Integrated ABE fermentation-gas stripping process for enhanced butanol production from sugarcane-sweet sorghum juices

Rochón, Eloísa; Ferrari, Mario Daniel; Lareo, Claudia

doi:10.1016/j.biombioe.2017.01.011

Cited by 67 publications

(42 citation statements)

References 35 publications

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“…To solve these problems, the alternative nitrogen sources are used to replace YE. Product removal has been proposed to alleviate butanol toxicity using a number of alternative techniques, e.g., pervaporation [13,14], gas stripping [15][16][17][18][19], adsorption [20,21] and liquid-liquid extraction [22]. Among these techniques, gas stripping has been found to be particularly promising.…”

Section: Introductionmentioning

confidence: 99%

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

et al. 2020

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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.

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Section: Introductionmentioning

confidence: 99%

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

et al. 2020

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“…Further Xue et al (2012) reported the coupling of process to phase separation by liquid-liquid extraction which increased the butanol production up to 610g/L. Rochon et al, (2017) reported the production of 18.6g/L butanol by Clostridium acetobutylicum DSM 792 using sugarcane sweet sorghum juices in a fermentation coupled to gas stripping.…”

Section: Various Methods To Improve the Yield Of The Process Increasementioning

confidence: 99%

Recent Advances in Microbial Production of Butanol as a Biofuel

Goyal

Khanna

2019

Int J Appl Sci Biotechnol

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In lieu of rising crude oil prices, exhaustion of petroleum feed stocks and environmental challenges, only renewable fuels have the potential to match the energy requirements of the future. Among the various renewable fuels, butanol has recently gained a lot of attention because of its advantages over other biofuels. Its microbial production by clostridia through ABE fermentation is being explored for improved yield and cost effectiveness. Using lignocellulosic wastes successfully for butanol production through ABE fermentation is a major breakthrough to deal with the future energy crisis. Genetic engineering of microbes to increase the carbon and redox balance, cell recycling, media optimization, mathematical modelling and tolerance improvement strategies are being attempted to overcome the hurdles of high production cost, by products formation leading to low yield and product toxicity. Along with genetic engineering major research is cantered on heterologous host engineering for improved butanol production and tolerance. This review highlights the recent advances in improving yield and tolerance to butanol in both Clostridial and heterologous hosts from genetic engineering and fermentation methodology aspects. Int. J. Appl. Sci. Biotechnol. Vol 7(2): 130-152

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“…On the other hand, the target substances can be separated without stopping the original reaction system. In the process of biobutanol production, in situ stripping processes have been well evaluated . The biobutanol production by fermentation is recovered by gas stripping .…”

Section: Introductionmentioning

confidence: 99%

“…In the process of biobutanol production, in situ stripping processes have been well evaluated. 19 The biobutanol production by fermentation is recovered by gas stripping. 20,21 The butanol concentration is maintained below the inhibitory concentration, which can reduce energy consumption in the final product recovery.…”

Section: Introductionmentioning

confidence: 99%

Intensification of esterification process in TBP synthesis by in situ vapor stripping

Zhang

Jin

et al. 2019

J of Chemical Tech & Biotech

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BACKGROUND Over the past few decades, tri‐n‐butyl phosphate (TBP) has been a widely used and irreplaceable extractant that can extract a variety of heavy metal ions and inorganic acids. The conventional process of tri‐n‐butyl phosphate synthesis has the problem of low yield. The in situ vapor stripping method was developed to intensify the tri‐n‐butyl phosphate synthesis reaction. RESULTS In this work, the coupling process of in situ vapor stripping and reaction was proposed for the first time in the process of synthesis of TBP. It was found that the reaction of high concentration hydrogen chloride and 1‐butanol would produce water, which resulted in increasing the possibility of side reactions, especially when the temperature was higher than 55 °C. In the lower temperature range, n‐pentane was selected as the stripping medium, which effectively removed hydrogen chloride from the reaction system by in situ vapor stripping. The FT‐IR analysis confirmed that TBP can be synthesized successfully by the vapor stripping process. In addition, the effects of n‐pentane volume, temperature and stripping time on the yield of TBP and the amount of hydrogen chloride stripped were investigated. By applying the optimum reaction conditions, the yield of TBP was increased to 94%, larger than that of the current industrial process whose yield is only 80%. CONCLUSION The in situ vapor stripping process is demonstrated to be an effective method for intensification of the esterification process in TBP synthesis. It can be used for other reactions which generate volatile gases as the byproduct. © 2018 Society of Chemical Industry

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Integrated ABE fermentation-gas stripping process for enhanced butanol production from sugarcane-sweet sorghum juices

Cited by 67 publications

References 35 publications

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

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

Recent Advances in Microbial Production of Butanol as a Biofuel

Intensification of esterification process in TBP synthesis by in situ vapor stripping

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