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Activated carbon beads for smoking articles

A smoking product, activated carbon technology, applied in the direction of tobacco, pipe, application, etc.

Active Publication Date: 2021-07-30
PHILIP MORRIS PROD SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Additionally, particle leakage may result from handling filters containing activated carbon or from incorporating such filters into smoking articles
For example, a continuous rod of activated carbon-containing filters may be cut into smaller segments for incorporation into smoking articles on the smoking article production line, and cutting a filter containing activated carbon may result in the release of previously trapped activated carbon particles

Method used

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  • Activated carbon beads for smoking articles
  • Activated carbon beads for smoking articles
  • Activated carbon beads for smoking articles

Examples

Experimental program
Comparison scheme
Effect test

example

[0066] Obtain multiple seeds and carbonize and activate them.

[0067] Table 1 below presents an overview of the natural sizes of some of the seeds employed.

[0068] Table 1. Overview of some of the seeds studied

[0069]

[0070]

[0071]These natural seeds are dried (for example, in an oven at 110° C. for 3 h) and carbonized to obtain spherical char (or ovoid char in the case of palm trees). To obtain spherical (or oval) activated carbon, the method used is direct physical activation of seeds (e.g., CO 2 or steam) (single-step process) or activation of spherical biochar (two-step process).

[0072] As an example, dried seeds were introduced into a horizontal furnace. Nitrogen (N 2 ) flowed through the horizontal furnace at a rate of 300ml / min. After purging the furnace for a few minutes, the seeds were carbonized to 850°C at a heating rate of 5°C / min and maintained at this temperature for 2 hours. Subsequently, the carbonized seeds were weighed to calculate the ...

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Abstract

The smoking article comprises smokeable material and activated carbon particles downstream of said smokeable material. The activated carbon particles are produced from whole seeds. The activated carbon particles have length, width and height. At least two of the length, width and height independently range from about 1 mm to about 7.5 mm. The particles may be spheroids, in which case the length, width and height will be the same or similar.

Description

technical field [0001] The present disclosure relates to smoking articles having activated carbon-containing filters. Background technique [0002] Combustible smoking articles, such as cigarettes, typically have cut tobacco, usually in the form of cut filler, surrounded by a wrapper to form a tobacco rod. A smoker uses a cigarette by lighting one end of the cigarette and burning the tobacco rod. The smoker then receives mainstream smoke by drawing on the opposite or mouth end of the cigarette, which typically contains a filter. The filters are positioned to trap some components of mainstream smoke before it is delivered to the smoker. [0003] Smoking articles have also been proposed in the prior art in which an aerosol-generating substrate, such as tobacco, is heated rather than combusted. In heated smoking articles, the aerosol is generated by heating the aerosol-generating substrate. Known heated smoking articles include, for example, smoking articles in which aeroso...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A24D3/16
CPCA24D3/163A24C5/474A24D1/045A24D3/02A24F7/04B01J20/20B01J20/28004B01J20/28011B01J20/28019B01J20/28064B01J20/28066B01J20/3078B01J20/3085Y02E50/10A24D3/16C01B32/336B01D53/02B01D2253/102B01D2253/304B01D2253/306B01D2253/34B01D2257/408B01D2257/502B01D2257/7022B01D2257/7027C10B49/02C10B53/02
Inventor A·博尼茨G·库德A·L·索拉诺M·A·利洛罗德纳斯A·A·佩雷斯L·C·卡撒诺瓦M·乌兹尼A·J·罗梅罗安纳亚
Owner PHILIP MORRIS PROD SA
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