Matches in SemOpenAlex for { <https://semopenalex.org/work/W2003307086> ?p ?o ?g. }
Showing items 1 to 100 of
100
with 100 items per page.
- W2003307086 endingPage "410" @default.
- W2003307086 startingPage "401" @default.
- W2003307086 abstract "Polycyclic aromatic hydrocarbons (PAH) are found at high concentrations in thermally altered organic matter and hydrothermally generated petroleum from sediment-covered seafloor hydro-thermal systems. To better understand the factors controlling the occurrence of PAH in thermally altered environments, the reactivities of two PAH, phenanthrene and anthracene, were investigated in hydrothermal experiments. The compounds were heated with water at 330 degrees C in sealed reaction vessels for durations ranging from 1 to 17 days. Iron oxide and sulfide minerals, formic acid, or sodium for-mate were included in some experiments to vary conditions within the reaction vessel. Phenanthrene was unreactive both in water alone and in the presence of minerals for up to 17 days, while anthracene was partially hydrogenated (5-10%) to di- and tetrahydroanthracene. In the presence of 6-21 vol % formic acid, both phenanthrene and anthracene reacted extensively to form hydrogenated and minor methylated derivatives, with the degree of hydrogenation and methylation increasing with the amount of formic acid. Phenanthrene was slightly hydrogenated in sodium formate solutions. The hydrogenation reactions could be readily reversed; heating a mixture of polysaturated phenanthrenes resulted in extensive dehydrogenation (aromatization) after 3 days at 330 degrees C. While the experiments demonstrate that reaction pathways for the hydrogenation of PAH under hydrothermal conditions exist, the reactions apparently require higher concentrations of H2 than are typical of geologic settings. The experiments provide additional evidence that PAH may be generated in hydrothermal systems from progressive aromatization and dealkylation of biologically derived polycyclic precursors such as steroids and terpenoids. Furthermore, the results indicate that PAH initially present in sediments or formed within hydrothermal systems are resistant to further thermal degradation during hydrothermal alteration." @default.
- W2003307086 created "2016-06-24" @default.
- W2003307086 creator A5007970581 @default.
- W2003307086 creator A5083615083 @default.
- W2003307086 creator A5086168773 @default.
- W2003307086 date "1999-01-15" @default.
- W2003307086 modified "2023-10-18" @default.
- W2003307086 title "Hydrous Pyrolysis of Polycyclic Aromatic Hydrocarbons and Implications for the Origin of PAH in Hydrothermal Petroleum" @default.
- W2003307086 cites W1603554135 @default.
- W2003307086 cites W1965184671 @default.
- W2003307086 cites W1990361856 @default.
- W2003307086 cites W1997729022 @default.
- W2003307086 cites W2000463352 @default.
- W2003307086 cites W2001570106 @default.
- W2003307086 cites W2012919950 @default.
- W2003307086 cites W2019721332 @default.
- W2003307086 cites W2022678446 @default.
- W2003307086 cites W2045951612 @default.
- W2003307086 cites W2054261438 @default.
- W2003307086 cites W2055022785 @default.
- W2003307086 cites W2057274239 @default.
- W2003307086 cites W2057684041 @default.
- W2003307086 cites W2078725207 @default.
- W2003307086 cites W2084728071 @default.
- W2003307086 cites W2090170842 @default.
- W2003307086 cites W2093272502 @default.
- W2003307086 cites W2111473359 @default.
- W2003307086 doi "https://doi.org/10.1021/ef980089i" @default.
- W2003307086 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/11762446" @default.
- W2003307086 hasPublicationYear "1999" @default.
- W2003307086 type Work @default.
- W2003307086 sameAs 2003307086 @default.
- W2003307086 citedByCount "45" @default.
- W2003307086 countsByYear W20033070862012 @default.
- W2003307086 countsByYear W20033070862013 @default.
- W2003307086 countsByYear W20033070862014 @default.
- W2003307086 countsByYear W20033070862015 @default.
- W2003307086 countsByYear W20033070862016 @default.
- W2003307086 countsByYear W20033070862017 @default.
- W2003307086 countsByYear W20033070862018 @default.
- W2003307086 countsByYear W20033070862020 @default.
- W2003307086 countsByYear W20033070862021 @default.
- W2003307086 countsByYear W20033070862022 @default.
- W2003307086 countsByYear W20033070862023 @default.
- W2003307086 crossrefType "journal-article" @default.
- W2003307086 hasAuthorship W2003307086A5007970581 @default.
- W2003307086 hasAuthorship W2003307086A5083615083 @default.
- W2003307086 hasAuthorship W2003307086A5086168773 @default.
- W2003307086 hasConcept C107872376 @default.
- W2003307086 hasConcept C119889771 @default.
- W2003307086 hasConcept C127313418 @default.
- W2003307086 hasConcept C156622251 @default.
- W2003307086 hasConcept C161790260 @default.
- W2003307086 hasConcept C165205528 @default.
- W2003307086 hasConcept C178790620 @default.
- W2003307086 hasConcept C179104552 @default.
- W2003307086 hasConcept C185592680 @default.
- W2003307086 hasConcept C2776891815 @default.
- W2003307086 hasConcept C2777207669 @default.
- W2003307086 hasConcept C2777379063 @default.
- W2003307086 hasConcept C2779325354 @default.
- W2003307086 hasConcept C2779563022 @default.
- W2003307086 hasConcept C2911145106 @default.
- W2003307086 hasConceptScore W2003307086C107872376 @default.
- W2003307086 hasConceptScore W2003307086C119889771 @default.
- W2003307086 hasConceptScore W2003307086C127313418 @default.
- W2003307086 hasConceptScore W2003307086C156622251 @default.
- W2003307086 hasConceptScore W2003307086C161790260 @default.
- W2003307086 hasConceptScore W2003307086C165205528 @default.
- W2003307086 hasConceptScore W2003307086C178790620 @default.
- W2003307086 hasConceptScore W2003307086C179104552 @default.
- W2003307086 hasConceptScore W2003307086C185592680 @default.
- W2003307086 hasConceptScore W2003307086C2776891815 @default.
- W2003307086 hasConceptScore W2003307086C2777207669 @default.
- W2003307086 hasConceptScore W2003307086C2777379063 @default.
- W2003307086 hasConceptScore W2003307086C2779325354 @default.
- W2003307086 hasConceptScore W2003307086C2779563022 @default.
- W2003307086 hasConceptScore W2003307086C2911145106 @default.
- W2003307086 hasIssue "2" @default.
- W2003307086 hasLocation W20033070861 @default.
- W2003307086 hasLocation W20033070862 @default.
- W2003307086 hasOpenAccess W2003307086 @default.
- W2003307086 hasPrimaryLocation W20033070861 @default.
- W2003307086 hasRelatedWork W1578186933 @default.
- W2003307086 hasRelatedWork W1602866571 @default.
- W2003307086 hasRelatedWork W1782533384 @default.
- W2003307086 hasRelatedWork W1987484687 @default.
- W2003307086 hasRelatedWork W2003307086 @default.
- W2003307086 hasRelatedWork W2053618800 @default.
- W2003307086 hasRelatedWork W2064006974 @default.
- W2003307086 hasRelatedWork W2116259913 @default.
- W2003307086 hasRelatedWork W2143451502 @default.
- W2003307086 hasRelatedWork W62903774 @default.
- W2003307086 hasVolume "13" @default.
- W2003307086 isParatext "false" @default.
- W2003307086 isRetracted "false" @default.
- W2003307086 magId "2003307086" @default.
- W2003307086 workType "article" @default.