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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, which is applied in catalytic cracking, physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problem of low catalytic conversion activity and achieve high catalytic conversion activity, Reduced consumption and low production cost

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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Embodiment approach

[0035] According to a most preferred embodiment of the present invention, the composition consists of an inorganic oxide carrier and a first metal element, a second metal element, and a third metal element supported on the inorganic oxide carrier, and the first metal The only elements are Fe and Co.

[0036] In the present invention, as long as the first metal element contains Fe and Co, it can increase the composition’s resistance to NH 3 In order to further exert the synergistic effect of Fe and Co for the catalytic conversion activity of such reduced nitrides, it is preferable that the weight ratio of Fe to Co is 1: (0.1-10), and more preferably 1: ( 0.3-3), more preferably 1: (0.4-2).

[0037] In the present invention, if there is no special description, Fe is calculated as oxide means Fe is Fe 2 O 3 Calculated, Co in oxide means Co in Co 2 O 3 meter.

[0038] According to a preferred embodiment of the present invention, the Fe in the composition is at least partially in the for...

specific Embodiment approach

[0054] According to a specific embodiment of the present invention, the composition comprises: alumina and Fe, Co, Mg and Ru supported on the alumina. The weight ratio of Fe to Co is 1:(0.4-2 ), based on the total composition, the content of alumina is 72-85% by weight, the total content of Fe and Co is 10-16% by weight, and the content of Mg is 4.9-12% by weight based on oxides, The Ru content is 0.05-0.07% by weight.

[0055] In the present invention, the content of each component in the composition capable of reducing CO and NOx emissions is measured by X-ray fluorescence spectrometry (Petrochemical Analysis Method (RIPP Experimental Method), edited by Yang Cuiding et al., published by Science Press, 1990) .

[0056] The present invention also provides a method for preparing a composition capable of reducing CO and NOx emissions, the method comprising:

[0057] (1) Mixing and beating the precursor of the inorganic oxide carrier, the precursor of the first metal element, the prec...

Embodiment 1

[0108] (1) Add 2.62kg pseudo-boehmite into 14.2kg deionized water to make a slurry and disperse, then add 238mL hydrochloric acid to acidify for 15min to obtain bauxite colloid. The iron nitrate (with Fe 2 O 3 Calculated, the same below) 100g, cobalt nitrate (in Co 2 O 3 The same below) 100g was added to 3500mL of water and stirred until fully dissolved, the bauxite colloid was added to it, stirred for 15min to obtain the first solution; 100g MgO was added to 360g of water, stirred for 10min, then added to the first solution, stirred for 20min , The slurry is obtained, the slurry is spray-dried, and 150g of the spray-dried particles (the average particle size is 65 μm, the particles with the particle size of 40-80 μm account for 60%, the same below) are transferred to a tube furnace, and the amount is 100 mL / min flow into CO / N with a CO concentration of 10% by volume 2 The mixed gas is processed at 600°C for 1.5 hours to obtain a semi-finished composition;

[0109] (2) Weigh 100g...

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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 composition capable of reducing CO and NOx emission provided by the invention includes: an inorganic oxide carrier, and a first metal element, a second metal element and a third metal element that are loaded on the inorganic oxide carrier, wherein the first metal element includes Fe and CO, and in terms of oxide, Fe and CO are in a weight ratio of 1:(0.05-20). The composition providedby the invention adopts Fe and CO as the main metal elements together, and through further modification by at least one of the IA and / or IIA group metal elements and at least one of noble metal elements, the composition can maintain high hydrothermal stability, and has 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 method for preparing a composition capable of reducing CO and NOx emissions, and a composition capable of reducing CO and NOx emissions prepared by the method. Application of compositions for reducing CO and NOx emissions and fluid catalytic cracking methods. Background technique [0002] The continuous increase in crude oil prices has greatly increased the processing costs of refineries. On the one hand, refineries reduce costs by purchasing low-priced inferior oil; on the other hand, they increase economic benefits through deep processing of heavy oil. As an important means of processing heavy oil in refineries, catalytic cracking has a pivotal position in refineries. It is not only the main means for the balance of heavy oil in refineries and the production of clean fuels, but also the focus of energy conservation a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/22B01J23/78B01J23/89B01J37/08B01D53/86B01D53/56B01D53/62C10G11/02
CPCB01D53/8628B01D53/864B01D2258/0283B01J23/002B01J23/78B01J23/8946B01J27/22B01J37/0063B01J37/088B01J2523/00C10G11/02B01J2523/22B01J2523/31B01J2523/842B01J2523/845B01J2523/821B01J2523/23Y02A50/20
Inventor 姜秋桥宋海涛田辉平王鹏陈妍孙言刘博朱玉霞达志坚
Owner CHINA PETROLEUM & CHEM CORP
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