Conditioning of SO2-ethanol-water spent liquor from spruce for the production of chemicals by ABE fermentation

Holzforschung ◽  
2011 ◽  
Vol 65 (4) ◽  
Author(s):  
Evangelos Sklavounos ◽  
Mikhail Iakovlev ◽  
Minna Yamamoto ◽  
Lydia Teräsvuori ◽  
German Jurgens ◽  
...  
Keyword(s):  
Forest Biomass ◽  
Mixed Forest ◽  
Abe Fermentation ◽  
Wood Chips ◽  
Spruce Wood ◽  
Spent Liquor ◽  
Acetone Butanol Ethanol

Abstract The objective of this study is to develop a process for conditioning spent liquor produced by SO2-ethanol-water (SEW) fractionation of spruce wood chips for fermentation to butanol, ethanol and acetone/isopropanol, i.e., by means of the so called acetone-butanol-ethanol (ABE) process using Clostridia bacteria. This study serves as part of an overall project aiming at the development of economic processes for producing chemicals and biofuels from mixed forest biomass via SEW fractionation and ABE fermentation technologies.

Total mass balances of SO2-ethanol-water (SEW) fractionation of forest biomass

Holzforschung ◽  
2011 ◽  
Vol 65 (4) ◽  
Author(s):  
Minna Yamamoto ◽  
Mikhail Iakovlev ◽  
Adriaan van Heiningen
Keyword(s):  
Total Mass ◽  
Degradation Products ◽  
Forest Biomass ◽  
Mixed Forest ◽  
High Yield ◽  
Mass Balances ◽  
Fractionation Procedure ◽  
Sugar Degradation ◽  
Recycled Fibers ◽  
Acetone Butanol Ethanol

AbstractThe overall target of this project, called Bioforest, is to develop an economic process for the production of commodity chemicals from mixed forest biomass, consisting of logging residues of hardwoods (HW) and softwoods (SW) and also from recycled fibers. The aim is to dissolve the biomass lignin and to produce monosugars based on hemicelluloses and hydrolyzed cellulose in high yield. The hydrolyzate could subsequently be converted into chemicals by modified acetone-butanol-ethanol fermentation. Here, the total mass balances of SO2-ethanol-water fractionation of different types of biomass feedstocks, such as SW and HW biomass, and deinked pulp are presented. Chemical composition of the feedstocks, solid residues (pulps) and spent liquors of fractionation were analyzed to gain more understanding about the fractionation procedure. The analysis was focused on carbohydrates, lignin, ash, acetyl groups and sugar degradation products. It was also examined if all feedstocks could be treated simultaneously in one digester because a larger feedstock supply within an economic transport radius improves the viability of the process. The fractionation approach was successful and it can be concluded that the method presented is very versatile for future applications in lignocellulosic biorefineries.

Investigation of acetone-butanol-ethanol (ABE) fermentation by fluorescence

1994 ◽  
Vol 4 (1) ◽  
pp. 3-6
Author(s):  
F. Baut ◽  
M. Fick ◽  
M. L. Viriot ◽  
J. C. André ◽  
M. Donner
Keyword(s):  
Abe Fermentation ◽  
Acetone Butanol Ethanol

Enhancement of ethanol production from spruce wood chips by ionic liquid pretreatment

2013 ◽  
Vol 102 ◽  
pp. 163-169 ◽  
Author(s):  
Marzieh Shafiei ◽  
Hamid Zilouei ◽  
Akram Zamani ◽  
Mohammad J. Taherzadeh ◽  
Keikhosro Karimi
Keyword(s):  
Ionic Liquid ◽  
Ethanol Production ◽  
Wood Chips ◽  
Ionic Liquid Pretreatment ◽  
Spruce Wood

scholarly journals Effective continuous acetone–butanol–ethanol production with full utilization of cassava by immobilized symbiotic TSH06

2019 ◽  
Vol 12 (1) ◽  
Author(s):  
Zhangnan Lin ◽  
Hongjuan Liu ◽  
Jing Wu ◽  
Petra Patakova ◽  
Barbora Branska ◽  
...  
Keyword(s):  
Large Scale ◽  
Immobilized Cells ◽  
Continuous Fermentation ◽  
Abe Fermentation ◽  
Human Beings ◽  
Butanol Production ◽  
System A ◽  
Glucose System ◽  
Acetone Butanol Ethanol ◽  
Full Utilization

Abstract Background Butanol production by fermentation has recently attracted increasingly more attention because of its mild reaction conditions and environmentally friendly properties. However, traditional feedstocks, such as corn, are food supplies for human beings and are expensive and not suitable for butanol production at a large scale. In this study, acetone, butanol, and ethanol (ABE) fermentation with non-pretreated cassava using a symbiotic TSH06 was investigated. Results In batch fermentation, the butanol concentration of 11.6 g/L was obtained with a productivity of 0.16 g/L/h, which was similar to that obtained from glucose system. A full utilization system of cassava was constructed to improve the fermentation performance, cassava flour was used as the substrate and cassava peel residue was used as the immobilization carrier. ABE fermentation with immobilized cells resulted in total ABE and butanol concentrations of 20 g/L and 13.3 g/L, which were 13.6% and 14.7% higher, respectively, than those of free cells. To further improve the solvent productivity, continuous fermentation was conducted with immobilized cells. In single-stage continuous fermentation, the concentrations of total ABE and butanol reached 9.3 g/L and 6.3 g/L with ABE and butanol productivities of 1.86 g/L/h and 1.26 g/L/h, respectively. In addition, both of the high product concentration and high solvent productivity were achieved in a three-stage continuous fermentation. The ABE productivity and concentration was 1.12 g/L/h and 16.8 g/L, respectively. Conclusions The results indicate that TSH06 could produce solvents from cassava effectively. This study shows that ABE fermentation with cassava as a substrate could be an efficient and economical method of butanol production.

scholarly journals Milling byproducts are an economically viable substrate for butanol production using clostridial ABE fermentation

2020 ◽  
Vol 104 (20) ◽  
pp. 8679-8689
Author(s):  
Nils Thieme ◽  
Johanna C. Panitz ◽  
Claudia Held ◽  
Birgit Lewandowski ◽  
Wolfgang H. Schwarz ◽  
...  
Keyword(s):  
Clostridium Beijerinckii ◽  
Abe Fermentation ◽  
Liquid Fuels ◽  
Butanol Production ◽  
Enzymatic Pretreatment ◽  
Profitability Analysis ◽  
Key Points ◽  
Wide Range ◽  
Wheat Middlings ◽  
Acetone Butanol Ethanol

Abstract Butanol is a platform chemical that is utilized in a wide range of industrial products and is considered a suitable replacement or additive to liquid fuels. So far, it is mainly produced through petrochemical routes. Alternative production routes, for example through biorefinery, are under investigation but are currently not at a market competitive level. Possible alternatives, such as acetone-butanol-ethanol (ABE) fermentation by solventogenic clostridia are not market-ready to this day either, because of their low butanol titer and the high costs of feedstocks. Here, we analyzed wheat middlings and wheat red dog, two wheat milling byproducts available in large quantities, as substrates for clostridial ABE fermentation. We could identify ten strains that exhibited good butanol yields on wheat red dog. Two of the best ABE producing strains, Clostridium beijerinckii NCIMB 8052 and Clostridium diolis DSM 15410, were used to optimize a laboratory-scale fermentation process. In addition, enzymatic pretreatment of both milling byproducts significantly enhanced ABE production rates of the strains C. beijerinckii NCIMB 8052 and C. diolis DSM 15410. Finally, a profitability analysis was performed for small- to mid-scale ABE fermentation plants that utilize enzymatically pretreated wheat red dog as substrate. The estimations show that such a plant could be commercially successful. Key points • Wheat milling byproducts are suitable substrates for clostridial ABE fermentation. • Enzymatic pretreatment of wheat red dog and middlings increases ABE yield. • ABE fermentation plants using wheat red dog as substrate are economically viable.

Chemical and thermal properties of precipitates made from hydrolysate of spruce wood chips

2019 ◽  
Vol 53 (4) ◽  
pp. 889-909 ◽  
Author(s):  
Dmitry Tarasov ◽  
Mathew Leitch ◽  
Pedram Fatehi
Keyword(s):  
Thermal Properties ◽  
Wood Chips ◽  
Spruce Wood

Study on Conditioning of SO2–Ethanol–Water Spent Liquor from Spruce Chips/Softwood Biomass for ABE Fermentation

2013 ◽  
Vol 52 (11) ◽  
pp. 4351-4359 ◽  
Author(s):  
Evangelos Sklavounos ◽  
Mikhail Iakovlev ◽  
Adriaan van Heiningen
Keyword(s):  
Abe Fermentation ◽  
Spent Liquor

Acetone-butanol-ethanol (ABE) fermentation using the root hydrolysate after extraction of forskolin from Coleus forskohlii

2016 ◽  
Vol 86 ◽  
pp. 594-601 ◽  
Author(s):  
Shirish M. Harde ◽  
Swati B. Jadhav ◽  
Sandip B. Bankar ◽  
Heikki Ojamo ◽  
Tom Granström ◽  
...  
Keyword(s):  
Abe Fermentation ◽  
Coleus Forskohlii ◽  
Acetone Butanol Ethanol
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