Filtration and retention characteristics of crotonaldehyde ... · China Tobacco Hunan Industrial...
Transcript of Filtration and retention characteristics of crotonaldehyde ... · China Tobacco Hunan Industrial...
China Tobacco Hunan Industrial Co., Ltd.
Filtration and retention characteristics of
crotonaldehyde in cigarette filters
Wen Jian-Hui1, Du Wen1, Peng Bin2, Li Bin2, Zhang Xiao-Bing2, Xie Fu-Wei2,
Liu Hui-Min2, Zhong Kejun1
1. Hunan Tobacco Industrial Co., Ltd. of CNTC
2. Zhengzhou Tobacco Research Institute of CNTC
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China Tobacco Hunan Industrial Co., Ltd. China Tobacco Hunan Industrial Co., Ltd.
Background 1
2 Expeimental
3 Results
4
Contents
Conclusion
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China Tobacco Hunan Industrial Co., Ltd. China Tobacco Hunan Industrial Co., Ltd.
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Word教程: www.1ppt.com/word/ Excel教程:www.1ppt.com/excel/
资料下载:www.1ppt.com/ziliao/ PPT课件下载:www.1ppt.com/kejian/ 范文下载:www.1ppt.com/fanwen/ 试卷下载:www.1ppt.com/shiti/
教案下载:www.1ppt.com/jiaoan/
Background
Smoke Filtration
Distribute in particulate phase:
Nicotine, B[a]P, NNK, Phenol……
Distribute in gaseous phase:
CO, CO2, N2, O2……
Distribute in both phases:
HCN, Ammonia, carbonyl compounds……
?
What happened while smoke flows
through the filter?
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China Tobacco Hunan Industrial Co., Ltd. China Tobacco Hunan Industrial Co., Ltd.
Background
Filtration efficienciy and distribution pattern of nicotine in
filters of different structure. CORESTA 2012, Sapporo, Japan.
Retention distribution patterns of phenolic compounds in filters.
CORESTA 2013, Seville, Spain.
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China Tobacco Hunan Industrial Co., Ltd.
PPT模板下载:www.1ppt.com/moban/ 行业PPT模板:www.1ppt.com/hangye/ 节日PPT模板:www.1ppt.com/jieri/ PPT素材下载:www.1ppt.com/sucai/
PPT背景图片:www.1ppt.com/beijing/ PPT图表下载:www.1ppt.com/tubiao/ 优秀PPT下载:www.1ppt.com/xiazai/ PPT教程: www.1ppt.com/powerpoint/
Word教程: www.1ppt.com/word/ Excel教程:www.1ppt.com/excel/
资料下载:www.1ppt.com/ziliao/ PPT课件下载:www.1ppt.com/kejian/ 范文下载:www.1ppt.com/fanwen/ 试卷下载:www.1ppt.com/shiti/
教案下载:www.1ppt.com/jiaoan/
China Tobacco Hunan Industrial Co., Ltd.
Background
Nicotine Phenol
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China Tobacco Hunan Industrial Co., Ltd. China Tobacco Hunan Industrial Co., Ltd.
Background
The filtration & retention characteristic investigation of nicotine, phenolic
componds, B[a]P, HCN, ammonia, carbonyl compounds in filters
The filtration efficiencies of different smoke components vary to a large
extent, and their retention distribution patterns are also varied.
The retention distribution pattern diversity of different components show the
high complexity of cigarette smoke filtration in cigarette filter.
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Experimental Samples for test
Table 1 Samples with different filter structure for test
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China Tobacco Hunan Industrial Co., Ltd. China Tobacco Hunan Industrial Co., Ltd.
Experimental
Filtration efficiency
E = W1
W1 + W2 ×100%
W1:Crotonaldehyde retained in filter
W2: Crotonaldehyde delivery in mainstream smoke
Homocentric lengthways cut Transversely cut
Filter cutting scheme
Retention distribution pattern
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China Tobacco Hunan Industrial Co., Ltd. China Tobacco Hunan Industrial Co., Ltd.
Experimental Retention crotonaldehyde concentration distribution at longitudinal direction and
longitudinal cross-section.
The concentration distribution data were then fitted using a cubic smoothing spline
a lgor i thm wri t ten in Mat lab 5 .3 . Distr ibut ion pat terns of retent ion
crotonaldehyde in filters displayed in longitudinal and 2D plot could be obtained.
Tobacco
rod
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China Tobacco Hunan Industrial Co., Ltd. China Tobacco Hunan Industrial Co., Ltd.
Results
Smoking
regime
Regular CA
filter
Outer grooved
CA filter
Inner grooved
CA filter
Paper/CA
filter
Ventilated cavity
CA filter
ISO
Mainstream 21.24 21.22 23.46 23.05 15.73
Filter retention 35.50 28.24 31.17 21.96 13.58
Total release 56.73 49.46 54.63 45.01 29.30
Filtration efficiency (%) 62.6 57.1 57.1 48.8 46.3
HCI
Mainstream 50.41
Filter retention 31.45
Total release 81.46
Filtration efficiency (%) 38.4
Table 2 Crotonaldehyde filtration efficiencies in filters of different structure under two regimes
1 Filtration efficiency under ISO and HCI smoking regimes
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2 Retention distribution patterns in regular CA filter under ISO and HCI smoking regimes
Results
Figure 1 Longitudinal distribution pattern of crotonaldehyde in regular CA filter
under ISO(A) and HCI(B) smoking regimes
A B
Nicotine
Phenol
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Results
Figure 2 Space distribution pattern of crotonaldehyde in regular CA filter under ISO(A) and HCI(B)
smoking regimes
A B
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Results
3 Retention distribution patterns in filters of different structure under ISO smoking regime
Figure 3 Longitudinal distribution patterns of crotonaldehyde in outer grooved filter (A), inner grooved
filter (B), paper/CA filter (C) and ventilate CA filter under ISO smoking regime
A B
D C
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Results
Figure 4 Space distribution patterns of crotonaldehyde in outer grooved filter (A), inner grooved filter (B),
paper/CA filter (C) and ventilate CA filter under ISO smoking regime
A B
C D
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Results
Crotonaldehyde shows a special retention distribution
pattern in filters, which is completely different from
other smoke components. WHY?
It is hypothesized that the smoke flow during puffing causes
crotonaldehyde desorption retained in the filter, and an
adsorption-desorption-adsorption occurs in the filter during the
smoking process.
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Results
Figure 5 Puff-by-puff crotonaldehyde retention longitudinal distribution pattern in regular CA
filter under ISO smoking regime
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Results
4th puff
5th puff
6th puff
Figure 6 In-situ real-time monitoring of smoke temperature in regular CA filter
Scheme of smoke
temperature monitoring
Micro thermocouple
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1. Filtration efficiency of crotonaldehyde in filters with
different structure were investigated. compared with ISO
s m o k i n g r e g i m e , c r o t o n a l d e h y d e f i l t r a t i o n
efficiency decreased significantly under HCI smoking
regime.
Conclusion
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Conclusion
2. There are significant differences between crotonaldehyde
and other smoke components such as nicotine and phenols,
in their retention distribution patterns. Different filter structures
also have notable influence on crotonaldehyde retention
distribution.
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Conclusion
3. Real-time puff-by-puff smoke temperature data indicates the
smoke flow during puffing causes desorption of crotonaldehyde
retained in the filter, an adsorption-desorption-adsorption
occurs in the filter during the smoking process. This desorption
effect mainly happened during the last two puffs at higher smoke
temperature.
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China Tobacco Hunan Industrial Co., Ltd.
Thanks for your attention!
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