title: Analysis of organic gas phase compounds formed by hydrothermal liquefaction of Dried Distillers Grains with Solubles.
abstract: This work provides a comprehensive characterization of the gas phase from hydrothermal liquefaction of Dried Distillers Grains with Solubles (DDGS) collected during a 24-h continuous experiment. The gas consisted mainly of CO2, CO, H2, CH4 and C2H6 accounting for 96 v/v% while further analysis by gas chromatography coupled to mass spectrometry (GC-MS) showed additionally 62 compounds of which 54 were tentatively identified. These products included methanethiol, dimethyl sulfide, various olefins and several aromatic compounds. The composition provided clear indication of the steady state of the system. Apart from CO2, olefins were the most abundant compound class and could provide a source of revenue.
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
authors.forename: René B
authors.initials: RB
authors.lastname: Madsen
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
authors.forename: Per S
authors.initials: PS
authors.lastname: Christensen
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
authors.forename: Kasper
authors.initials: K
authors.lastname: Houlberg
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
authors.forename: Elpiniki
authors.initials: E
authors.lastname: Lappa
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
authors.forename: Anders J
authors.initials: AJ
authors.lastname: Mørup
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
authors.forename: Maika
authors.initials: M
authors.lastname: Klemmer
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
authors.forename: Eva M
authors.initials: EM
authors.lastname: Olsen
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
authors.forename: Mads M
authors.initials: MM
authors.lastname: Jensen
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
authors.forename: Jacob
authors.initials: J
authors.lastname: Becker
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark.
authors.forename: Bo B
authors.initials: BB
authors.lastname: Iversen
authors.affiliation: Department of Chemistry and iNANO, Aarhus University, Langelandsgade 140, 8000 Aarhus C, Denmark. Electronic address: glasius@chem.au.dk.
authors.forename: Marianne
authors.initials: M
authors.lastname: Glasius
mesh_terms: D003890:Desiccation; D005740:Gases / Q000032:analysis / Q000138:chemical synthesis*; D006361:Heating / Q000379:methods*; D009930:Organic Chemicals / Q000032:analysis / Q000138:chemical synthesis*; D044367:Phase Transition; D012995:Solubility; D012996:Solutions / Q000138:chemical synthesis; D014867:Water / Q000737:chemistry*; D000067348:Whole Grains / Q000737:chemistry*
chemical_list: D005740:Gases; D009930:Organic Chemicals; D012996:Solutions; D014867:Water
keywords: 24h HTL run; High-value components; Time-resolved gas phase analysis; Trace gas identification