Laser Powered Homogeneous Pyrolysis (LPHP) of Lignin Dispersed into Gas-Phase Article Swipe
Mohamad Barekati-Goudarzi
,
Lavrent Khachatryan
,
Rubik Asatryan
,
Dorin Boldor
,
Bert C. Lynn
·
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.20944/preprints202504.0455.v1
YOU?
·
· 2025
· Open Access
·
· DOI: https://doi.org/10.20944/preprints202504.0455.v1
The gas phase delivery of lignin into the hot zone of cw-CO2 laser powered homogeneous pyrolysis (LPHP) reactor under “wall-less” conditions led to break down of lignin macromolecules into neutral oligomers and paramagnetic fragments deposited onto the reactor cell walls. Formation of PAHs was observed during defragmentation of lignin accelerated with increased laser power. Remarkably, no phenolic compounds were detected among lignin fragments - intermediate radicals and neutral oligomers. It is concluded that the PAH and soot-like conjugated particulates are formed in the hot zone of the LPHP reactor resembling the high temperature combustion processes. The key role of the resonantly stabilized radicals in the formation of low molecular weight PAHs is outlined. An alternative pathway is proposed for generation of PAH involving formation of cyclopentadienyl radical precursors (CPDa) that are adsorbed onto or trapped within lignin macromolecules.
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Metadata
- Type
- preprint
- Language
- en
- Landing Page
- https://doi.org/10.20944/preprints202504.0455.v1
- https://www.preprints.org/frontend/manuscript/dc6c4fa91764155979f5143b68837645/download_pub
- OA Status
- green
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W4409287997
All OpenAlex metadata
Raw OpenAlex JSON
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https://openalex.org/W4409287997Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.20944/preprints202504.0455.v1Digital Object Identifier
- Title
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Laser Powered Homogeneous Pyrolysis (LPHP) of Lignin Dispersed into Gas-PhaseWork title
- Type
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preprintOpenAlex work type
- Language
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enPrimary language
- Publication year
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2025Year of publication
- Publication date
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2025-04-08Full publication date if available
- Authors
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Mohamad Barekati-Goudarzi, Lavrent Khachatryan, Rubik Asatryan, Dorin Boldor, Bert C. LynnList of authors in order
- Landing page
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https://doi.org/10.20944/preprints202504.0455.v1Publisher landing page
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https://www.preprints.org/frontend/manuscript/dc6c4fa91764155979f5143b68837645/download_pubDirect link to full text PDF
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YesWhether a free full text is available
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greenOpen access status per OpenAlex
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https://www.preprints.org/frontend/manuscript/dc6c4fa91764155979f5143b68837645/download_pubDirect OA link when available
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Homogeneous, Pyrolysis, Lignin, Gas phase, Materials science, Phase (matter), Pulp and paper industry, Chemical engineering, Chemistry, Organic chemistry, Thermodynamics, Physics, EngineeringTop concepts (fields/topics) attached by OpenAlex
- Cited by
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0Total citation count in OpenAlex
- Related works (count)
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10Other works algorithmically related by OpenAlex
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