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Higher hydrocarbon steam conversion upper-section catalyst and preparation method thereof

A catalyst, advanced hydrocarbon technology, applied in catalyst activation/preparation, carbon compound catalysts, catalysts, etc., can solve the problems of environmental hazards, low waste consumption, and high processing costs, reducing preparation costs, relieving huge pressure, and simplifying production. The effect of the process steps

Active Publication Date: 2019-02-26
CHINA PETROLEUM & CHEM CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these processing methods have the following disadvantages: 1. High processing cost; 2. Less waste consumption
Landfilling is the most cost-effective way of disposal, but it will bring great harm to the environment

Method used

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  • Higher hydrocarbon steam conversion upper-section catalyst and preparation method thereof
  • Higher hydrocarbon steam conversion upper-section catalyst and preparation method thereof
  • Higher hydrocarbon steam conversion upper-section catalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Mix 1163g of nickel nitrate, 205g of magnesium nitrate, and 17.4g of cerium nitrate to prepare a 2L solution. Dissolve 616g of sodium carbonate in water to form a 4L solution. The temperature of the nickel-magnesium-cerium solution was raised to 85° C., the stirring speed was 60 r / min, and the sodium carbonate solution was slowly dropped into it, and the titration time was controlled to be 30 minutes. After the titration, continue to stir for 30 minutes, turn off the stirring, and maintain 85°C for aging for 4 hours. After completing the above operations, wash and filter the precipitate to remove Na in the precipitate + and NO 3- , baked at 380°C for 4 hours after drying.

[0041] Mix 1045g of nickel nitrate, 1898g of calcium nitrate and 17.4g of cerium nitrate to prepare a 4L solution. Dissolve 1562g of sodium carbonate in water to form an 8L solution. The temperature of the nickel-magnesium-cerium solution was raised to 80° C., the stirring speed was 60 r / min, an...

Embodiment 2

[0045] Mix 1018g of nickel nitrate, 1019g of magnesium nitrate and 9.18g of cerium nitrate to prepare a 3L solution. Dissolve 953g of sodium carbonate in water to form a 6L solution. The temperature of the nickel-magnesium-cerium solution was raised to 85° C., the stirring speed was 60 r / min, and the sodium carbonate solution was slowly dropped into it, and the titration time was controlled to be 30 minutes. After the titration, continue to stir for 30 minutes, turn off the stirring, and maintain 85°C for aging for 4 hours. After completing the above operations, wash and filter the precipitate to remove Na in the precipitate + and NO 3- , and baked at 650°C for 2 hours after drying.

[0046] Mix 1047g of nickel nitrate, 2361g of calcium nitrate and 17.4g of cerium nitrate to prepare a 5L solution. Dissolve 1732g of sodium carbonate in water to form a 10L solution. The temperature of the nickel-magnesium-cerium solution was raised to 80° C., the stirring speed was 60 r / min...

Embodiment 3

[0050] Mix 1977g of nickel nitrate, 1230g of magnesium nitrate, and 51.9g of cerium nitrate to prepare a 4L solution. Dissolve 1500g of sodium carbonate in water to form a 10L solution. The temperature of the nickel-magnesium-cerium solution was raised to 75° C., the stirring speed was 100 r / min, and the sodium carbonate solution was slowly dropped into it, and the titration time was controlled to be 60 minutes. After the titration, continue to stir for 60 minutes, turn off the stirring, and keep aging at 75°C for 2 hours. After completing the above operations, wash and filter the precipitate to remove Na in the precipitate + and NO 3- , and baked at 420°C for 6 hours after drying.

[0051] Mix 1744g of nickel nitrate, 1794g of calcium nitrate, and 34.6g of cerium nitrate to prepare a 4L solution. Dissolve 1740g of sodium carbonate in water to form a 9L solution. The temperature of the nickel-magnesium-cerium solution was raised to 85° C., the stirring speed was 100 r / min...

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Abstract

The invention belongs to the technical field of petrochemical industry, and particularly relates to a higher hydrocarbon steam conversion upper-section catalyst and a preparation method thereof. According to the higher hydrocarbon steam conversion upper-section catalyst, a nickel-magnesium-cerium semi-finished product and a nickel-calcium-cerium semi-finished product are respectively prepared by using a stepwise precipitation method; a FCC catalyst waste agent is pre-treated; the pre-treated FCC catalyst waste agent is mixed with the nickel-magnesium-cerium semi-finished product, the nickel-calcium-cerium semi-finished product, graphite and a potassium salt; and molding and calcination are performed to obtain the finished catalyst. According to the present invention, by using the FCC wasteagent as the part of the raw material, the prepared catalyst has advantages of good low-temperature reducing performance and good anti-carbon property, can be adapted to higher hydrocarbons with a dry point of 180-210 DEG C as a conversion raw material, and further has good activity and good stability; and the method is simple and easy to achieve.

Description

technical field [0001] The invention belongs to the technical field of petrochemical industry, and in particular relates to a high-level hydrocarbon steam reforming upper-stage catalyst and a preparation method. Background technique [0002] Hydrocarbon steam reforming is currently a hydrogen production method commonly used by refining and chemical enterprises at home and abroad. [0003] Foreign countries generally use relatively cheap gaseous hydrocarbons such as natural gas as raw materials for hydrogen production to reduce the cost of hydrogen. However, for most domestic oil refining and chemical enterprises that lack natural gas resources, LPG, propane, and higher hydrocarbons are still used as raw materials for hydrogen production. CN 1036914 A provides a light oil steam reforming hydrogen production catalyst and its preparation method. The preparation process of the catalyst is complicated, and the bulk density of the finished catalyst is high (1.05-1.2kg / L), which l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/83B01J37/03B01J37/08C01B3/32C07C4/06C07C9/04
CPCC01B3/326C07C4/06B01J23/002B01J23/83B01J37/031B01J37/082C07C2523/83B01J2523/00B01J2523/13B01J2523/22B01J2523/23B01J2523/31B01J2523/3712B01J2523/847C07C9/04
Inventor 王昊白志敏何宗华薛红霞姜建波齐焕东宋晓军赵沁
Owner CHINA PETROLEUM & CHEM CORP
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