High resolution FT-ICR mass spectral analysis of bio-oil and residual water soluble organics produced by hydrothermal liquefaction of the marine microalga Nannochloropsis salina

Nilusha Sudasinghe; Barry Dungan; Peter Lammers; Karl Albrecht; Doug Elliott; Rich Hallen; Tanner Schaub

doi:10.1016/j.fuel.2013.11.019

High resolution FT-ICR mass spectral analysis of bio-oil and residual water soluble organics produced by hydrothermal liquefaction of the marine microalga Nannochloropsis salina

Nilusha Sudasinghe, Barry Dungan, Peter Lammers, Karl Albrecht, Doug Elliott, Rich Hallen, Tanner Schaub

Research output: Contribution to journal › Article › peer-review

167 Scopus citations

Abstract

We report a detailed compositional characterization of a bio-crude oil and aqueous by-product from hydrothermal liquefaction of Nannochloropsis salina by direct infusion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) in both positive- and negative-ionization modes. The FT-ICR MS instrumentation approach facilitates direct assignment of elemental composition to >7000 resolved mass spectral peaks and three-dimensional mass spectral images for individual heteroatom classes highlight compositional diversity of the two samples and provide a baseline description of these materials. Aromatic nitrogen compounds and free fatty acids are predominant species observed in both the bio-oil and aqueous fraction. Residual organic compounds present in the aqueous fraction show distributions that are slightly lower in both molecular ring and/or double bond value and carbon number relative to those found in the bio-oil, albeit with a high degree of commonality between the two compositions.

Original language	English (US)
Pages (from-to)	47-56
Number of pages	10
Journal	Fuel
Volume	119
DOIs	https://doi.org/10.1016/j.fuel.2013.11.019
State	Published - Mar 1 2014
Externally published	Yes

Keywords

Biofuel
FT-ICR MS
Hydrothermal liquefaction
Microalgae
Nannochloropsis

ASJC Scopus subject areas

General Chemical Engineering
Fuel Technology
Energy Engineering and Power Technology
Organic Chemistry

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title = "High resolution FT-ICR mass spectral analysis of bio-oil and residual water soluble organics produced by hydrothermal liquefaction of the marine microalga Nannochloropsis salina",

abstract = "We report a detailed compositional characterization of a bio-crude oil and aqueous by-product from hydrothermal liquefaction of Nannochloropsis salina by direct infusion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) in both positive- and negative-ionization modes. The FT-ICR MS instrumentation approach facilitates direct assignment of elemental composition to >7000 resolved mass spectral peaks and three-dimensional mass spectral images for individual heteroatom classes highlight compositional diversity of the two samples and provide a baseline description of these materials. Aromatic nitrogen compounds and free fatty acids are predominant species observed in both the bio-oil and aqueous fraction. Residual organic compounds present in the aqueous fraction show distributions that are slightly lower in both molecular ring and/or double bond value and carbon number relative to those found in the bio-oil, albeit with a high degree of commonality between the two compositions.",

keywords = "Biofuel, FT-ICR MS, Hydrothermal liquefaction, Microalgae, Nannochloropsis",

author = "Nilusha Sudasinghe and Barry Dungan and Peter Lammers and Karl Albrecht and Doug Elliott and Rich Hallen and Tanner Schaub",

note = "Funding Information: We thank Omar Holguin for helpful discussions. This work was supported by the U.S. Department of Energy under contract DE-EE0003046 awarded to the National Alliance for Advanced Biofuels and Bioproducts , the National Science Foundation ( IIA-1301346 ) and the Center for Animal Health and Food Safety at New Mexico State University . ",

year = "2014",

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doi = "10.1016/j.fuel.2013.11.019",

language = "English (US)",

volume = "119",

pages = "47--56",

journal = "Fuel",

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T1 - High resolution FT-ICR mass spectral analysis of bio-oil and residual water soluble organics produced by hydrothermal liquefaction of the marine microalga Nannochloropsis salina

AU - Sudasinghe, Nilusha

AU - Dungan, Barry

AU - Lammers, Peter

AU - Albrecht, Karl

AU - Elliott, Doug

AU - Hallen, Rich

AU - Schaub, Tanner

N1 - Funding Information: We thank Omar Holguin for helpful discussions. This work was supported by the U.S. Department of Energy under contract DE-EE0003046 awarded to the National Alliance for Advanced Biofuels and Bioproducts , the National Science Foundation ( IIA-1301346 ) and the Center for Animal Health and Food Safety at New Mexico State University .

PY - 2014/3/1

Y1 - 2014/3/1

N2 - We report a detailed compositional characterization of a bio-crude oil and aqueous by-product from hydrothermal liquefaction of Nannochloropsis salina by direct infusion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) in both positive- and negative-ionization modes. The FT-ICR MS instrumentation approach facilitates direct assignment of elemental composition to >7000 resolved mass spectral peaks and three-dimensional mass spectral images for individual heteroatom classes highlight compositional diversity of the two samples and provide a baseline description of these materials. Aromatic nitrogen compounds and free fatty acids are predominant species observed in both the bio-oil and aqueous fraction. Residual organic compounds present in the aqueous fraction show distributions that are slightly lower in both molecular ring and/or double bond value and carbon number relative to those found in the bio-oil, albeit with a high degree of commonality between the two compositions.

AB - We report a detailed compositional characterization of a bio-crude oil and aqueous by-product from hydrothermal liquefaction of Nannochloropsis salina by direct infusion Fourier Transform Ion Cyclotron Resonance Mass Spectrometry (FT-ICR MS) in both positive- and negative-ionization modes. The FT-ICR MS instrumentation approach facilitates direct assignment of elemental composition to >7000 resolved mass spectral peaks and three-dimensional mass spectral images for individual heteroatom classes highlight compositional diversity of the two samples and provide a baseline description of these materials. Aromatic nitrogen compounds and free fatty acids are predominant species observed in both the bio-oil and aqueous fraction. Residual organic compounds present in the aqueous fraction show distributions that are slightly lower in both molecular ring and/or double bond value and carbon number relative to those found in the bio-oil, albeit with a high degree of commonality between the two compositions.

KW - Biofuel

KW - FT-ICR MS

KW - Hydrothermal liquefaction

KW - Microalgae

KW - Nannochloropsis

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High resolution FT-ICR mass spectral analysis of bio-oil and residual water soluble organics produced by hydrothermal liquefaction of the marine microalga Nannochloropsis salina

Abstract

Keywords

ASJC Scopus subject areas

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