Bio-oils from Vacuum Ablative Pyrolysis of Torrefied Tobacco Residues

Overview

Journal RSC Adv

Publisher Royal Society of Chemistry

Specialty Chemistry

Date 2022 May 6

PMID 35515664

Authors

Nattawut Khuenkaeo

Blake MacQueen

Thossaporn Onsree

Sangu Daiya

Nakorn Tippayawong

Jochen Lauterbach

Affiliations

Soon will be listed here.

Abstract

Fast pyrolysis, in combination with torrefaction pretreatment, was used to convert tobacco residues to value-added bio-fuels and chemicals. Tobacco plant residues were torrefied at 220, 260, and 300 °C, before being pyrolyzed at 450, 500, 550, and 600 °C in a rotating blade ablative reactor under vacuum conditions to test the effects on product yields. With torrefaction, tobacco residues thermally decomposed 20-25% w/w at low temperatures. Torrefaction and pyrolysis temperatures were found to markedly affect pyrolytic product yields of bio-chars and bio-oils, while having no effect on gas-phase products. Bio-oil yields exhibited a direct relation with pyrolysis temperature and an inverse relation with torrefaction temperature. Bio-oils produced were separated into light and heavy oils and analyzed by GC-MS, and H and C NMR. Nicotine was found to be the main compound in the light and heavy oils along with several phenols and cresols in the heavy oil.

Citing Articles

Compositional analysis of bio-oils from hydrothermal liquefaction of tobacco residues using two-dimensional gas chromatography and time-of-flight mass spectrometry.

Phromphithak S, Onsree T, Saengsuriwong R, Tippayawong N Sci Prog. 2021; 104(4):368504211064486.

PMID: 34935550 PMC: 10358540. DOI: 10.1177/00368504211064486.

Production and characterization of bio-oils from fast pyrolysis of tobacco processing wastes in an ablative reactor under vacuum.

Khuenkaeo N, Phromphithak S, Onsree T, Raza Naqvi S, Tippayawong N PLoS One. 2021; 16(7):e0254485.

PMID: 34270603 PMC: 8284650. DOI: 10.1371/journal.pone.0254485.

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