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Ammonia complex composite capable of selectively reducing ammonia in smoke

An ammonia complex and composite material technology is applied in the field of ammonia complex composite materials that can selectively reduce ammonia in flue gas, can solve problems such as poor selectivity, and achieves low production cost, good selectivity effect, and stability. Good results

Active Publication Date: 2013-05-01
CHINA TOBACCO FUJIAN IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, the main method to deal with gaseous ammonia pollution is adsorption, and the commonly used adsorbents are molecular sieves, gels, zeolite activated carbon, etc. These methods have good adsorption but poor selectivity

Method used

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  • Ammonia complex composite capable of selectively reducing ammonia in smoke
  • Ammonia complex composite capable of selectively reducing ammonia in smoke
  • Ammonia complex composite capable of selectively reducing ammonia in smoke

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Weigh 10g of sodium alginate, add 100mL of water, stir thoroughly to make it gelatinous, add gelatinous sodium alginate to 10g CaCl 2 The aqueous solution is stirred rapidly and reacts rapidly to produce alginic acid complexes. The water is filtered off, dried in an oven at 80℃ for 5 hours, and then ground by a grinder to obtain CaCl 2 Composite materials.

Embodiment 2

[0022] Weigh 20g of sodium alginate, add 200mL of water, stir thoroughly to make it gelatinous, add the gelatinous sodium alginate to CaCl 2 25g of aqueous solution, stirred rapidly and reacted quickly to produce alginic acid complex, filtered off the water, dried in an oven at 60℃ for 6h, then grinded by a grinder to obtain CaCl 2 Composite materials.

[0023] Example 1, 2 Synthetic ammonia CaCl 2 There is no significant difference in the ammonia reduction effect of complex composite materials.

Embodiment 3

[0025] Weigh 10g of sodium alginate, add 150mL of water, stir well to make it gelatinous, add the gelatinous sodium alginate to CuCl 2 15g of aqueous solution, stirred rapidly and reacted rapidly to produce alginic acid complex, filtered off the water, dried in an oven at 70℃ for 7 hours, and then ground by a grinder to obtain CuCl 2 Composite materials.

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Abstract

The invention provides an ammonia complex composite capable of selectively reducing ammonia in smoke. A preparation method of the ammonia complex composite comprises the steps that a certain amount of sodium alginate is weighed; water is added, and stirred fully to ensure that sodium alginate is jellied; a metal chloride solution with a certain concentration is added and stirred quickly, reacts, and is subjected to moisture removal, placed in a drying oven for drying, and ground by a grinding mill; and a sample is obtained. The composite is added to a filter stick of a cigarette, can selectively reduce ammonia in the smoke, is obvious in effect, low in production cost and high in adding safety, does not generate a negative effect on sensory quality of the cigarette, and has a good industrial application prospect, and the operation is easy and simple.

Description

Technical field [0001] The invention relates to the preparation of an ammonia complex composite material and its application in selectively reducing ammonia in flue gas Background technique [0002] Ammonia is one of HOFFMANN's 44 harmful ingredients. The content of ammonia in fresh tobacco leaves is very small. After the tobacco leaves are modulated and fermented, their content increases due to the metabolic oxidation and deoxygenation of protein and amino acids. The amino acids, proteins, nitrates and ammonium salts in tobacco leaves are the precursors of ammonia in cigarette smoke. In cigarettes, an appropriate amount of ammonia is necessary for cigarettes with more carbohydrates and organic acids, and it and other nitrogen-containing compounds participate in the formation of smoke taste. Ammonia content is too low, it will cause the smoke strength to decrease, and the fullness is not enough; but excessive ammonia will produce strong irritation, cause the smoker's throat to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/22A24D3/14
Inventor 张建平黄朝章邓其馨叶仲力吴清辉赵艺强苏明亮白雪平蔡国华许寒春谢卫
Owner CHINA TOBACCO FUJIAN IND
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