Fine desulfurizing agent and preparation method thereof

A kind of desulfurization agent, fine technology, applied in the field of fine desulfurization agent and its preparation, can solve the problem of low desulfurization precision, achieve the effect of high desulfurization efficiency, promote improvement, and promote desulfurization efficiency

Active Publication Date: 2014-04-09
BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The problem to be solved by the present invention is the problem of low desulfurization precision in the fine desulfurizer used at normal temperature and low temperature in the prior art, and further provides a zinc-containing raw material with high desulfurization precision used at normal temperature and low temperature Fine desulfurizer as active component and preparation method thereof

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] The preparation method of fine desulfurizer described in the present embodiment is:

[0037] (1) The three components of basic zinc carbonate, copper carbonate and alumina cement of the following parts by weight are mixed together and stirred uniformly:

[0038] Basic zinc carbonate, 65 parts;

[0039] Copper carbonate, 15 parts;

[0040] Bauxite cement, 10 parts;

[0041] (2) 2 parts by weight of water glass are dissolved in water to form a viscous solution, and stir evenly;

[0042] (3) uniformly mix the mixture obtained in the step (1) with the viscous solution of the binder obtained in the step (2), and extrude it into In the form of strips, it was cured at 30°C for 60 hours, sent to a drying oven, and baked at 110°C for 1 hour to make fine desulfurizer A. The desulfurizer has a sulfur capacity of 11.3% at 100°C and a sulfur capacity of 12.4% at 170°C.

Embodiment 2

[0044] (1) four components of the basic zinc carbonate, copper carbonate, iron oxyhydroxide and alumina cement of the following parts by weight are mixed together and stirred uniformly:

[0045] Basic zinc carbonate, 60 parts;

[0046] Copper carbonate, 15 parts;

[0047] r-iron oxyhydroxide, 3.5 parts;

[0048] Bauxite cement, 10 parts;

[0049] (2) 1.5 parts by weight of water glass is dissolved in water to form a viscous solution, and stir evenly;

[0050] (3) uniformly mix the mixture obtained in the step (1) with the viscous solution of the binder obtained in the step (2), and extrude it into In the form of strips, it was cured at 20°C for 36 hours, sent to a drying oven, and baked at 130°C for 3 hours to make fine desulfurizer B. The desulfurizer has a sulfur capacity of 12.8% at 100°C and a sulfur capacity of 13.3% at 170°C.

Embodiment 3

[0052] The preparation method of fine desulfurizer described in the present embodiment is:

[0053] (1) four components of the basic zinc carbonate, copper carbonate, iron oxyhydroxide and alumina cement of the following parts by weight are mixed together and stirred uniformly:

[0054] Basic zinc carbonate, 55 parts;

[0055] Copper carbonate, 20 parts;

[0056] r-iron oxyhydroxide, 5 parts;

[0057] Bauxite cement, 9.5 parts;

[0058] (2) 4 parts by weight of carboxymethylcellulose powder are dissolved in water to form a viscous solution, and stir evenly;

[0059] (3) uniformly mix the mixture obtained in the step (1) with the viscous solution of the binder obtained in the step (2), and extrude it into In the form of strips, it was cured at 40°C for 48 hours, sent to a drying oven, and baked at 120°C for 2 hours to make fine desulfurizer C. The desulfurizer has a sulfur capacity of 11.5% at 20°C and a sulfur capacity of 15.0% at 170°C.

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Abstract

A raw material for fine desulfurizing agent comprises the following raw materials: 55 to 70 part of basic zinc carbonate, 15 to 30 part of copper carbonate, 8 to 13 part of alumina cement and 1 to 4 part of binder. The raw materials of the fine desulfurizing agent contain basic zinc carbonate and copper carbonate, larger pore paths can be generated in the accumulation process as the copper carbonate molecules have larger volume; and unreacted sulfide can be diffused into crystal lattices of active components more easily, therefore, the fine desulfurizing agent has higher desulfurizing precision and higher sulfur capacity.

Description

technical field [0001] The invention relates to a fine desulfurizer and a preparation method thereof, in particular to a fine desulfurizer used at normal temperature and low temperature, which can remove H from gaseous raw materials. 2 A fine desulfurizer for S and carbonyl sulfide and a preparation method thereof. Background technique [0002] Zinc oxide desulfurizer is mainly composed of ZnO, adding binder alumina cement or cellulose, and sometimes adding some pore-forming agent to change the pore structure of zinc oxide desulfurizer to improve the activity and crushing strength of the desulfurizer . Zinc oxide desulfurizer is widely used in synthetic ammonia, synthetic methanol, coal chemical industry, petroleum refining and other industries due to its advantages of easy use and stable performance. However, traditional zinc oxide desulfurizers generally need to be used at high temperatures (220-420°C), so they need a heat source and consume a certain amount of energy, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D53/48B01D53/52C10K1/20
Inventor 冯续赵素云谢红李博闻学兵刘彦芳赵文涛
Owner BEIJING SJ ENVIRONMENTAL PROTECTION & NEW MATERIAL CO LTD
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