Catalyst with cracking and gasifying function and preparation method thereof

A catalyst and oxide technology, applied in chemical instruments and methods, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of particle size distribution broadening, loss of activity, coking precursors Concentration increases and other problems to achieve the effect of increasing the rate

Active Publication Date: 2010-06-30
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Measures to increase liquid recovery include reducing the temperature of the coking reactor or reducing the residence time of raw materials to reduce excessive cracking. The existing problems are: the concentration of coking precursors in the coking reactor increases, covering the surface of the fluidized medium, and the particles interact with each other. Viscous, the particle size distribution of the particles in the system becomes wider, and the fluidization effect becomes worse
However, in a high-temperature hydrothermal environment above 800 °C, the molecular sieve framework will collapse quickly, and the activity will be permanently lost.
[0006] The amorphous silicon-alumina structure has a certain acidity, but the acidity is not as strong as that of molecular sieves

Method used

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  • Catalyst with cracking and gasifying function and preparation method thereof
  • Catalyst with cracking and gasifying function and preparation method thereof
  • Catalyst with cracking and gasifying function and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Weigh 4.5 kg of kaolin (Suzhou clay), of which 1.5 kg and 0.9 kg of potassium carbonate and calcium carbonate measured as oxides are mixed (all chemically pure reagents, provided by Beijing Chemical Reagent Company, potassium / calcium atomic ratio 0.1), add Beat 5.6 kg of deionized water for 10 minutes, add hydrochloric acid, adjust the pH of the slurry to 4, and stir for 30 minutes.

[0025] Mix the remaining 3 kg of kaolin with 4.3 kg of bauxite (produced by Shandong Aluminum Factory), add 20 kg of deionized water, stir for 20 minutes, add hydrochloric acid (chemically pure reagent, provided by Beijing Chemical Reagent Company), adjust the pH to 2.5, and stir for 10 Minutes, let stand for 30 minutes.

[0026] Mix the two slurries, add 3 kg of aluminum sol (produced by Qilu Catalyst Factory) while stirring, stir for 30 minutes, spray drying and shape, adjust the spray conditions to make the average particle size of 80μm. Firing at 550°C for 60 minutes, the sample number is ...

Embodiment 2～6

[0028] Repeat the steps of Example 1 and adjust the ratio of materials used to prepare catalyst samples numbered A2, A3, A4, A5, and A6 respectively. The composition and physical properties are shown in Table 1.

[0029] Table 1

[0030] Example number

[0031] Example number

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Abstract

The invention relates to a catalyst with cracking and gasifying function, on the basis of the weight of the catalyst, which comprises: 35-60 percent of pseudo-boehmite, 2-10 percent of alumina sol, 20-49.5 percent of kaolin, 5-30 percent of alkali metals and alkaline-earth metals (by oxide), wherein the atomic ratio of the alkali metals to the alkaline-earth metals is (0.05-0.9):1. The catalyst has the optimization effects on the hydrocarbon oil cracking products distribution and the gasification effective gas productivity.

Description

Technical field [0001] The invention relates to a catalyst for the cracking process of heavy and inferior petroleum hydrocarbons and the gasification of coke produced by cracking to produce hydrogen. More specifically, it uses catalytic cracking and thermal cracking processes to process heavy and inferior feedstock oils to produce a certain amount of light It is a catalyst that uses the coke produced to produce hydrogen or syngas to convert the excess carbon of heavy and inferior oil into products with higher added value. Background technique [0002] With the development trend of heavy and degraded crude oil worldwide and the increasingly stringent environmental protection regulations, hydrogenation has become one of the countermeasures. However, the current hydrogen production method has a relatively high production cost, and the output is difficult to meet the needs of hydrogenation. It is very important to develop cheap hydrogen production methods. [0003] At present, the ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/02B01J21/16C10G11/02
Inventor 吴治国王子军门秀杰汪燮卿
Owner CHINA PETROLEUM & CHEM CORP
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