Covalent immobilization of catalase onto spacer-arm attached modified florisil: Characterization and application to batch and plug-flow type reactor systems

2011 ◽  
Vol 49 (6-7) ◽  
pp. 547-554 ◽  
Author(s):  
Özlem Alptekin ◽  
S. Seyhan Tükel ◽  
Deniz Yildirim ◽  
Dilek Alagöz
Keyword(s):  
Plug Flow ◽  
Covalent Immobilization ◽  
Type Reactor ◽  
Flow Type ◽  
Spacer Arm

Plug-flow type reactor versus tank reactor

1964 ◽  
Vol 19 (12) ◽  
pp. 994-996 ◽  
Author(s):  
J.G. van de Vusse
Keyword(s):  
Plug Flow ◽  
Tank Reactor ◽  
Type Reactor ◽  
Flow Type

Inclined-plug-flow type reactor for anaerobic digestion of semi-solid waste

2000 ◽  
Vol 65 (1-4) ◽  
pp. 173-185 ◽  
Author(s):  
V.K Sharma ◽  
C Testa ◽  
G Lastella ◽  
G Cornacchia ◽  
M.P Comparato
Keyword(s):  
Anaerobic Digestion ◽  
Solid Waste ◽  
Plug Flow ◽  
Type Reactor ◽  
Flow Type ◽  
Semi Solid

Bacterial community dynamics in an anaerobic plug-flow type bioreactor treating swine manure

2009 ◽  
Vol 43 (1) ◽  
pp. 21-32 ◽  
Author(s):  
Caroline S. Roy ◽  
Guylaine Talbot ◽  
Edward Topp ◽  
Carole Beaulieu ◽  
Marie-France Palin ◽  
...  
Keyword(s):  
Bacterial Community ◽  
Community Dynamics ◽  
Plug Flow ◽  
Swine Manure ◽  
Flow Type ◽  
Bacterial Community Dynamics

Hydrogenation of Dicyclopentadiene in the Presence of a Nickel Catalyst Supported onto a Cation Exchanger in a Flow-Type Reactor

2018 ◽  
Vol 59 (4) ◽  
pp. 444-449 ◽  
Author(s):  
Yu. V. Popov ◽  
V. M. Mokhov ◽  
D. N. Nebykov ◽  
S. E. Latyshova ◽  
K. V. Shcherbakova ◽  
...  
Keyword(s):  
Nickel Catalyst ◽  
Cation Exchanger ◽  
Type Reactor ◽  
Flow Type

Studying the Steam Cracking of Heavy Oil over Iron- and Molybdenum-Containing Dispersed Catalysts in a Flow-Type Reactor

2018 ◽  
Vol 10 (4) ◽  
pp. 344-352 ◽  
Author(s):  
R. G. Kukushkin ◽  
P. M. Eletskii ◽  
O. O. Zaikina ◽  
G. A. Sosnin ◽  
O. A. Bulavchenko ◽  
...  
Keyword(s):  
Heavy Oil ◽  
Type Reactor ◽  
Flow Type ◽  
Dispersed Catalysts ◽  
Steam Cracking

Spatial distribution of some microbial trophic groups in a plug-flow-type anaerobic bioreactor treating swine manure

2010 ◽  
Vol 61 (5) ◽  
pp. 1147-1155 ◽  
Author(s):  
Guylaine Talbot ◽  
Caroline S. Roy ◽  
Edward Topp ◽  
Martin L. Kalmokoff ◽  
Stephen P. J. Brooks ◽  
...  
Keyword(s):  
Spatial Distribution ◽  
Plug Flow ◽  
Swine Manure ◽  
Trophic Groups ◽  
Phylogenetic Groups ◽  
Multivariate Statistical ◽  
Anaerobic Bioreactor ◽  
Methanogenic Activity ◽  
Flow Type ◽  
Sequential Digestion

Anaerobic digestion of swine manure is carried out by a consortium of microbial species, including volatile fatty acid (VFA) producers, VFA-degraders and methanogens. The distribution of five phylogenetic groups within a plug-flow-type anaerobic bioreactor consisting of eight serially-connected tanks was examined through the sequential digestion of swine manure. Quantification was carried out using reverse transcription real-time PCR (RT-Q-PCR) assays targeting the 16S rRNA of Clostridium (cluster XIVa), Peptostreptococcus, Syntrophomonas, Methanosaeta, and Methanosarcina spp. The VFA producers Peptostreptococcus spp. and Clostridium spp. were found predominantly in compartments where hydrolysis/acidogenesis took place. The spatial distribution of the aceticlastic methanogens, Methanosaeta and Methanosarcina, within the bioreactor was not correlated with methanogenic activity. In contrast the VFA-degrading genus Syntrophomonas spp. was more abundant in compartments with elevated methanogenic activity. Multivariate statistical analyses of the RT-Q-PCR data have provided new insights into our understanding of how the various trophic groups were distributed within this bioreactor system. While the distribution of clostridia, peptostreptococci and Syntrophomonas corresponded to their known metabolic functions, aceticlastic methanogens were not apparently linked to the methanogenesis stage occurring in latter compartments, suggesting that hydrogenotrophic methanogens were the primary methane generators in this bioreactor. However, aceticlastic methanogens could be involved in compartments related to the hydrolysis/acidogenesis stage.

scholarly journals Hydrogenation of Aqueous Acetic Acid over Ru-Sn/TiO2 Catalyst in a Flow-Type Reactor, Governed by Reverse Reaction

Catalysts ◽  
2020 ◽  
Vol 10 (11) ◽  
pp. 1270
Author(s):  
Yuanyuan Zhao ◽  
Kansei Konishi ◽  
Eiji Minami ◽  
Shiro Saka ◽  
Haruo Kawamoto
Keyword(s):  
Acetic Acid ◽  
Ethanol Yield ◽  
Batch Process ◽  
Gas Production ◽  
Reverse Reaction ◽  
Side Reactions ◽  
Aqueous Acetic Acid ◽  
Type Reactor ◽  
Flow Type ◽  
Batch Type

Ru-Sn/TiO2 is an effective catalyst for hydrogenation of aqueous acetic acid to ethanol. In this paper, a similar hydrogenation process was investigated in a flow-type rather than a batch-type reactor. The optimum temperature was 170 °C for the batch-type reactor because of gas production at higher temperatures; however, for the flow-type reactor, the ethanol yield increased with reaction temperature up to 280 °C and then decreased sharply above 300 °C, owing to an increase in the acetic acid recovery rate. The selectivity for ethanol formation was improved over the batch process, and an ethanol yield of 98 mol % was achieved for a 6.7 min reaction (cf. 12 h for batch) (liquid hourly space velocity: 1.23 h−1). Oxidation of ethanol to acetic acid (i.e., the reverse reaction) adversely affected the hydrogenation. On the basis of these results, hydrogenation mechanisms that include competing side reactions are discussed in relation to the reactor type. These results will help the development of more efficient catalytic procedures. This method was also effectively applied to hydrogenation of lactic acid to propane-1,2-diol.

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