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

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0016] Example 1:

[0017] There are 20 pairs of INOSEP installed TM Ion exchange membrane, an electrodialysis device with an effective separation area of ​​1 square meter, add 10 kilograms of pretreated tobacco stem extract with an initial conductivity of 16.5 mS / cm and a concentration of 8.5% in the light room, and put it in the thick room Add 5 kg of deionized water, adjust the DC voltage to 40V, the flow rate of the tobacco stem extract to 5L / min, the flow rate of deionized water to 2.5L / min, stop the electrodialysis when the conductivity of the light chamber reaches 5.02mS / cm, and remove ammonium. The root work curve shows that the deammonium root rate of the material is 70%, and the actual measurement is 72%.

Example Embodiment

[0018] Example 2:

[0019] There are 20 pairs of INOSEP installed TM Ion exchange membrane, an electrodialysis device with an effective separation area of ​​1 square meter, add 10 kilograms of pretreated tobacco leaf extract with an initial conductivity of 29.8 mS / cm and a concentration of 20% in the light room, and put it in the thick room Add 3.3 kg of tap water, adjust the DC voltage to 8V, the flow rate of the tobacco stem extract to 6L / min, the flow rate of tap water to 2L / min, and stop the electrodialysis when the conductivity of the fresh room reaches 2.36mS / cm. The deammonium root rate was 89%, and the measured rate was 86%.

Example Embodiment

[0020] Example 3:

[0021] There are 20 pairs of INOSEP installed TM Ion exchange membrane, an effective separation area of ​​1 square meter electrodialysis device, add 5 kg of the pretreated stem leaf mixed extract with an initial conductivity of 18.1 mS / cm and a concentration of 10% in the light chamber. Add 15 kg of tap water to the chamber, adjust the DC voltage to 20V, the flow rate of the stem leaf extract to 5L / min, the flow rate of tap water to 5L / min, and stop the electrodialysis when the conductivity of the fresh chamber reaches 9.33mS / cm. The working curve of desammonium root shows The deammonium rate of the material is 54%, which is 56% in actual measurement.

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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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