Lipase-catalyzed long chain fatty ester synthesis in dense carbon dioxide: Kinetics and thermodynamics

2007 ◽  
Vol 41 (1) ◽  
pp. 92-101 ◽  
Author(s):  
Chiara Giulia Laudani ◽  
Maja Habulin ◽  
Željko Knez ◽  
Giovanna Della Porta ◽  
Ernesto Reverchon
Keyword(s):  
Carbon Dioxide ◽  
Fatty Ester ◽  
Ester Synthesis ◽  
Kinetics And Thermodynamics ◽  
Dense Carbon Dioxide ◽  
Long Chain

Exploiting the pressure effect on lipase-catalyzed wax ester synthesis in dense carbon dioxide

2007 ◽  
Vol 97 (6) ◽  
pp. 1366-1375 ◽  
Author(s):  
Željko Knez ◽  
Chiara Giulia Laudani ◽  
Maja Habulin ◽  
Ernesto Reverchon
Keyword(s):  
Carbon Dioxide ◽  
Pressure Effect ◽  
Wax Ester ◽  
Ester Synthesis ◽  
Dense Carbon Dioxide

Consequences of CO2 solubility for hydrate formation from carbon dioxide containing water and other impurities

2014 ◽  
Vol 16 (18) ◽  
pp. 8623-8638 ◽  
Author(s):  
Bjørn Kvamme ◽  
Tatiana Kuznetsova ◽  
Bjørnar Jensen ◽  
Sigvat Stensholt ◽  
Jordan Bauman ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Water Content ◽  
Upper Bound ◽  
Hydrate Formation ◽  
Pipeline Transport ◽  
Co2 Solubility ◽  
Complex Issue ◽  
Dense Carbon Dioxide

Deciding on the upper bound of water content permissible in a stream of dense carbon dioxide under pipeline transport conditions without facing the risks of hydrate formation is a complex issue.

Synthesis of Large-Size Diamonds by Reduction of Dense Carbon Dioxide with Alkali Metals (K, Li)

2004 ◽  
Vol 108 (14) ◽  
pp. 4239-4241 ◽  
Author(s):  
Zhengsong Lou ◽  
Qianwang Chen ◽  
Yufeng Zhang ◽  
Yitai Qian ◽  
Wei Wang
Keyword(s):  
Carbon Dioxide ◽  
Alkali Metals ◽  
Large Size ◽  
Dense Carbon Dioxide

scholarly journals A methylotrophic origin of methanogenesis and early divergence of anaerobic multicarbon alkane metabolism

2021 ◽  
Vol 7 (27) ◽  
pp. eabj1453
Author(s):  
Yinzhao Wang ◽  
Gunter Wegener ◽  
Tom A. Williams ◽  
Ruize Xie ◽  
Jialin Hou ◽  
...  
Keyword(s):  
Carbon Dioxide ◽  
Energy Conservation ◽  
Life Forms ◽  
Short Chain ◽  
Present Evidence ◽  
Origin And Evolution ◽  
Ancestral Form ◽  
Climate Stability ◽  
Long Chain

Methanogens are considered as one of the earliest life forms on Earth, and together with anaerobic methane-oxidizing archaea, they have crucial effects on climate stability. However, the origin and evolution of anaerobic alkane metabolism in the domain Archaea remain controversial. Here, we present evidence that methylotrophic methanogenesis was the ancestral form of this metabolism. Carbon dioxide–reducing methanogenesis developed later through the evolution of tetrahydromethanopterin S-methyltransferase, which linked methanogenesis to the Wood-Ljungdahl pathway for energy conservation. Anaerobic multicarbon alkane metabolisms in Archaea also originated early, with genes coding for the activation of short-chain or even long-chain alkanes likely evolving from an ethane-metabolizing ancestor. These genes were likely horizontally transferred to multiple archaeal clades including Candidatus (Ca.) Bathyarchaeia, Ca. Lokiarchaeia, Ca. Hadarchaeia, and the methanogenic Ca. Methanoliparia.

Polyethylene glycol radical-initiated aerobic propargylic oxidation in dense carbon dioxide

2013 ◽  
Vol 22 (3) ◽  
pp. 363-367 ◽  
Author(s):  
Zhenfeng Diao ◽  
Bin Li ◽  
Bing Yu ◽  
Anhua Liu ◽  
Liangnian He
Keyword(s):  
Carbon Dioxide ◽  
Polyethylene Glycol ◽  
Dense Carbon Dioxide
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