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Method for reducing ammonium content in paper-making reconstituted tobacco

A papermaking method and deammonium technology, which are applied in the directions of tobacco, tobacco preparation, application, etc., to achieve the effects of high application value, low cost and convenient control

Inactive Publication Date: 2014-05-28
YUNNAN RES INST OF TOBACCO SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The current production process of paper-making reconstituted tobacco has almost no selectivity for the utilization of chemical components from tobacco raw materials. Almost all the ammonia precursors in the flue gas are transferred to the paper-making reconstituted tobacco products, and the paper-making reconstituted tobacco flue gas The amount of ammonia released is positively correlated with the ammonia precursor content of the raw material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] In the installation there are 20 pairs of INOSEP TM Ion exchange membrane, in an electrodialysis device with an effective separation area of ​​1 square meter, add 10 kg of pretreated tobacco stem extract with an initial conductivity of 16.5mS / cm and a concentration of 8.5% in the thin chamber, and put it in the thick chamber Add 5 kilograms of deionized water in the medium, adjust the DC voltage to be 40V, the flow rate of the tobacco stem extract is 5L / min, the flow rate of deionized water is 2.5L / min, and when the conductivity of the dilute chamber reaches 5.02mS / cm, stop the electrodialysis and deammonium Root working curve shows that the deammonium root rate of material is 70%, and measured 72%.

Embodiment 2

[0019] In the installation there are 20 pairs of INOSEP TM Ion exchange membrane, in an electrodialysis device with an effective separation area of ​​1 square meter, add 10 kg of pretreated tobacco leaf extract with an initial conductivity of 29.8mS / cm and a concentration of 20% in the dilute chamber, and put it in the concentrated chamber Add 3.3 kilograms of tap water, adjust the DC voltage to be 8V, the tobacco stem extract flow rate is 6L / min, the tap water flow rate is 2L / min, stop the electrodialysis when the conductivity of the fresh chamber reaches 2.36mS / cm, and the deammonium root working curve shows that the material The rate of deammonium radical removal is 89%, and actual measurement is 86%.

Embodiment 3

[0021] In the installation there are 20 pairs of INOSEP TM Ion exchange membrane, the effective separation area is in the electrodialysis device of 1 square meter, add 5 kilograms of initial conductivity to 18.1mS / cm in the dilute chamber, the concentration is the pretreated stalk leaf mixed extract of 10%, in concentrated Add 15 kilograms of tap water in the chamber, adjust the DC voltage to 20V, the flow rate of the stem leaf extract is 5L / min, the flow rate of tap water is 5L / min, and stop the electrodialysis when the conductivity of the fresh chamber reaches 9.33mS / cm. The working curve of deammonium root shows that The deammonium root rate of material is 54%, and measured is 56%.

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Abstract

The invention relates to a method for reducing ammonium content in paper-making reconstituted tobacco, belongs to the technical field of the paper-making reconstituted tobacco and is an improvement of an existing method for producing paper-making reconstituted tobacco. The improvement refers to that an electrodialysis ammonium removing process composed of a tobacco raw material extracting solution pretreating procedure and an electrodialysis ammonium removing procedure is added after a tobacco raw material solid-liquid separation process and before a process of concentrating extracting solution to prepare a coating material, wherein a, the tobacco raw material extracting solution pretreating procedure includes that insoluble solids with granular size larger than 200nm and colloidal substances in an extracting solution are removed by a ceramic membrane microfiltration technology; b, the electrodialysis ammonium removing procedure is finished in an electrodialysis device with a conductivity meter, and a working curve about correlation between a conductivity drop rate and ammonium removing amount after ammonium is removed by light-room raw materials is utilized to control the ammonium removing amount. The method for reducing the ammonium content in the paper-making reconstituted tobacco has the advantages that ammonium ion removing rate is high in the tobacco raw material extracting solution, raw material loss is less, ammonium ion content is convenient to control, cost is low, and an application value is high.

Description

Technical field: [0001] The invention relates to a method for reducing the ammonium root content of reconstituted tobacco leaves by a papermaking method, and belongs to the technical field of reconstituted tobacco leaves by a papermaking method. Background technique: [0002] Ammonia (NH3) is one of the main harmful components of cigarette smoke and an index item for evaluating the hazard index of cigarettes. Reducing the harm of cigarettes is the core of the healthy and sustainable development of the tobacco industry. [0003] Ammonia in cigarette smoke is based on ammonium salts, nitrates, nitrites, nicotine, protein, amino acids, and other nitrogen-containing compounds in tobacco as precursors, through the thermal decomposition of ammonium salts, nitrates, nitrous acid Ammonium salts are produced by redox reactions of salts with other substances and thermal cracking of nitrogen-containing organic compounds, and ammonium salts are highly effective precursors of ammonia in ...

Claims

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Application Information

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IPC IPC(8): A24B3/14
Inventor 孔宁川王建马迅向海英余开平简彬刘晶殷艳飞王浩雅徐广晋王保兴
Owner YUNNAN RES INST OF TOBACCO SCI
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