Two-stage in situ gas stripping for enhanced butanol fermentation and energy-saving product recovery

2013 ◽  
Vol 135 ◽  
pp. 396-402 ◽  
Author(s):  
Chuang Xue ◽  
Jingbo Zhao ◽  
Fangfang Liu ◽  
Congcong Lu ◽  
Shang-Tian Yang ◽  
...  
Keyword(s):  
Energy Saving ◽  
Product Recovery ◽  
Gas Stripping ◽  
Two Stage ◽  
Butanol Fermentation

scholarly journals Impacts of Initial Sugar, Nitrogen and Calcium Carbonate on Butanol Fermentation from Sugarcane Molasses by Clostridium beijerinckii

Energies ◽  
2020 ◽  
Vol 13 (3) ◽  
pp. 694 ◽  
Author(s):  
Patthranit Narueworanon ◽  
Lakkana Laopaiboon ◽  
Niphaphat Phukoetphim ◽  
Pattana Laopaiboon
Keyword(s):  
Calcium Carbonate ◽  
Low Cost ◽  
Nitrogen Sources ◽  
Clostridium Beijerinckii ◽  
Sugarcane Molasses ◽  
Butanol Production ◽  
Gas Stripping ◽  
Box Behnken Design ◽  
Butanol Fermentation

Low-cost nitrogen sources, i.e., dried spent yeast (DSY), rice bran (RB), soybean meal (SM), urea and ammonium sulfate were used for batch butanol fermentation from sugarcane molasses by Clostridium beijerinckii TISTR 1461 under anaerobic conditions. Among these five low-cost nitrogen sources, DSY at 1.53 g/L (nitrogen content equal to that of 1 g/L of yeast extract) was found to be the most suitable. At an initial sugar level of 60 g/L, the maximum butanol concentration (PB), productivity (QB) and yield (YB/S) were 11.19 g/L, 0.23 g/L·h and 0.31 g/g, respectively. To improve the butanol production, the concentrations of initial sugar, DSY and calcium carbonate were varied using response surface methodology (RSM) based on Box–Behnken design. It was found that the optimal conditions for high butanol production were initial sugar, 50 g/L; DSY, 6 g/L and calcium carbonate, 6.6 g/L. Under these conditions, the highest experimental PB, QB and YB/S values were 11.38 g/L, 0.32 g/L·h and 0.40 g/g, respectively with 50% sugar consumption (SC). The PB with neither DSY nor CaCO3 was only 8.53 g/L. When an in situ gas stripping system was connected to the fermenter to remove butanol produced during the fermentation, the PB was increased to 15.33 g/L, whereas the YB/S (0.39 g/g) was not changed. However, the QB was decreased to 0.21 g/L·h with 75% SC.

scholarly journals In-Situ Densification of Ti Coatings by the Warm Spray (Two-Stage HVOF) Process

2006 ◽  
Vol 47 (7) ◽  
pp. 1631-1637 ◽  
Author(s):  
Jin Kawakita ◽  
Seiji Kuroda ◽  
Sebastian Krebs ◽  
Hiroshi Katanoda
Keyword(s):  
Two Stage ◽  
Warm Spray ◽  
Hvof Process

scholarly journals A comparison of the energy use of in situ product recovery techniques for the Acetone Butanol Ethanol fermentation

2016 ◽  
Vol 220 ◽  
pp. 590-600 ◽  
Author(s):  
Victoria Outram ◽  
Carl-Axel Lalander ◽  
Jonathan G.M. Lee ◽  
E. Timothy Davis ◽  
Adam P. Harvey
Keyword(s):  
Ethanol Fermentation ◽  
Energy Use ◽  
Product Recovery ◽  
In Situ Product Recovery ◽  
Recovery Techniques ◽  
Acetone Butanol Ethanol
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