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

A technology of composition and catalyst, applied in catalytic cracking, physical/chemical process catalyst, metal/metal oxide/metal hydroxide catalyst, etc., can solve the problem of low catalytic conversion activity, achieve high catalytic conversion activity, reduce Effect of CO and NOx emission activity 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

[0034] According to a most preferred embodiment of the present invention, the composition consists of an inorganic oxide carrier and a first metal element and a second metal element supported on the inorganic oxide carrier, and the first metal element is only Fe and Co .

[0035] In the present invention, as long as Fe and Co are contained in the first metal element, the composition to NH 3 Catalytic conversion activity of reduced state nitrides, in order to further bring into play the synergistic effect of Fe and Co, preferably, in terms of oxides, the weight ratio of Fe and Co is 1: (0.3-3), more preferably 1: ( 0.5-2).

[0036] In the present invention, unless otherwise specified, Fe in terms of oxides refers to Fe in terms of Fe 2 o 3 In terms of, Co in terms of oxides refers to Co in terms of Co 2 o 3 count.

[0037] According to a preferred embodiment of the present invention, at least part of the Fe in the composition exists in the form of iron carbide, preferably...

specific Embodiment approach

[0052] According to a specific embodiment of the present invention, the composition includes: alumina and Fe, Co and Mn supported on alumina, in terms of oxides, the weight ratio of Fe to Co is 1: (0.5-2), Based on the total amount of the composition, the content of aluminum oxide is 76-86% by weight, the total content of Fe and Co is 10-16% by weight, and the content of Mn is 2-8% by weight. The composition of the NH 3 The catalytic conversion activity and hydrothermal stability of iso-reduced nitrides are higher.

[0053] In the present invention, each component content in the composition that can reduce CO and NOx discharge all adopts X-ray fluorescence spectroscopic analysis method (petrochemical analysis method (RIPP experimental method), edited by Yang Cuiding, etc., published by Science Press in 1990) to measure .

[0054] The present invention also provides a method for preparing a composition capable of reducing CO and NOx emissions, the method comprising:

[0055]...

Embodiment 1

[0097] (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 meter, the same below) 100g, cobalt nitrate (in Co 2 o 3 meter, the same below) 100g, KMnO 4 (calculated as MnO, the same below) 100g was added into 3500mL water and stirred until it was fully dissolved, the bauxite colloid was added therein, and after stirring for 20min, a slurry was obtained, and the slurry was spray-dried, and 100g of particles obtained by spray drying (average particle diameter 65 μm, particles with a particle size of 40-80 μm accounted for 60%, the same below) were transferred to the tube furnace, and CO / N with a CO concentration of 10% by volume was fed at a flow rate of 100mL / min. 2 The mixed gas was treated at 600°C for 1.5h to obtain composition S-1.

[0098] The content determination results of each comp...

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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 and a second metal element that are loaded onthe 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:(0.1-10). The composition provided by the invention adoptsFe and CO as the main metal elements together, and through further modification by at least one of the IB-VIIB group non-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 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): B01J23/889B01J27/22C10G11/02C10G11/04B01D53/86B01D53/56B01D53/62
CPCC10G11/02C10G11/04B01J23/002B01J23/8892B01J27/22B01D2258/0283B01J2523/00B01J37/088B01D53/865B01D2257/502C10G2300/1037B01J2523/31B01J2523/72B01J2523/842B01J2523/845Y02A50/20
Inventor 王鹏宋海涛姜秋桥孙言田辉平张杰潇张万虹李家兴达志坚
Owner CHINA PETROLEUM & CHEM CORP
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