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High-performance desulfurization and denitrification activated carbon and preparation method thereof

A desulfurization and denitrification, activated carbon technology, applied in the direction of separation methods, chemical instruments and methods, program control, etc., can solve the problems of poor treatment effect of desulfurization and denitrification activated carbon, polluting the environment, cumbersome preparation methods, etc.

Inactive Publication Date: 2017-07-18
FUJIAN XINSEN CARBON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The chemical activation method is to add chemicals to the raw materials, and then heat them in an inert gas medium to activate them; the most representative chemical activation methods are zinc chloride method, phosphate method, calcium chloride method and alkali method; but due to The use of chemicals will bring the following problems: highly corrosive to equipment; pollute the environment; chemicals remain in the activated carbon; a large amount of chemicals are consumed and the cost is high; an external heat source is required and the activation temperature is strictly controlled
[0011] To sum up, the problems existing in the prior art are: poor treatment effect of desulfurization and denitrification activated carbon, small sulfur capacity and nitrate capacity, cumbersome preparation method; poor intelligent control; not making full use of waste for resource reuse

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  • High-performance desulfurization and denitrification activated carbon and preparation method thereof
  • High-performance desulfurization and denitrification activated carbon and preparation method thereof

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preparation example Construction

[0067] Such as figure 1 As shown, the preparation method of the high-performance desulfurization and denitrification activated carbon provided by the embodiment of the present invention comprises the following steps:

[0068] S101: First, crush 100 parts of the plant matrix through a material chopping device, extrude into blocks, and form charcoal; activate the above-mentioned charcoal blocks into crude activated carbon by steam at a temperature of 800° C. to 950° C.;

[0069] S102: Pickling the above-mentioned crude activated carbon with a nitric acid pickling device; washing the crude activated carbon after pickling with a water washing device to a pH value of 7.0, and drying to obtain a desulfurization and denitrification activated carbon pre-carrier;

[0070] S103: 0.5-1.5 parts by mass of Ni as the basic active component, 2-10 parts by mass of Ce as the second active component, and 0.5-1.5 parts by mass of iron oxide It is the third active component, with zinc oxide of 0...

Embodiment 1

[0118] The preparation method of the high-performance desulfurization and denitrification activated carbon provided by the embodiment of the present invention comprises the following steps:

[0119] First, 100 parts of plant substrates are pulverized by a material chopping device, extruded into blocks, and formed into charcoal; the above-mentioned carbon blocks are activated by water vapor at a temperature of 800 ° C into crude activated carbon;

[0120] The above crude activated carbon is acid-boiled by a nitric acid pickling device; the acid-boiled crude activated carbon is washed to a pH value of 7.0 by a water washing device, and dried to obtain a desulfurization and denitrification activated carbon pre-carrier;

[0121] 0.5 parts by mass of Ni is the basic active component, 2 parts by mass of Ce is the second active component, 0.5 parts by mass of iron oxide is the third active component, and Zinc oxide with a mass part of 0.5 parts is the fourth active component. The pre...

Embodiment 2

[0123] The preparation method of the high-performance desulfurization and denitrification activated carbon provided by the embodiment of the present invention comprises the following steps:

[0124] First, 100 parts of plant substrates are crushed by a material chopping device, extruded into blocks, and formed into charcoal; at a temperature of 950 ° C, the above-mentioned carbon blocks are activated by water vapor into crude activated carbon;

[0125] The above crude activated carbon is acid-boiled by a nitric acid pickling device; the acid-boiled crude activated carbon is washed to a pH value of 7.0 by a water washing device, and dried to obtain a desulfurization and denitrification activated carbon pre-carrier;

[0126]1.5 parts by mass of Ni is the basic active component, 10 parts by mass of Ce is the second active component, 1.5 parts by mass of iron oxide is the third active component, and 1.5 parts by mass of Ni is the third active component. 1.5 parts of zinc oxide is ...

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Abstract

The invention belongs to the technical field of chemical materials and discloses a high-performance desulfurization and denitrification activated carbon and a preparation method thereof. The preparation method comprises the following steps: adopting a material crushing device for crushing plant substrates, extruding into blocks and forming carbon; activating; acid-cooking the crude product of the activated carbon by a nitric acid pickling device; taking 0.5-1.5 parts by mass of Ni as a basic active component, 2-10 parts by mass of Ce as a second active component, 0.5-1.5 parts by mass of ferric oxide as a third active component and 0.5-1.5 parts by mass of zinc oxide as a fourth active component; adopting an impregnation method and performing thermal treatment, thereby acquiring the high-performance desulfurization and denitrification activated carbon. The ferric oxide desulfurizing agent provided by the invention is a high-quality furfural extract, with higher desulfurizing efficiency and working sulfur capacity of 37-97mg SO2 / g catalyst. Denitrification is performed at different degrees while desulfurization is performed.

Description

technical field [0001] The invention belongs to the technical field of chemical materials, and in particular relates to a high-performance desulfurization and denitrification activated carbon and a preparation method thereof. Background technique [0002] Adsorption is a unit operation that uses the microporous characteristics of solid media to selectively adsorb components. It is a relatively mature separation and purification method and is widely used in chemical, environmental protection, pharmaceutical and military fields. Among many adsorbent materials, activated carbon is widely used because of its strong adsorption capacity and low cost. [0003] Activated carbon is a kind of porous carbon material, which has the advantages of large specific surface area, wide source of raw materials, high mechanical strength, easy regeneration and good stability. Activated carbon is usually obtained by carbonizing and activating raw materials under certain conditions. The main purp...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30B01D53/02B01D53/86B01D53/60G05B19/042B01J23/83
CPCB01D53/02B01D53/8637B01J20/20B01J23/83G05B19/042
Inventor 林锴林鹏徐沁杰周国军林树林雯怡张蕾
Owner FUJIAN XINSEN CARBON
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