A preparing method of a rare earth catalytic cracking double-metal deactivator

A catalytic cracking, rare earth element technology

Inactive Publication Date: 2014-09-10
JIANGSU JIAHUA ADVANCED MATERIALS TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

The metal deactivators in the traditional technology have the following disadvantages: (1) The main metal elements polluting the catalyst are iron and nickel, and the traditional targeted single metal deactivator cannot satisfy the pollution of the catalyst by various metal elements in crude oil
[0003] (2) The stability of traditional metal passivators is short, and the general storage period is 3 to 6 months. During long-term storage and use, a large amount of precipitation will occur, which will seriously even block the pipeline
[0004] (3) Traditional metal passivators are mostly acidic substances, with a pH of about 2 to 4 (high pH affects product stabilit

Method used

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  • A preparing method of a rare earth catalytic cracking double-metal deactivator
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  • A preparing method of a rare earth catalytic cracking double-metal deactivator

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Example

[0036] (Example 1)

[0037] see Figure 1 to Figure 3 , A method for preparing rare earth element catalytic cracking bimetal passivator, the specific steps are:

[0038] A. Mix 300~600kg mother liquor A, 50~150kg mother liquor B and pH adjuster 5~20kg;

[0039] B. 30 to 80 kg of non-ionized water, stirring for 30 to 60 minutes to discharge.

[0040] The preparation steps of mother liquor A are:

[0041] a. Add 6-20kg of pH adjuster, 10-35kg of organic acid, and 20-80kg of organic amine into a 500kg reaction flask, and stir for 10min;

[0042] b. Add 80~120kg of antimony powder, and the temperature will continue to rise by 80~100℃, add 100~170kg of oxidant dropwise;

[0043] c. Condensation and reflux for 1-2h,

[0044] d. Add 15~35kg of stabilizer, stir and cool to room temperature, and discharge to obtain mother liquor A.

[0045] The preparation steps of mother liquor B are:

[0046] a. Add 100~150kg of rare earth powder, 100~140kg of organic acid, and 100~200kg of non-ionized water int...

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Abstract

The invention relates to a preparing method of a rare earth catalytic cracking double-metal deactivator. The method includes steps of: A) mixing 300-600 kg of a mother liquor A, 50-150 kg of a mother liquor B and 5-20 kg of a pH conditioner and stirring; and B) adding 30-80 kg of deionized water, stirring for 30-60 min and discharging. The catalytic cracking double-metal deactivator with wide suitability is developed, thus effectively solving a suitability problem of deactivators.

Description

technical field [0001] The invention relates to a preparation method of a rare earth element catalytic cracking double metal passivator. Background technique [0002] Due to the large amount of crude oil imported in my country now, the quality of crude oil is different. The metal deactivators in the traditional technology have the following disadvantages: (1) The main metal elements polluting the catalyst are iron and nickel, and the traditional targeted single metal deactivator cannot satisfy the pollution of the catalyst by various metal elements in crude oil. [0003] (2) The stability of traditional metal passivators is short, and the general storage period is 3 to 6 months. During long-term storage and use, a large amount of precipitation will occur, which will seriously even block the pipeline. [0004] (3) Traditional metal passivators are mostly acidic substances, with a pH of about 2 to 4 (high pH affects product stability). Contact with iron pipes or containers d...

Claims

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Application Information

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IPC IPC(8): B01J33/00
Inventor 蒋明仲燕王凯
Owner JIANGSU JIAHUA ADVANCED MATERIALS TECH
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