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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 catalyst 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 and production The effect of low cost and simple preparation method

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

[0043] According to a preferred embodiment of the present invention, the inorganic oxide carrier is at least one selected from alumina, spinel and perovskite, more preferably alumina.

[0044] In the present invention, the alumina can be selected from at least one of γ-alumina, δ-alumina, η-alumina, ρ-alumina, κ-alumina and χ-alumina, and the present invention There is no particular limitation.

[0045] The alumina may be derived from various sols or gels of aluminum, or aluminum hydroxide. The aluminum hydroxide may be selected from at least one of gibbsite, pyrenite, diaspore, diaspore, boehmite and pseudoboehmite. Preferably the alumina is derived from pseudoboehmite.

[0046] The above-mentioned inorganic oxide supports are commercially available, and can also be prepared by existing methods.

[0047] According to a most preferred embodiment of the present invention, with specific content Fe, Co are used as metal elements, can greatly improve the composition that can re...

Embodiment 1

[0092] (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 Add 100g of bauxite colloid, the same below) into 3500mL of water and stir until it is fully dissolved, then add bauxite colloid and stir for 20min to obtain a slurry, spray dry the slurry, and take 100g of spray-dried particles (average particle diameter is 65μm, particle particles with a diameter 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.

[0093] The content determination results of each component in composition S-1 are listed in Table 1.

[0094] Carry out XRD analysis to ...

Embodiment 2

[0098] (1) Add 2.56kg of pseudoboehmite to 13.9kg of deionized water for beating and dispersing, then add 232mL of hydrochloric acid to acidify for 15min to obtain bauxite colloid, add 140g of iron nitrate and 60g of cobalt nitrate calculated as metal oxides into 3500mL of water Stir until fully dissolved, add the bauxite colloid, stir for 20 minutes to obtain a slurry, spray dry the slurry, transfer 100 g of the spray-dried particles to a tube furnace, and feed the CO concentration at a flow rate of 100mL / min 10% by volume CO / N 2 Mixed gas and treated at 500°C for 3 hours to obtain composition S-2.

[0099] The content determination results of each component in the composition S-2 are listed in Table 1. The XRD analysis result of composition S-2 is similar to that of Example 1. In the XRD spectrum of the composition S-2 treated with a carbon-containing atmosphere, there is not only Al at about 45.5° 2 o 3 and Co 2 AlO 4 , and there are obvious diffraction peaks at about...

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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 is composed of an inorganic oxide carrier and Fe and CO that are loaded on the inorganic oxide carrier. Based on the total amount of the composition, the content of the inorganic oxide carrier is 60-95wt%, and in terms of oxide, the total content of Fe and CO is 5-40wt%. The composition provided by the invention adopts Fe and CO as the main metal elements together for cooperative use, can maintain high hydrothermal stability, and also 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): B01J27/22B01J37/08B01D53/86B01D53/56B01D53/62C10G11/02
CPCB01D53/56B01D53/62B01D53/8628B01D53/864B01D2258/0283B01J23/002B01J27/22B01J37/0063B01J37/088B01J2523/00C10G11/02B01J2523/31B01J2523/842B01J2523/845Y02A50/20
Inventor 田辉平宋海涛孙言姜秋桥王鹏张杰潇张万虹李家兴达志坚
Owner CHINA PETROLEUM & CHEM CORP
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