BIOM ETHAN ATI ON UNDER ELEVATED PRESSURE

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN

TADATSUGU OKUMURA¹  OSAMU ARIGA¹  TAKESHI KOBAYASHI¹  MASAHITO TAYA¹ 

[1] Department of Chemical Engineering, Faculty of Engineering, Nagoya University

关键词: Biochemical Engineering;    Methane Production;    Elevated Pressure;    Medium pH Control;   

DOI  :  10.1252/jcej.17.577

来源: Maruzen Company Ltd

【 摘 要 】

References(28)Cited-By(3)As H2 and CO2 can be utilized by methanogenic bacteria, as well as volatile fatty acids such as formic acid, biomethanations of the gaseous substrates and formic acid were carried out under elevated pressure. The pH of the medium was adjusted to the appropriate value for the methanogenic bacteria (pH 6.8) by changing the amount of Na2CO3 added to the medium. Biomethanation was not inhibited by elevated partial pressure of the gaseous substrates in the absence of mass transfer limitation of H2, nor retarded by elevated pressure when formic acid was used as a carbon source. However, the amount of methane evolved from CO2 and H2 for 3 days under 101 kPa decreased to 25 % compared with that under 355 kPa in the presence of the mass transfer limitation of H2. This effect is explained by the mass transfer model.

【 授权许可】

Unknown