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Mase C, Maillard JF, Piparo M, Friederici L, Rüger CP, Marceau S, Paupy B, Hubert-Roux M, Afonso C, Giusti P. GC-FTICR mass spectrometry with dopant assisted atmospheric pressure photoionization: application to the characterization of plastic pyrolysis oil. Analyst 2023; 148:5221-5232. [PMID: 37724415 DOI: 10.1039/d3an01246h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
Pyrolysis is a promising way to convert plastic waste into valuable resources. However, for downstream upgrading processes, many undesirable species, such as conjugated diolefins or heteroatom-containing compounds, can be generated during this pyrolysis. In-depth chemical characterization is therefore required to improve conversion and valorization. Because of the high molecular diversity found in these samples, advanced analytical instrumentation is needed to provide accurate and complete characterization. Generally, direct infusion Fourier transform mass spectrometry is used to gather information at the molecular level, but it has the disadvantage of limited structural insights. To overcome this drawback, gas chromatography has been coupled to Fourier transform ion cyclotron resonance mass spectrometry. By taking advantage of soft atmospheric pressure photoionization, which preserves molecular information, and the use of different dopants (pyrrole, toluene, and benzene), selective ionization of different chemical families was achieved. Differences in the ionization energy of the dopants will only allow the ionization of the molecules of the pyrolysis oil which have lower ionization energy, or which are accessible via specific chemical ionization pathways. With a selective focus on hydrocarbon species and especially hydrocarbon species having a double bond equivalent (DBE) value of 2, pyrrole is prone to better ionize low-mass molecules with lower retention times compared to the dopant benzene, which allowed better ionization of high-mass molecules with higher retention times. The toluene dopant presented the advantage of ionizing both low and high mass molecules.
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Affiliation(s)
- Charlotte Mase
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3M FR 3038, F-76000 Rouen, France.
- TotalEnergies OneTech, Total Research and Technology Gonfreville TRTG, BP 27, 76700 Harfleur, France
- International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, BP 27, 76700 Harfleur, France
| | - Julien F Maillard
- TotalEnergies OneTech, Total Research and Technology Gonfreville TRTG, BP 27, 76700 Harfleur, France
- International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, BP 27, 76700 Harfleur, France
| | - Marco Piparo
- TotalEnergies OneTech, Total Research and Technology Gonfreville TRTG, BP 27, 76700 Harfleur, France
- International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, BP 27, 76700 Harfleur, France
| | - Lukas Friederici
- Joint Mass Spectrometry Centre/Chair of Analytical Chemistry, University of Rostock, Albert-Einstein-Straße 27, 18059 Rostock, Germany
| | - Christopher P Rüger
- International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, BP 27, 76700 Harfleur, France
- Joint Mass Spectrometry Centre/Chair of Analytical Chemistry, University of Rostock, Albert-Einstein-Straße 27, 18059 Rostock, Germany
| | - Sabrina Marceau
- TotalEnergies OneTech, Total Research and Technology Gonfreville TRTG, BP 27, 76700 Harfleur, France
- International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, BP 27, 76700 Harfleur, France
| | - Benoit Paupy
- TotalEnergies OneTech, Total Research and Technology Gonfreville TRTG, BP 27, 76700 Harfleur, France
- International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, BP 27, 76700 Harfleur, France
| | - Marie Hubert-Roux
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3M FR 3038, F-76000 Rouen, France.
- International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, BP 27, 76700 Harfleur, France
| | - Carlos Afonso
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3M FR 3038, F-76000 Rouen, France.
- International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, BP 27, 76700 Harfleur, France
| | - Pierre Giusti
- Univ Rouen Normandie, INSA Rouen Normandie, CNRS, Normandie Univ, COBRA UMR 6014, INC3M FR 3038, F-76000 Rouen, France.
- TotalEnergies OneTech, Total Research and Technology Gonfreville TRTG, BP 27, 76700 Harfleur, France
- International Joint Laboratory - iC2MC: Complex Matrices Molecular Characterization, TRTG, BP 27, 76700 Harfleur, France
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García-Bellido J, Freije-Carrelo L, Redondo-Velasco M, Piparo M, Zoccali M, Mondello L, Moldovan M, Bouyssiere B, Giusti P, Encinar JR. Potential of GC-Combustion-MS as a Powerful and Versatile Nitrogen-Selective Detector in Gas Chromatography. Anal Chem 2023; 95:11761-11768. [PMID: 37490591 PMCID: PMC10413323 DOI: 10.1021/acs.analchem.3c01943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2023] [Accepted: 07/17/2023] [Indexed: 07/27/2023]
Abstract
Here, we show the potential and applicability of the novel GC-combustion-MS approach as a nitrogen-selective GC detector. Operating requirements to achieve reproducible and compound-independent formation of volatile NO species as a selective N-signal during the combustion step are described. Specifically, high temperatures (≥1000 °C) and post-column O2 flows (0.4 mL min-1 of 0.3% O2 in He) turned out to be necessary when using a vertical oven without makeup flow (prototype #1). In contrast, the use of a horizontal oven with 1.7 mL min-1 He as an additional makeup flow (prototype #2) required milder conditions (850 °C and 0.2 mL min-1). A detection limit of 0.02 pg of N injected was achieved, which is by far the lowest ever reported for any GC detector. Equimolarity, linearity, and peak shape were also adequate. Validation of the approach was performed by the analysis of a certified reference material obtaining accurate (2% error) and precise (2% RSD) results. Robustness was tested with the analysis of two complex samples with different matrices (diesel and biomass pyrolysis oil) and N concentration levels. Total N determined after the integration of the whole chromatograms (524 ± 22 and 11,140 ± 330 μg N g-1, respectively) was in good agreement with the reference values (497 ± 10 and 11,000 ± 1200 μg N g-1, respectively). In contrast, GC-NCD results were lower for the diesel sample (394 ± 42 μg N g-1). Quantitative values for the individual and families of N species identified in the real samples by parallel GC-MS and additional GC × GC-MS analyses were also obtained using a single generic internal standard.
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Affiliation(s)
- Javier García-Bellido
- Department
of Physical and Analytical Chemistry, University
of Oviedo, 33006 Oviedo, Spain
| | - Laura Freije-Carrelo
- TotalEnergies
One Tech Belgium, Zone
Industrielle C, 7181 Feluy, Belgium
- International
Joint Laboratory—iC2MC: Complex Matrices Molecular Characterization,
TRTG, 76700 Harfleur, France
| | | | - Marco Piparo
- International
Joint Laboratory—iC2MC: Complex Matrices Molecular Characterization,
TRTG, 76700 Harfleur, France
- TotalEnergies,
TotalEnergies Research & Technology Gonfreville, 76700 Harfleur, France
| | - Mariosimone Zoccali
- Department
of Mathematical and Computer Science, Physical Sciences and Earth
Sciences, University of Messina, 98168 Messina, Italy
| | - Luigi Mondello
- Department
of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, 98168 Messina, Italy
- Chromaleont
s.r.l., c/o Department of Chemical, Biological, Pharmaceutical and
Environmental Sciences, University of Messina, 98168 Messina, Italy
| | - Mariella Moldovan
- Department
of Physical and Analytical Chemistry, University
of Oviedo, 33006 Oviedo, Spain
| | - Brice Bouyssiere
- International
Joint Laboratory—iC2MC: Complex Matrices Molecular Characterization,
TRTG, 76700 Harfleur, France
- Universite
de Pau et des Pay de l’Adour, E2S UPPA CNRS, IPREM, Institut des Sciences Analytiques et de Physico-chimie
pour l’Environnement et les Matériaux UMR5254, 64053 Pau, France
| | - Pierre Giusti
- International
Joint Laboratory—iC2MC: Complex Matrices Molecular Characterization,
TRTG, 76700 Harfleur, France
- TotalEnergies,
TotalEnergies Research & Technology Gonfreville, 76700 Harfleur, France
| | - Jorge Ruiz Encinar
- Department
of Physical and Analytical Chemistry, University
of Oviedo, 33006 Oviedo, Spain
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Analysis of Fuel Alternative Products Obtained by the Pyrolysis of Diverse Types of Plastic Materials Isolated from a Dumpsite Origin in Pakistan. Polymers (Basel) 2022; 15:polym15010024. [PMID: 36616375 PMCID: PMC9823855 DOI: 10.3390/polym15010024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2022] [Revised: 12/09/2022] [Accepted: 12/15/2022] [Indexed: 12/24/2022] Open
Abstract
The current energy crisis and waste management problems have compelled people to find alternatives to conventional non-renewable fuels and utilize waste to recover energy. Pyrolysis of plastics, which make up a considerable portion of municipal and industrial waste, has emerged as a feasible resolution to both satisfy our energy needs and mitigate the issue of plastic waste. This study was therefore conducted to find a solution for plastic waste management problems, as well as to find an alternative to mitigate the current energy crisis. Pyrolysis of five of the most commonly used plastics, polyethylene terephthalate (PET), high- and low-density polyethylene (HDPE, LDPE), polypropylene (PP), and polystyrene (PS), was executed in a pyrolytic reactor designed utilizing a cylindrical shaped stainless steel container with pressure and temperature gauges and a condenser to cool down the hydrocarbons produced. The liquid products collected were highly flammable and their chemical properties revealed them as fuel alternatives. Among them, the highest yield of fuel conversion (82%) was observed for HDPE followed by PP, PS, LDPE, PS, and PET (61.8%, 58.0%, 50.0%, and 11.0%, respectively). The calorific values of the products, 46.2, 46.2, 45.9, 42.8 and 42.4 MJ/kg for LPDE, PP, HPDE, PS, and PET, respectively, were comparable to those of diesel and gasoline. Spectroscopic and chromatographic analysis proved the presence of alkanes and alkenes with carbon number ranges of C9-C15, C9-C24, C10-C21, C10-C28, and C9-C17 for PP, PET, HDPE, LDPE, and PS, respectively. If implemented, the study will prove to be beneficial and contribute to mitigating the major energy and environmental issues of developing countries, as well as enhance entrepreneurship opportunities by replicating the process at small-scale and industrial levels.
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