New insight into the contributions of thermogenic processes and biogenic sources to the generation of organic compounds in hydrothermal fluids
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32
摘要:
Experiments on hydrothermal degradation of Pyrococcus abyssi biomass were conducted at elevated pressure (40 MPa) over a 200–450 °C temperature range in sapphire reaction cells. Few organic compounds could be detected in the 200 °C experiment. This lack was attributed to an incomplete degradation of P. abyssi cells. On the contrary, a wide range of soluble organic molecules were generated at temperatures ≥350 °C including toluene, styrene, C8–C16 alkyl-benzenes, naphthalene, C11–C16 alkyl-naphthalenes, even carbon number C12–C18 polycyclic aromatic hydrocarbons, C15–C18 alkyl-phenanthrenes and C8:0–C16:0 n-carboxylic acids. The effect of time on the final organic composition of the degraded P. abyssi solutions at 350 °C was also investigated. For that purpose the biomass was exposed for 10, 20, 60,
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关键词:
General Earth and Planetary Sciences Ecology Evolution Behavior and Systematics General Environmental Science
DOI:
10.1111/j.1472-4669.2010.00260.x
被引量:
年份:
2010
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