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Adsorption desulphurization catalyst and preparation method thereof

An adsorption desulfurization and catalyst technology, applied in molecular sieve catalysts, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of low sulfur capacity, poor regeneration stability, loss of octane number, etc., and reduce residence time. , Improve the regeneration stability performance, the effect of basically no loss of octane number

Active Publication Date: 2016-07-06
PETROCHINA CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0010] The purpose of the present invention is to provide an adsorption desulfurization catalyst and its preparation method to solve the problems of low sulfur capacity, poor regeneration stability and octane loss caused by olefin saturation in the prior art Ni-ZnO adsorption desulfurization catalyst

Method used

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  • Adsorption desulphurization catalyst and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] (1) The ZSM-5 / MCM-41 composite molecular sieve is subjected to hydrothermal dealumination for standby, and the specific treatment conditions are as follows: (a) ZSM-5 / MCM-41 composite molecular sieve is self-made, and its silicon-aluminum ratio is 32.1; (b) 100g molecular sieves were treated continuously for 5 hours under the conditions of 480°C and 90g / h water vapor; (c) drying the obtained molecular sieves under the conditions of 300°C for use.

[0055] (2) Add 500ml of deionized water into the neutralization kettle, heat to 50°C, add 36g of ZSM-5 / MCM-41 composite molecular sieve and stir well.

[0056] (3) 15.7g of zirconium oxychloride was dissolved in nitric acid for subsequent use.

[0057] (4) 35.0g of nickel nitrate and 875.9g of zinc nitrate were added into 1500ml of water and dissolved completely, and zirconium oxychloride prepared in step (3) was added into the nickel-zinc solution to obtain an acid solution.

[0058] (5) Dissolve 500 g of sodium carbonate i...

Embodiment 2

[0067] The catalyst preparation steps and conditions were carried out according to Example 1.

[0068] Nickel nitrate 17.5g, zinc nitrate 656.9g, ZSM-5 / MCM-41 composite molecular sieve 90.0g, zirconium oxychloride 39.3g, silica gel 17.5g. Catalyst A-2 was obtained.

Embodiment 3

[0070] The catalyst preparation steps and conditions were carried out according to Example 1.

[0071] Nickel nitrate 58.4g, zinc nitrate 766.4g, ZSM-5 / MCM-41 composite molecular sieve 60.0g, zirconium oxychloride 31.4g, silica gel 5.0g. Catalyst A-3 was obtained.

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Abstract

The invention discloses an adsorption desulphurization catalyst and a preparation method thereof. The catalyst mainly comprises: 60.0-80.0 wt% of a zinc oxide, 1.0-6.0 wt% of a nickel oxide, 1.0-5.0 wt% of a zirconia, 12.0-30.0 wt% of a ZSM-5 / MCM-41 composite molecular sieve, and 1.0-6.0 wt% of SiO2. The catalyst has the characteristics of high sulfur capacity, good regeneration and stabilization performance, substantially unsaturated olefin and substantially no loss of octane value, and is especially suitable for an FCC gasoline deep desulfurization process.

Description

technical field [0001] The invention relates to an adsorption desulfurization catalyst and a preparation method thereof, more specifically to a hydrogen adsorption desulfurization catalyst and a preparation method thereof, and is especially suitable for deep desulfurization of FCC gasoline. Background technique [0002] The SOx produced by the combustion of organic sulfur compounds in gasoline has many hazards to the atmospheric environment and is the main contributor to acid rain and smog. As the atmosphere in some parts of my country continues to deteriorate in the past two years, environmental protection regulations have become increasingly stringent. The National V standard gasoline was promulgated on December 18, 2013, requiring the sulfur content to be less than 10ppm. The transition period is until December 31, 2017. At the end of 2012, Beijing and Shanghai took the lead in implementing the National V gasoline quality standard (sulfur content less than 10ppm). less t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J29/80B01J20/18C10G45/12C10G25/05
Inventor 朴佳锐兰玲赵秦峰李阳金辰康宏敏吕忠武马健波
Owner PETROCHINA CO LTD
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