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Composition capable of reducing CO and NOx emission, preparation method and application thereof, and fluid catalytic cracking method

A composition and oxide technology, used in catalytic cracking, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems of low catalytic conversion activity and achieve high catalytic conversion activity, Simple preparation method and the effect of reducing CO and NOx emissions

Active Publication Date: 2019-01-15
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] For prior art regeneration process, NH 3 The defect that the catalytic conversion activity of reduced nitrogen compounds such as reduced state is lower, the present invention provides a kind of new composition that can reduce CO and NOx discharge, the preparation method of the composition that can reduce CO and NOx discharge and made by this method Composition capable of reducing CO and NOx emissions, application of the composition capable of reducing CO and NOx emissions in flue gas treatment, and a fluid catalytic cracking method

Method used

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  • Composition capable of reducing CO and NOx emission, preparation method and application thereof, and fluid catalytic cracking method
  • Composition capable of reducing CO and NOx emission, preparation method and application thereof, and fluid catalytic cracking method
  • Composition capable of reducing CO and NOx emission, preparation method and application thereof, and fluid catalytic cracking method

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preparation example Construction

[0029] The invention provides a method for preparing a composition capable of reducing CO and NOx emissions, the method comprising:

[0030] (1) mixing and beating the precursor of the inorganic oxide carrier, the precursor of the first metal element and water to obtain a slurry, spray-drying the slurry, and then performing the first roasting to obtain a semi-finished composition;

[0031] (2) Using the solution containing the precursor of the fourth metal element as the impregnating solution, the semi-finished composition obtained in step (1) is impregnated to obtain a solid product, and the solid product is subjected to alkali treatment, and then dried and / or the second Roasting;

[0032] Wherein, the first metal element is selected from Group VIII non-noble metal elements, and the first metal element includes Fe and Co; the fourth metal element is selected from at least one of noble metal elements;

[0033] Wherein, in the precursor of the first metal element, the amount o...

Embodiment approach

[0053] According to a preferred embodiment of the present invention, the method also includes: introducing a second metal element precursor and / or a third metal element precursor in the mixing and beating process described in step (1); From at least one of Group IA and / or Group IIA metal elements, the third metal element is selected from at least one of Group IB-VIIB non-noble metal elements.

[0054] Introducing the second metal precursor in the beating process can improve the performance of the composition, and introducing the third metal precursor in the beating process can also improve the performance of the composition, but at the same time introducing the second metal element precursor and the third metal element precursor The body is more conducive to further improving the performance of the composition.

[0055] Therefore, according to the preparation method of the present invention, in step (1), preferably, the precursor of the inorganic oxide carrier, the first metal...

Embodiment 1

[0101] (1) 2.62kg of pseudo-boehmite is added to 14.2kg of deionized water for beating and dispersion, then 238mL of hydrochloric acid is added for acidification for 15min to obtain the bauxite colloid, and ferric nitrate (calculated as Fe) 2 o 3 Count, the same below) 60g, cobalt nitrate (as Co 2 o 3 meter, the same below) 60g, KMnO 4 (calculated as MnO, the same below) 100g was added into 3500mL water and stirred until it was fully dissolved, then the bauxite colloid was added into it, and stirred for 15 minutes to obtain the first solution; 100g of MgO was added to 300g of water, stirred for 10 minutes, then added to the first solution, stirred After 20 minutes, the slurry was obtained, and the slurry was spray-dried, and 150 g of particles obtained by spray drying (the average particle diameter was 65 μm, and the particles with a particle diameter of 40-80 μm accounted for 60%, the same below) were transferred to a tube furnace, Air was introduced at a flow rate of 100m...

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Abstract

Relating to the field of catalytic cracking, the invention discloses a composition capable of reducing CO and NOx emission, a preparation method and application thereof, and a fluid catalytic crackingmethod. The method comprises: (1) mixing a precursor of an inorganic oxide carrier, a first metal element precursor and water, and performing pulping to obtain a slurry, subjecting the slurry to spray drying, and then conducting first roasting to obtain a semi-finished product composition; and (2) adopting a solution containing a fourth metal element precursor as the impregnating solution for impregnation of the semi-finished product composition obtained in step (1) to obtain a solid product, conducting alkali treatment on the solid product, and then conducting drying and / or second roasting.The composition prepared by the method provided by the invention has high hydrothermal stability and high activity of reducing the emission of regenerated flue gas CO and NOx.

Description

technical field [0001] The present invention relates to the field of catalytic cracking, in particular to a composition capable of reducing CO and NOx emissions, a preparation method of the composition capable of reducing CO and NOx emissions, and a composition capable of reducing CO and NOx emissions prepared by the method, the above-mentioned capable Use of a composition for reducing CO and NOx emissions and a fluid catalytic cracking process. Background technique [0002] The continuous rise of crude oil prices has greatly increased the processing costs of refineries. On the one hand, refineries can reduce costs by purchasing low-priced low-quality oil; on the other hand, they can increase economic benefits through deep processing of heavy oil. As an important means of heavy oil processing in refineries, catalytic cracking plays a pivotal role in refineries. It is not only the main means of heavy oil balance and clean fuel production in refineries, but also the focus of e...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/89C10G11/04C10G11/02
CPCB01J23/002B01J23/8946B01J23/8986B01J37/0201B01J37/06B01J37/08B01J2523/00C10G11/02C10G11/04C10G2300/405B01J2523/22B01J2523/72B01J2523/842B01J2523/845Y02A50/20
Inventor 宋海涛姜秋桥孙言王鹏田辉平张杰潇张万虹李家兴达志坚
Owner CHINA PETROLEUM & CHEM CORP
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