Catalyst for reducing CO content in cigarette smoke, and preparation and application thereof

A cigarette smoke and catalyst technology, which is applied in the direction of physical/chemical process catalysts, applications, metal/metal oxide/metal hydroxide catalysts, etc., can solve the problems that the taste and aroma of cigarettes cannot be guaranteed, and achieve stable properties and high production efficiency. The effect of simple process and low production cost

Active Publication Date: 2011-10-19
SHANGHAI TOBACCO GRP CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, the manganese oxide molecular sieve catalyst has a very large specific surface area (7000-8000m 2 / g), will absorb a large amount of aroma components in the smoke, and cannot guarantee the original taste and aroma of cigarettes

Method used

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  • Catalyst for reducing CO content in cigarette smoke, and preparation and application thereof
  • Catalyst for reducing CO content in cigarette smoke, and preparation and application thereof
  • Catalyst for reducing CO content in cigarette smoke, and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of transition metal-manganese composite oxide catalyst:

[0035] Add 5mL of concentrated sulfuric acid into 70mL of water and stir well. 4.5 mmol of copper nitrate, 40.5 mmol of manganese sulfate, and 30 mmol of potassium permanganate were added thereto. After stirring evenly, place it in a pressure-resistant reactor, and stand at 120°C for 1 day for crystallization. The reaction mixture was filtered, washed with water, and dried overnight at 110°C. The product is molded into 20-40 mesh particles to obtain the copper-manganese composite oxide catalyst.

[0036] Obtain the XRD spectrogram of the copper-manganese composite oxide catalyst of the present embodiment through detection, as figure 1 shown, from figure 1 It can be seen that the crystal phase of the copper-manganese composite oxide catalyst in this example is α-MnO 2 Mutually.

Embodiment 2

[0038] Preparation of transition metal-manganese composite oxide catalyst:

[0039] Add 5mL of concentrated sulfuric acid to 75mL of water and stir well. 30.0 mmol of cobalt nitrate, 40.5 mmol of manganese sulfate, and 30 mmol of potassium permanganate were added thereto. After stirring evenly, the temperature of the reaction system was raised to 85° C., and stirring was continued for 3 days. The reaction mixture was filtered, washed with water, and dried overnight at 110°C. The product is molded into 20-40 mesh particles to obtain the cobalt-manganese composite oxide catalyst.

[0040] After detecting the XRD spectrum of the cobalt-manganese composite oxide catalyst of the present embodiment, it can be seen that the crystal phase of the cobalt-manganese composite oxide catalyst of the present embodiment is α-MnO 2 Mutually.

Embodiment 3

[0042] Preparation of transition metal-manganese composite oxide catalyst:

[0043] Add 15mL of concentrated sulfuric acid into 70mL of water and stir well. 7.0 mmol of cerium nitrate, 40.5 mmol of manganese sulfate, and 30 mmol of potassium permanganate were added thereto. After stirring evenly, place it in a pressure-resistant reactor, and stand at 120°C for 3 days for crystallization. The reaction mixture was filtered, washed with water, and dried overnight at 110°C. The product is molded into 20-40 mesh particles to obtain the cerium-manganese composite oxide catalyst.

[0044] Obtain the XRD spectrogram of the cerium-manganese composite oxide catalyst of the present embodiment through detection, as figure 2 shown, from figure 2 It can be seen that the crystal phase of the cerium-manganese composite oxide catalyst in this example is α-MnO 2 Phase and γ-MnO 2 Mixture of phases. It is tested that the cerium-manganese composite oxide catalyst in this embodiment reduc...

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Abstract

The invention belongs to the technical field of the cigarette material preparation, and relates to a catalyst capable of effectively reducing CO content in cigarette, and preparation and application thereof. The catalyst for reducing the CO content in the cigarette smoke of the invention is a transition metal-manganese composite oxide catalyst, and the crystalline phase of the catalyst is alpha-MnO2 phase, gamma-MnO2 phase or the mixed phase of the two crystalline phases. In application, the transition metal-manganese composite oxide catalyst of the invention is added to an acetate fibre bundle and then coiled to form a filter tip which is capable of effectively reducing the CO content in the cigarette smoke by a reduction ratio of 4-11%. The production cost of the transition metal-manganese composite oxide catalyst of the invention is low, and the production process of the catalyst is simple; the properties of the catalyst are stable; and the catalyst is capable of overcoming the influence caused by the change of the environment during industrial production and sales processes.

Description

technical field [0001] The invention belongs to the technical field of cigarette material preparation, and relates to a catalyst capable of effectively reducing the CO content in cigarette smoke, as well as its preparation and application. Background technique [0002] CO is one of the main harmful substances in cigarette smoke. Due to the higher affinity of CO to hemoglobin than O 2 The affinity with hemoglobin is hundreds of times stronger, so once CO is inhaled into the human body, it will quickly combine with hemoglobin to form carboxyhemoglobin, which will reduce the blood oxygen delivery, cause human hypoxia, and increase the incidence of cardiovascular and cerebrovascular diseases. Therefore, researchers at home and abroad have done a lot of work on the selective reduction of CO content in cigarette smoke in order to develop technologies that can effectively reduce the content of harmful components in cigarette smoke without significantly affecting the quality of cig...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/889B01J23/34B01J23/68A24D3/06
Inventor 王磊郑赛晶刘百战刘浩张怡春田志坚王炳春
Owner SHANGHAI TOBACCO GRP CO LTD
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