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The Multidimensional Chromatography (MDC) Workshop
The Multidimensional Chromatography (MDC) Workshop draws experts in this exciting field to share and discuss their research.
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GC×GC-TOFMS (soft ionization) screening of catalytic pyrolysis wood-oil (Eliane Lazzari, MDCW 2023)

We, 1.11.2023
| Original article from: The Multidimensional Chromatography (MDC) Workshop
Bidimensional gas chromatography (GC×GC) coupled to TOF MS and supported by soft ionization has been exploited for the characterization of volatile and semi-volatile compounds in catalytic pyrolysis wood oil.
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  • Photo: MDCW: GC×GC-TOFMS (soft ionization) screening of catalytic pyrolysis wood-oil (Eliane Lazzari, MDCW 2023)
  • Video: LabRulez: Eliane Lazzari: GC×GC-TOFMS (soft ionization) screening of catalytic pyrolysis wood-oil (MDCW 2023)
  • 🎤 Presenter: Eliane Lazzari¹´², Marco Piparo¹´³, Sabrina Marceau¹ , Giorgia Purcaro⁴, Jean-François Focant², Pierre Giusti¹´³ (¹ TotalEnergies One Tech – R&D – Downstream Processes & Polymers - TotalEnergies Research & Technology Gonfreville, Harfleur, France. ²University of Liege, Liege, Belgium. ³International Joint Laboratory - iC2MC, Harfleur, France. ⁴University of Liège, Gembloux Agro-Bio Tech, University of Liège, Belgium)

💡 Book in your calendar: 15th Multidimensional Chromatography Workshop (MDCW) January 2024

15th Multidimensional Chromatography (MDC) Workshop 2024

Abstract

The use of lignocellulosic biomass to produce chemicals and fuels through pyrolysis has gained increased attention in the last decades due to its abundance, renewable nature, and composition. During biomass pyrolysis, catalytic processes are needed to increase the H:C ratio of the products since oxygen-containing compounds limit the use of the oil as fuel due to its corrosion properties and instability.

Here, bidimensional gas chromatography (GC×GC) coupled to time-of-flight mass spectrometry (TOFMS) and supported by soft ionization has been exploited for the characterization of volatile and semi-volatile compounds in catalytic pyrolysis wood oil. The conventional, nonpolar at 1D and a polar at 2D, column set even promoted a structure-ordered chromatogram, especially in terms of naphthenes and aromatics, the reverse-phase combination allowed to better solve oxygenated compounds, which were previously gathered eluted with neighboring aromatics peaks.

By understanding the soft ionization spectra insights into the structure of phenol monomers were achieved and a group-type analysis was obtained thanks to the detection of the molecular ion by photoionization (PI). A range of aromatics (mono; di; tri) and naphthenes have been identified in wood-derived oil and the presence of phenols was readily different in bio-oils derived from catalytic pyrolysis processes.

This approach allowed explaining the bio-oil composition and checking the efficiency of catalytic pyrolysis that has been applied to reducing the concentration of the oxygenated compound and obtaining a biofuel that could be used as an alternative to fossil-based fuels.

The Multidimensional Chromatography (MDC) Workshop
 

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