Cocatalyst for reducing FCC (fluid catalytic cracking) regeneration flue gas pollutant discharge and application thereof

A pollutant emission and co-catalyst technology, applied in the direction of physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, heterogeneous catalyst chemical elements, etc., can solve the problem of not achieving efficient removal of SOx

Active Publication Date: 2017-07-07
HEBEI XINPENG CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the development and application of three-way co-catalysts have reduced the emission of flue gas pollutants from FCC units to a certain extent, but in general, the three-way co-catalysts in industrial application reports a

Method used

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  • Cocatalyst for reducing FCC (fluid catalytic cracking) regeneration flue gas pollutant discharge and application thereof
  • Cocatalyst for reducing FCC (fluid catalytic cracking) regeneration flue gas pollutant discharge and application thereof
  • Cocatalyst for reducing FCC (fluid catalytic cracking) regeneration flue gas pollutant discharge and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0034] This embodiment provides a co-catalyst for reducing the emission of atmospheric pollutants such as NOx, SOx and CO in the regeneration flue gas. The co-catalyst includes microsphere particles A and microsphere particles B.

[0035] Wherein, microsphere particle A is prepared by the following steps:

[0036] Add deionized water into the stirring tank, then add 1.576 kg of pseudo-boehmite for beating, control the solid content of the slurry to about 12%, and beat for about 30 minutes; add hydrochloric acid solution, control the pH of the slurry to 1.2-2.0, and beat for about 60 minutes ;Continue to add 0.097 kg of kaolin into the stirring tank, beating for about 60 minutes; heat up to 60-80°C, let it stand for aging for about 120 minutes and continue stirring for 30 minutes, and then pump the colloidal material after beating into the spray drying system , to obtain a microsphere particle carrier, the microsphere particle carrier was calcined at 700° C. for 120 minutes to ...

Embodiment 2

[0045] This embodiment provides a co-catalyst for reducing the emission of atmospheric pollutants such as NOx, SOx and CO in the regeneration flue gas. The co-catalyst includes microsphere particles A and microsphere particles B.

[0046] Wherein, microsphere particle A is prepared by the following steps:

[0047] Add deionized water into the stirring tank, then add 1.665 kg of pseudo-boehmite for beating, control the solid content of the slurry to about 12%, and beat for about 30 minutes; add hydrochloric acid solution, control the pH of the slurry to 1.2-2.0, and beat for about 60 minutes ;Continue to add 0.002 kg of kaolin into the stirring tank, beating for about 60 minutes; heat up to 60-80°C, let it stand for aging for about 120 minutes and continue stirring for 30 minutes, and then pump the colloidal material after beating into the spray drying system , to obtain a microsphere particle carrier, the microsphere particle carrier was calcined at 700° C. for 120 minutes to ...

Embodiment 3

[0056] This embodiment provides a co-catalyst for reducing the emission of atmospheric pollutants such as NOx, SOx and CO in the regeneration flue gas. The co-catalyst includes microsphere particles A and microsphere particles B.

[0057] Wherein, microsphere particle A is prepared by the following steps:

[0058] Add deionized water into the stirred tank, then add 1.468 kg of pseudo-boehmite for beating, control the solid content of the slurry to about 12%, and beat for about 30 minutes; add hydrochloric acid solution, control the pH of the slurry to 1.2-2.0, and beat for about 60 minutes ;Continue to add 0.213 kg of kaolin into the stirring tank, beat for about 60 minutes; heat up to 60-80°C, let it stand for aging for about 120 minutes and continue to stir for 30 minutes, then pump the colloidal material after beating into the spray drying system , to obtain a microsphere particle carrier, the microsphere particle carrier was calcined at 700° C. for 120 minutes to obtain 1 ...

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Abstract

The invention relates to a cocatalyst for reducing the FCC (fluid catalytic cracking) regeneration flue gas pollutant discharge and application thereof. The cocatalyst comprises microsphere particles A and microsphere particles B, wherein through being metered by 100 percent of the weight of the microsphere particles A, the microsphere particle A is prepared from 80 to 98 percent of aluminum oxide, 0.1 to 10 percent of silicon oxide, 1 to 15 percent of oxide of one or two kinds of metals selected from groups VIB and IB and 0.1 to 3 percent of oxide of rare earth elements; through being metered by 100 percent of the weight of the microsphere particles B, the microsphere particle B is prepared from 50 to 80 percent of aluminum oxide, 10 to 50 percent of oxide of one or several kinds of metals selected from groups IIA, IVB and VIII and 0.1 to 10 percent of oxide of rare earth elements. The cocatalyst is applied to the reduction of nitrogenous pollutant discharge; the discharge of atmospheric pollutants such as NOx, Sox and CO in regeneration flue gas can be obviously reduced.

Description

technical field [0001] The invention relates to a co-catalyst for reducing the emission of atmospheric pollutants such as NOx, SOx and CO in the regeneration flue gas of an FCC device and its application. Background technique [0002] Fluid catalytic cracking (hereinafter referred to as FCC) unit is one of the important heavy oil lightening units in refineries. It is the core unit for the production of light oil, especially high-octane gasoline, and also an important unit for the production of low-carbon olefins and other organic chemical raw materials. craft. However, the FCC regeneration flue gas contains a certain amount of pollutant gases such as SOx, NOx and CO, which are not friendly to the environment. According to statistics, SOx and NOx emitted by refineries account for 6%-7% and 10% of the total emissions in the air respectively, most of which come from FCC devices. [0003] The NOx and SOx in FCC regeneration flue gas mainly come from nitrogen-containing compoun...

Claims

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Application Information

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IPC IPC(8): B01J23/89B01D53/86B01D53/60B01D53/62
CPCB01D53/8637B01D53/864B01D2258/0283B01J23/002B01J23/8993B01J2523/00B01J2523/18B01J2523/22B01J2523/31B01J2523/3712B01J2523/41B01J2523/55B01J2523/68B01J2523/69B01J2523/824B01J2523/842Y02A50/20
Inventor 王刚常瑞峰潘磊孙国峰
Owner HEBEI XINPENG CHEM CO LTD
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