The role of solvent soaking and pretreatment temperature in microwave-assisted pyrolysis of waste tea powder: Analysis of products, synergy, pyrolysis index, and reaction mechanism

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dc.contributor.authorTalib Hamzah, H.
dc.contributor.authorSridevi, V.
dc.contributor.authorSeereddi, M.
dc.contributor.authorSuriapparao, D.V.
dc.contributor.authorRamesh, R.
dc.contributor.authorSankar Rao, C.S.
dc.contributor.authorGautam, R.
dc.contributor.authorKaka, F.
dc.contributor.authorPritam, K.
dc.date.accessioned2026-02-04T12:27:32Z
dc.date.issued2022
dc.description.abstractThis study focuses on microwave-assisted pyrolysis (MAP) of fresh waste tea powder and torrefied waste tea powder as feedstocks. Solvents including benzene, acetone, and ethanol were used for soaking feedstocks. The feedstock torrefaction temperature (at 150 °C) and solvents soaking enhanced the yields of char (44.2–59.8 wt%) and the oil (39.8–45.3 wt%) in MAP. Co-pyrolysis synergy induced an increase in the yield of gaseous products (4.7–20.1 wt%). The average heating rate varied in the range of 5–25 °C/min. The energy consumption in MAP of torrefied feedstock (1386 KJ) significantly decreased compared to fresh (3114 KJ). The pyrolysis index dramatically varied with the solvent soaking in the following order: ethanol (26.7) > benzene (25.6) > no solvent (10) > acetone (6). It shows that solvent soaking plays an important role in the pyrolysis process. The obtained bio-oil was composed of mono-aromatics, poly-aromatics, and oxygenated compounds. © 2022 Elsevier Ltd
dc.identifier.citationBioresource Technology, 2022, 363, , pp. -
dc.identifier.issn9608524
dc.identifier.urihttps://doi.org/10.1016/j.biortech.2022.127913
dc.identifier.urihttps://idr.nitk.ac.in/handle/123456789/22337
dc.publisherElsevier Ltd
dc.subjectAcetone
dc.subjectBenzene
dc.subjectEthanol
dc.subjectFeedstocks
dc.subjectOrganic solvents
dc.subjectPyrolysis
dc.subjectMicrowave-assisted pyrolysis
dc.subjectPretreatment temperature
dc.subjectProduct synergies
dc.subjectRole of solvents
dc.subjectSoaking temperature
dc.subjectSynergy
dc.subjectTea powder
dc.subjectTorrefaction
dc.subjectWaste tea
dc.subjectWaste tea powder
dc.subjectEnergy utilization
dc.subjectacetone
dc.subjectalcohol
dc.subjectbenzene
dc.subjectoil
dc.subjectvolatile agent
dc.subjectbiofuel
dc.subjectsolvent
dc.subjectethanol
dc.subjectheating
dc.subjectpyrolysis
dc.subjecttemperature effect
dc.subjectArticle
dc.subjectchemical structure
dc.subjectcombustion
dc.subjectcomparative study
dc.subjectcontrolled study
dc.subjectcool down
dc.subjectenergy consumption
dc.subjectgas
dc.subjectmicrowave assisted extraction
dc.subjectmicrowave radiation
dc.subjectmoisture
dc.subjectparticle size
dc.subjectpowder
dc.subjectreaction analysis
dc.subjecttea
dc.subjecttemperature
dc.subjectthermal conductivity
dc.subjectvaporization
dc.subjectheat
dc.subjectBiofuels
dc.subjectHot Temperature
dc.subjectMicrowaves
dc.subjectPowders
dc.subjectSolvents
dc.subjectTea
dc.subjectTemperature
dc.titleThe role of solvent soaking and pretreatment temperature in microwave-assisted pyrolysis of waste tea powder: Analysis of products, synergy, pyrolysis index, and reaction mechanism

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