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Hydrocracking catalyst containing amorphous aluminum silicide and preparation thereof

An amorphous silicon-alumina, hydrocracking technology, applied in metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, molecular sieve catalysts, etc., can solve the problem of uneven pore distribution, pore volume, specific surface area Low problems, to achieve the effect of increasing effective components, supporting metal in large space and specific surface, and improving the uniformity of distribution

Active Publication Date: 2011-04-20
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] CN 1597093A introduces a kind of amorphous silicon aluminum prepared by carbonization method, intermittent production operation, SiO 2 The content is 8% to 50%, but the pore volume and specific surface area are relatively low, and the pore distribution is not concentrated, which needs further improvement

Method used

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  • Hydrocracking catalyst containing amorphous aluminum silicide and preparation thereof

Examples

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Comparison scheme
Effect test

example 1

[0034] Prepare 700 solid sodium aluminate to a concentration of 200gAl 2 o 3 / l concentrated sodium aluminate solution, then diluted to a concentration of 35gAl 2 o 3 / L sodium aluminate working solution (a), take SiO 2 28wt% sodium silicate solution, then diluted to a concentration of 150gSiO 2 / l sodium silicate working solution 2L (b). Take a 30L steel plastic tank, open the container valves containing (a) and (b) respectively, and ventilate and feed CO at a concentration of 45v% at the same time 2 Gas, set the flow rate of (a) and (b) so that the reaction time is 1 hour, and quickly adjust the CO 2 The flow rate is to keep the pH of the system at about 10.0, and the reaction temperature is 30°C. After the reaction of (a) and (b) is completed, stop feeding CO 2 , and then the ventilation was stable for 40 minutes, and the slurry was filtered and washed with 85°C deionized water until neutral. Dry at 120°C for 8 hours, pulverize and sieve to obtain amorphous silica-al...

example 2

[0036] Prepare 800 solid sodium aluminate to a concentration of 200gAl 2 o 3 / l concentrated sodium aluminate solution, then diluted to a concentration of 40gAl 2 o 3 / L sodium aluminate working solution (a), take SiO 2 28wt% sodium silicate solution, then diluted to a concentration of 200gSiO 2 / l sodium silicate working solution 1L (b). Take a 30L steel plastic tank, open the container valves containing (a) and (b) respectively, and simultaneously ventilate and feed CO with a concentration of 50v% 2 Gas, set the flow rate of (a) and (b) so that the reaction time is 50 minutes, and quickly adjust the CO 2 The flow rate is to keep the pH of the system at about 10.5, and the reaction temperature is 35°C. After the reaction of (a) and (b) is completed, stop feeding CO 2 , and then the air was stabilized for 40 minutes, and the slurry was filtered and washed with 80°C deionized water until neutral. Dry at 120°C for 8 hours, pulverize and sieve to obtain amorphous silica-al...

example 3

[0038] Prepare 600 solid sodium aluminate to a concentration of 200gAl 2 o 3 / l concentrated sodium aluminate solution, then diluted to a concentration of 30gAl 2 o 3 / L sodium aluminate working solution (a), take SiO 2 28wt% sodium silicate solution, then diluted to a concentration of 100gSiO 2 / l sodium silicate working solution 4L (b). Take a 30L steel plastic tank, open the container valves containing (a) and (b) respectively, and simultaneously ventilate and feed CO with a concentration of 50v% 2 Gas, set the flow rate of (a) and (b) so that the reaction time is 70 minutes, and quickly adjust the CO 2 The flow rate is to keep the pH of the system at about 9.5, and the reaction temperature is 40°C. After the reaction of (a) and (b) is completed, stop feeding CO 2 , and then the ventilation was stable for 1 hour, and the slurry was filtered and washed with 85°C deionized water until neutral. Dry at 120°C for 8 hours, pulverize and sieve to obtain amorphous silica-alu...

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Abstract

The present invention provides a hydrocracking catalyst containing amorphous silica-alumina and preparing method. The amorphous silica-alumina in the catalyst employs parallel current coexisting method, not only has a simple process, easily controlling, but also employs CO2 and wind mixing, the reactant is adequately mixed, silica and alumina are effectively mutual action, a large specific surface area and a large specific pore volume are formed, pore distribution is very concentrative, 4-10nm pore volume is about 85%-95% of the total pore volume, pore volume which aperture is bigger than 15nm, is below 5% of the total pore volume. The amorphous silica-alumina provides enough channel to the reactant, benefits for enter and exit of reactant and resultant, greatly enhances effectively element of carrier, enhances the homogeneity of the acid center distributing on the channel, in addition, the invention provides larger space and specific surface to carry metal, the hydrogenation metal has high dispersivity, the catalyst not only has feasible schizolysis activity, but also has high hydrogenation activity and medium oil selectivity.

Description

technical field [0001] The invention relates to a hydrocracking catalyst and a preparation method thereof, in particular to a hydrocracking catalyst containing amorphous silicon-aluminum for processing heavy hydrocarbon raw materials and producing middle distillate oil. Background technique [0002] Since the beginning of the 21st century, the crude oil processed by the world's oil refineries has become significantly heavier, and the sulfur and heavy metal content in crude oil has increased significantly. The environmental protection regulations of governments in various countries have become increasingly stringent, and the demand for oil refiners to adopt clean production processes to produce clean fuels has increased. Clean production techniques must be adopted to make the most effective use of petroleum resources, reduce material consumption, energy consumption and pollutant emissions in the production process, and produce environmentally friendly petroleum products. As a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/85B01J29/80B01J29/08C10G47/20
Inventor 孙晓艳樊宏飞王战宇
Owner CHINA PETROLEUM & CHEM CORP