

Active Publication Date: 2018-06-19
CHINA PETROLEUM & CHEM CORP +1
View PDF14 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to overcome the high defect of coke selectivity when adopting existing catalytic cracking catalyst to carry out heavy oil catalytic cracking, and to provide a kind of new one that has lower coke selectivity, higher cracking activity and can obtain higher Catalytic cracking catalyst with high liquefied gas yield, preparation method of said catalytic cracking catalyst and application of said catalytic cracking catalyst in heavy oil catalytic cracking

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 kind of catalytic cracking catalyst and its preparation method and application
  • A kind of catalytic cracking catalyst and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0023] In the preparation process of the above-mentioned modified aluminum sol, water can be introduced into the reactor through a soluble silicon-containing compound solution, through a chloride solution, through a soluble phosphorus-containing compound solution, by adding water such as deionized water, or through a combination of the above methods Water is introduced into the reactor, preferably, the weight ratio of the water introduced into the reactor before adding the chloride to the soluble silicon-containing compound (calculated as Si) introduced into the reactor before adding the chloride is 100:0.1-10 , such as 100:1-10 or 100:0.1-5 or 100:0.15-1.4 or 100:0.2-1.3:1.

[0024] The content of silicon (calculated as silicon element) in the modified aluminum sol obtained in the present invention is 0.1-1 wt%, preferably 0.2-0.9 wt%, for example 0.3-0.85 wt%.

[0025] In the preparation process of the above-mentioned modified aluminum sol, the amount of metal aluminum added...

preparation example

[0068] In the following preparation examples, comparative preparation examples, examples and comparative examples:

[0069]The purity of aluminum chips used is 99.2% by weight, and the purity of aluminum particles is 98.8% by weight; the 1:1 chemically pure hydrochloric acid used is a mixture of 1 volume concentration of 36% by weight chemically pure hydrochloric acid and 1 volume water; the 1:1 chemically pure phosphoric acid used It is a mixture of 1 volume of chemically pure phosphoric acid with a concentration of 85% by weight and 1 volume of water; the rare earth chloride is purchased from Baotou Steel Rare Earth High Technology Co., Ltd., and the rare earth elements are La and Ce.

[0070] The specific surface area, pore volume and average pore diameter were all measured by the low-temperature nitrogen adsorption-desorption method, and the instrument used was the physical and chemical adsorption instrument ASAP2400 of Micro meritics company in the United States; 2 O, Al ...

preparation example 1

[0075] This preparation example is used to illustrate the preparation method of the silicon-modified aluminum sol provided by the present invention.

[0076] 286 grams of aluminum chips (calculated as Al), 1481 grams of deionized water and 119 grams of water glass aqueous solution (containing 9.33% by weight of Si element and 4.63% by weight of Na element) were added into the three-necked flask and heated to 60°C. Slowly add 921 ml of 1:1 chemically pure hydrochloric acid into the three-necked flask to make it react with aluminum chips. The addition time of hydrochloric acid is 3 hours; The product was cooled to 60-70°C and filtered to obtain modified aluminum sol SA-1. The residual aluminum chips from the reaction were weighed to be 36 grams, that is, the aluminum excess was 14.8% by weight. After analyzing the modified aluminum sol SA-1, the results are as follows: Al content is 9.0% by weight, Cl content is 6.7% by weight, Si content is 0.41% by weight, Al / Cl (weight ratio...

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
pore sizeaaaaaaaaaa
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The invention discloses a catalyst for catalytic cracking, its preparation method and application. The catalytic cracking catalyst contains a cracking active component, a mesoporous silica-alumina material, clay and a binder, wherein the cracking active component contains 70-90% by weight of Y-type molecular sieve and 10-30% by weight of MFI structure Molecular sieve, the Y-type molecular sieve contains the first Y-type molecular sieve and the second Y-type molecular sieve; the binder is a modified aluminum sol containing Cl and Si, based on the total weight of the modified aluminum sol, Al The content is 8-13% by weight, the Cl content is 4-9% by weight, the Al / Cl weight ratio is 1.2-2.2:1, the Si content is 0.1-1% by weight, and the pH value of the modified aluminum sol is 2.2 -5.2. The catalytic cracking catalyst not only has lower coke selectivity and higher catalytic cracking activity in the process of catalytic cracking of heavy oil, but also can obtain higher yield of liquefied gas.

Description

technical field [0001] The invention relates to a catalytic cracking catalyst, a preparation method of the catalytic cracking catalyst and an application of the catalytic cracking catalyst in heavy oil catalytic cracking. Background technique [0002] Catalytic cracking (FCC) is an important secondary processing process of crude oil and occupies a pivotal position in the oil refining industry. In the catalytic cracking process, heavy fractions (such as vacuum distillate oil or residues of heavier components) react in the presence of catalysts and are converted into high value-added products such as liquefied gas, gasoline, and diesel oil. In this process, it usually requires Catalytic materials with high cracking activity are used. Microporous zeolite catalytic materials are widely used in petroleum refining and processing industries due to their excellent shape-selective catalytic performance and high cracking reactivity. At present, catalytic cracking catalysts mainly in...

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): B01J29/80C10G11/05
Inventor 严加松赵留周朱玉霞达志坚宋艾罗
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