Chemical feedstock recovery via the pyrolysis of electronically heated tobacco wastes

Yejin Choi; Sangjae Jeong; Young Kwon Park; Huijeong Kim; Se Jeong Lim; Gi Jeong Woo; Sumin Pyo; Muhammad Zain Siddiqui; Young Min Kim

doi:10.3390/su132212856

Chemical feedstock recovery via the pyrolysis of electronically heated tobacco wastes

Yejin Choi, Sangjae Jeong, Young Kwon Park, Huijeong Kim, Se Jeong Lim, Gi Jeong Woo, Sumin Pyo, Muhammad Zain Siddiqui, Young Min Kim

School of Environmental Engineering

Research output: Contribution to journal › Article › peer-review

3 Scopus citations

Abstract

The pyrolysis of waste electronically heated tobacco (EHT), consisting of tobacco leaves (TL), a poly-lactic acid (PLA) filter, and a cellulose acetate (CA) filter, was investigated using thermogravimetric (TG) and pyrolyzer–gas chromatography/mass spectrometry (Py-GC/MS) analysis. The pyrolytic properties of waste EHT obtained after smoking were comparable to those of fresh EHT. Although the maximum decomposition temperatures (T_maxS) of waste TL and CA were similar to those of fresh EHT components, the T_max of waste PLA was slightly higher than that of fresh PLA due to smoldering. The T_maxs of PLA and CA were lowered when they were co-pyrolyzed with TL due to interactions between pyrolysis intermediates. The apparent activation energies for the non-isothermal pyrolysis of waste EHT components were higher than those of fresh EHT components. Py-GC/MS analysis results indicated that considerable amounts of chemical feedstocks, such as nicotine and limonene from TL, caprolactone and lactide from PLA, and acetic acid and triacetin from CA, can be recovered by simple pyrolysis of EHT. Co-pyrolysis of TL, PLA, and CA revealed that the experimental amount of lactide was much larger than the calculated value, suggesting its synergistic formation.

Original language	English
Article number	12856
Journal	Sustainability (Switzerland)
Volume	13
Issue number	22
DOIs	https://doi.org/10.3390/su132212856
State	Published - 2 Nov 2021

Keywords

Chemical feedstock
Electronically heated tobacco
Kinetic analysis
Pyrolysis

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.3390/su132212856

Cite this

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title = "Chemical feedstock recovery via the pyrolysis of electronically heated tobacco wastes",

abstract = "The pyrolysis of waste electronically heated tobacco (EHT), consisting of tobacco leaves (TL), a poly-lactic acid (PLA) filter, and a cellulose acetate (CA) filter, was investigated using thermogravimetric (TG) and pyrolyzer–gas chromatography/mass spectrometry (Py-GC/MS) analysis. The pyrolytic properties of waste EHT obtained after smoking were comparable to those of fresh EHT. Although the maximum decomposition temperatures (TmaxS) of waste TL and CA were similar to those of fresh EHT components, the Tmax of waste PLA was slightly higher than that of fresh PLA due to smoldering. The Tmaxs of PLA and CA were lowered when they were co-pyrolyzed with TL due to interactions between pyrolysis intermediates. The apparent activation energies for the non-isothermal pyrolysis of waste EHT components were higher than those of fresh EHT components. Py-GC/MS analysis results indicated that considerable amounts of chemical feedstocks, such as nicotine and limonene from TL, caprolactone and lactide from PLA, and acetic acid and triacetin from CA, can be recovered by simple pyrolysis of EHT. Co-pyrolysis of TL, PLA, and CA revealed that the experimental amount of lactide was much larger than the calculated value, suggesting its synergistic formation.",

keywords = "Chemical feedstock, Electronically heated tobacco, Kinetic analysis, Pyrolysis",

author = "Yejin Choi and Sangjae Jeong and Park, {Young Kwon} and Huijeong Kim and Lim, {Se Jeong} and Woo, {Gi Jeong} and Sumin Pyo and Siddiqui, {Muhammad Zain} and Kim, {Young Min}",

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AU - Choi, Yejin

AU - Jeong, Sangjae

AU - Park, Young Kwon

AU - Kim, Huijeong

AU - Lim, Se Jeong

AU - Woo, Gi Jeong

AU - Pyo, Sumin

AU - Siddiqui, Muhammad Zain

AU - Kim, Young Min

PY - 2021/11/2

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N2 - The pyrolysis of waste electronically heated tobacco (EHT), consisting of tobacco leaves (TL), a poly-lactic acid (PLA) filter, and a cellulose acetate (CA) filter, was investigated using thermogravimetric (TG) and pyrolyzer–gas chromatography/mass spectrometry (Py-GC/MS) analysis. The pyrolytic properties of waste EHT obtained after smoking were comparable to those of fresh EHT. Although the maximum decomposition temperatures (TmaxS) of waste TL and CA were similar to those of fresh EHT components, the Tmax of waste PLA was slightly higher than that of fresh PLA due to smoldering. The Tmaxs of PLA and CA were lowered when they were co-pyrolyzed with TL due to interactions between pyrolysis intermediates. The apparent activation energies for the non-isothermal pyrolysis of waste EHT components were higher than those of fresh EHT components. Py-GC/MS analysis results indicated that considerable amounts of chemical feedstocks, such as nicotine and limonene from TL, caprolactone and lactide from PLA, and acetic acid and triacetin from CA, can be recovered by simple pyrolysis of EHT. Co-pyrolysis of TL, PLA, and CA revealed that the experimental amount of lactide was much larger than the calculated value, suggesting its synergistic formation.

AB - The pyrolysis of waste electronically heated tobacco (EHT), consisting of tobacco leaves (TL), a poly-lactic acid (PLA) filter, and a cellulose acetate (CA) filter, was investigated using thermogravimetric (TG) and pyrolyzer–gas chromatography/mass spectrometry (Py-GC/MS) analysis. The pyrolytic properties of waste EHT obtained after smoking were comparable to those of fresh EHT. Although the maximum decomposition temperatures (TmaxS) of waste TL and CA were similar to those of fresh EHT components, the Tmax of waste PLA was slightly higher than that of fresh PLA due to smoldering. The Tmaxs of PLA and CA were lowered when they were co-pyrolyzed with TL due to interactions between pyrolysis intermediates. The apparent activation energies for the non-isothermal pyrolysis of waste EHT components were higher than those of fresh EHT components. Py-GC/MS analysis results indicated that considerable amounts of chemical feedstocks, such as nicotine and limonene from TL, caprolactone and lactide from PLA, and acetic acid and triacetin from CA, can be recovered by simple pyrolysis of EHT. Co-pyrolysis of TL, PLA, and CA revealed that the experimental amount of lactide was much larger than the calculated value, suggesting its synergistic formation.

KW - Chemical feedstock

KW - Electronically heated tobacco

KW - Kinetic analysis

KW - Pyrolysis

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Chemical feedstock recovery via the pyrolysis of electronically heated tobacco wastes

Abstract

Keywords

UN SDGs

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