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Adsorbent combination containing metal component of group VIII

A technology of metal components and compositions, applied in the field of adsorbent compositions containing Group VIII metal components, can solve the problems of ecological environment, human health damage, unsatisfactory results, etc., and achieve good regeneration stability

Active Publication Date: 2010-08-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These harmful gases cause serious damage to the ecological environment and human health
[0003] At present, the SOx emission control technology in the world is relatively mature. Although a series of researches have been carried out at home and abroad on the NOx emission control, the results are still not satisfactory.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0026]When the adsorbent composition also contains any other components that do not affect or can improve the performance of the composition provided by the present invention, for example, containing selected from IB, II B, III B, IV B, V B, VI B group Components, more preferably one or more of Cr, Cu, Zn, Ce, La, the preparation method also includes the step of introducing these components.

[0027] Wherein, there is no particular limitation on the introduction method of the other components, it may be the introduction of VIII in the step (1) and into the heat-resistant inorganic oxide matrix and / or the precursor of the heat-resistant inorganic oxide matrix The simultaneous introduction of the group metal component and at least one metal component selected from Group IA, II A can also be introduced separately. For example, it may be after combining the heat-resistant inorganic oxide matrix and / or the precursor of the heat-resistant inorganic oxide matrix with the compound con...

Embodiment 1

[0040] Raw material: γ-Al 2 o 3 Carrier, spherical, with an average particle size of 1.3 mm, the product of Changling Catalyst Factory; Mg(NO 3 ) 2 , Co(NO 3 ) 2 All are products of Beijing Chemical Plant.

[0041] Preparation method: 259 grams of Mg(NO 3 ) 2 Dissolve 544 g of Co(NO 3 ) 2 Dissolve in deionized water to make 1 liter of solution L2. Sequentially impregnate 1000 grams of γ-Al with L1 and L2 2 o 3 Carrier for 2 hours, dried at 110°C for 12 hours after each impregnation, and calcined at 900°C for 10 hours to obtain the composition Mg-Co-γ-Al of the present invention 2 o 3 .

[0042] Composition: The loading of each component is based on MgO, Co 3 o 4 In total, the magnesium content was 7% by weight and the cobalt content was 15% by weight.

[0043] transition metal Co 3+ and Co 4+ Gauge, Co 3+ The content is 17%, Co 4+ The content is 83%.

Embodiment 2

[0045] Raw materials: silica carrier, spherical, with an average particle size of 1.22 mm, product of Changling Catalyst Factory; Co(NO 3 ) 2 、K 2 CO 3 All are products of Beijing Chemical Plant.

[0046] Preparation method: the same method as in Example 1 to prepare the composition K-Co-SiO by step-by-step impregnation 2 . After each step of impregnation, dry at 110°C for 12 hours and bake at 750°C for 8 hours.

[0047] Composition: in K 2 CO 3 、Co 3 o 4 Gauge, composition K-Co-SiO 2 The potassium content was 4% by weight, and the cobalt content was 13% by weight.

[0048] Among them, cobalt is represented by Co 3+ and Co 4+ Appears, in elements, Co 3+ The content is 11%, Co 4+ The content is 89%.

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Abstract

The invention relates to an adsorbent combination containing a metal component of group VIII. The combination comprises a heat resistant inorganic oxide substrate, at least one metal component of the group VIII and at least one metal component of the group IA and / or IIA, wherein the heat resistant inorganic oxide substrate accounts for 50-99 wt% based on the combination; and measured by oxides, the metal component of the group VIII accounts for 0.5-35 wt%, and the metal component of the group IA and / or IIA accounts for 0.5-35 wt%. Compared with the prior art, the combination maintains high performance for removing oxides and nitrogen oxides from sulfur, and achieves high regeneration stability meanwhile.

Description

technical field [0001] The present invention relates to an adsorbent, in particular to an adsorbent composition containing Group VIII metal components. Background technique [0002] Atmospheric sulfur oxide SOx (more than 95% is SO 2 ), nitrogen oxides NOx (more than 90% are NO) pollution problems are becoming more and more serious, and the flue gas produced by fuel combustion, metal smelting, etc. is the main source of SOx and NOx. These harmful gases cause serious damage to the ecological environment and human health. [0003] At present, the SOx emission control technology in the world is relatively mature. Although a series of researches have been carried out at home and abroad on the NOx emission control, the results are still not satisfactory. [0004] US6521559 discloses a columnar clay catalyst suitable for utilizing NH 3 Selective Catalytic Reduction (SCR) for reducing NO. The characteristics of this catalyst are mainly the introduction of metal oxides such as V...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/78B01D53/94B01D53/60
CPCY02A50/20
Inventor 杜冰宗保宁罗一斌王维家
Owner CHINA PETROLEUM & CHEM CORP