A water-soluble catalytic cracking multifunctional deactivator and a preparing method thereof

A metal passivator, catalytic cracking technology, applied in catalytic cracking, catalyst protection, chemical instruments and methods, etc., can solve the catalyst poisoning deactivation selectivity, gasoline and light oil yield reduction, hydrogen and coke yield increase and other problems, to achieve the effect of good dispersion, high activity and low toxicity

Inactive Publication Date: 2014-11-26
宜兴汉光高新石化有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of catalytic cracking technology and the needs of deep processing of petroleum, the catalytic cracking process generally needs to be mixed with residual oil. Since the residual oil contains more metals (such as nickel, iron, vanadium, sodium, etc.), these metals are continuously deposited on the On the FCC catalyst, it will cause catalyst poisoning and deactivation and make the selectivity worse, increase the yield of hydrogen and coke, and reduce the yield of gasoline and light oil

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] It is prepared by taking 6% by weight of antimony compound, 10% of ligand, 12% of rare earth element compound, making up the balance with water, and adding water under normal temperature and pressure to stir and mix. The compound of antimony is prepared by mixing antimony oxide with α-glycolic acid and urea in a molar ratio of antimony ion, hydroxyl group and amine group in a ratio of 3:0.5:2 at normal pressure and 80°C; the ligand is a Ethanolamine; the preparation of the rare earth element compound is as follows: lanthanum carbonate is reacted with glacial acetic acid at normal pressure and 70° C. to generate lanthanum acetate dissolved in water, the concentration m% of the acetic acid solution is 10%, and the molar amount of lanthanum carbonate and acetic acid solution The ratio is 1:3.

Embodiment 2

[0023] It is prepared by taking 12% by mass of antimony compound, 9% of ligand, 10% of rare earth element compound, making up the balance with water, adding water under normal temperature and pressure, stirring and mixing. The antimony compound is prepared as follows: antimony oxide, hydroxysuccinic acid, and N,N-dimethylformamide are prepared at normal pressure and at 100°C in a molar ratio of antimony ion, hydroxyl group, and amino group in a ratio of 4:0.5:3 Mixing; the ligand is propanolamine; the preparation of the rare earth element compound is: reacting cerium carbonate with glacial acetic acid at normal pressure and 85° C. to generate cerium acetate soluble in water, and the concentration m% of the acetic acid solution is 20 %, the molar ratio of cerium carbonate to acetic acid solution is 1:2.

Embodiment 3

[0025] It is prepared by taking 18% by mass of antimony compound, 8% of ligand, making up the balance with water, adding water under normal temperature and pressure, stirring and mixing. The compound of antimony is prepared by: mixing antimony oxide with 2,5-dihydroxyvaleric acid and acrylamide at normal pressure and 120°C in a molar ratio of antimony ion, hydroxyl group, and amino group in a ratio of 3:0.5:2; The ligand is butanolamine.

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PUM

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Abstract

A water-soluble catalytic cracking multifunctional deactivator is disclosed. The deactivator comprises following components by weight: 6-30% of an antimony compound and 2-10% of a ligand, with the balance being water. In addition, a preparing method of the deactivator is disclosed. The deactivator has characteristics of capability of deactivating a plurality of metals simultaneously, good dispersity, high activity, low toxicity, miscibility with water, high deposition efficiency of effective components, and significant deactivating effects.

Description

technical field [0001] The invention belongs to the field of chemical industry, and in particular relates to a water-soluble catalytic cracking multifunctional metal passivator and a preparation method thereof. Background technique [0002] With the development of catalytic cracking technology and the needs of deep processing of petroleum, the catalytic cracking process generally needs to be mixed with residual oil. Since the residual oil contains more metals (such as nickel, iron, vanadium, sodium, etc.), these metals are continuously deposited on the On the FCC catalyst, it will cause catalyst poisoning and deactivation, make the selectivity worse, increase the yield of hydrogen and coke, and reduce the yield of gasoline and light oil. For the pollution of nickel, iron, vanadium, sodium and other metals on the balancer, in addition to pretreatment and demetallization of raw materials, the industry generally adopts catalysts with strong anti-heavy metal ability, unloads the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J33/00C10G11/00
Inventor 顾同新
Owner 宜兴汉光高新石化有限公司
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