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Ability to reduce co and no x Discharged composition, method for its preparation and use, and fluid catalytic cracking method

A composition and oxide technology, applied in catalytic cracking, metal/metal oxide/metal hydroxide catalyst, physical/chemical process catalyst, etc., can solve the problem of low catalytic conversion activity, and achieve high catalytic conversion activity, The effect of reducing CO and NOx emissions and usage

Active Publication Date: 2020-11-13
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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  • Ability to reduce co and no <sub>x</sub> Discharged composition, method for its preparation and use, and fluid catalytic cracking method
  • Ability to reduce co and no <sub>x</sub> Discharged composition, method for its preparation and use, and fluid catalytic cracking method
  • Ability to reduce co and no <sub>x</sub> Discharged composition, method for its preparation and use, and fluid catalytic cracking method

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Embodiment approach

[0035] According to a most preferred embodiment of the present invention, the composition is composed 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 elements are only Fe and Co.

[0036] In the present invention, as long as Fe and Co are contained in the first metal element, the composition to NH 3 The catalytic conversion activity of reduction state nitrides, etc., 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:(0.1-10), more preferably 1:( 0.3-3), more preferably 1: (0.4-2).

[0037] 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.

[0038] According to a preferred embodiment of the present invention, at least part of th...

specific Embodiment approach

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

[0055] Among 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) .

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

[0057] (1) Mix and beat the precursor of the inorganic oxide carrier, the fir...

Embodiment 1

[0108] (1) 2.62kg of pseudo-boehmite was added into 14.2kg of deionized water for beating and dispersion, then 238mL of hydrochloric acid was 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 Add 100g of MgO into 3500mL of water and stir until fully dissolved, then add bauxite colloid and stir for 15min to obtain the first solution; add 100g of MgO to 360g of water, stir for 10min, then add to the first solution, stir for 20min , to obtain a slurry, the slurry is spray-dried, and the spray-dried particles 150g (the average particle diameter is 65 μm, and the particles with a particle diameter of 40-80 μm account for 60%, the same below) are transferred to a tube furnace. The flow rate of / min is fed into CO / N with a CO concentration of 10% by volume 2 Mixed gas, treated at 600°C for 1.5h to obtain a semi-finished composition;

[0109] (2) Weigh 100g of the ab...

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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 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 Patents(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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