scholarly journals Ammonia Fiber Expansion (AFEX) Pretreatment of Lignocellulosic Biomass

10.3791/57488 ◽  
2020 ◽  
Author(s):  
Shishir P. S. Chundawat ◽  
Ramendra K. Pal ◽  
Chao Zhao ◽  
Timothy Campbell ◽  
Farzaneh Teymouri ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Ammonia Fiber Expansion ◽  
Afex Pretreatment

Optimization of Ammonia Fiber Expansion (AFEX) Pretreatment and Enzymatic Hydrolysis ofMiscanthus x giganteusto Fermentable Sugars

2007 ◽  
Vol 23 (4) ◽  
pp. 846-850 ◽  
Author(s):  
Hannah K. Murnen ◽  
Venkatesh Balan ◽  
Shishir P. S. Chundawat ◽  
Bryan Bals ◽  
Leonardo da Costa Sousa ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Fermentable Sugars ◽  
Ammonia Fiber Expansion ◽  
Afex Pretreatment

Optimization of Ammonia Fiber Expansion (AFEX) Pretreatment and Enzymatic Hydrolysis of Miscanthus x giganteus to Fermentable Sugars

2007 ◽  
Vol 23 (4) ◽  
pp. 846-850 ◽  
Author(s):  
H.K. Murnen ◽  
V. Balan ◽  
S.P.S. Chundawat ◽  
B. Bals ◽  
L. daCostaSousa ◽  
...  
Keyword(s):  
Enzymatic Hydrolysis ◽  
Fermentable Sugars ◽  
Miscanthus X Giganteus ◽  
Ammonia Fiber Expansion ◽  
Afex Pretreatment ◽  
Hydrolysis Of

Evaluating the impact of ammonia fiber expansion (AFEX) pretreatment conditions on the cost of ethanol production

2011 ◽  
Vol 102 (2) ◽  
pp. 1277-1283 ◽  
Author(s):  
Bryan Bals ◽  
Chris Wedding ◽  
Venkatesh Balan ◽  
Elizabeth Sendich ◽  
Bruce Dale
Keyword(s):  
Ethanol Production ◽  
Ammonia Fiber Expansion ◽  
Afex Pretreatment ◽  
Pretreatment Conditions ◽  
The Cost ◽  
The Impact

scholarly journals Impact of ammonia fiber expansion (AFEX) pretreatment on energy consumption during drying, grinding, and pelletization of corn stover

2016 ◽  
Vol 34 (11) ◽  
pp. 1319-1329 ◽  
Author(s):  
Ian Jeffery Bonner ◽  
David N. Thompson ◽  
Mitchell Plummer ◽  
Matthew Dee ◽  
Jaya Shankar Tumuluru ◽  
...  
Keyword(s):  
Energy Consumption ◽  
Corn Stover ◽  
Ammonia Fiber Expansion ◽  
Afex Pretreatment

scholarly journals Ammonia Fiber Expansion (Afex) Treatment of Wheat Straw for Production of Bioethanol

2021 ◽  
Author(s):  
Seyed Farshidreza Emam
Keyword(s):  
Enzymatic Hydrolysis ◽  
Moisture Content ◽  
Wheat Straw ◽  
Residence Time ◽  
Dry Weight ◽  
Maximum Efficiency ◽  
Lignocellulosic Materials ◽  
Ammonia Fiber Expansion ◽  
Afex Pretreatment ◽  
Hydrolysis Of

Ammonia Fiber Expansion (AFEX) treatment is a technique that is able to enhance the enzymatic hydrolysis yield of lignocellulosic materials. In this technique, lignocellulosic materials are treated by liquid ammonia under pressure followed by rapid release of pressure that expands the fiber structure and increases enzyme access to lignocellulose polysaccharides. However, the AFEX treatment variables such as the mass ratio of ammonia to lignocellulosic biomass, moisture of lignocellulose (moisture content of biomass), temperature, and residence time need to be evaluated to find the maximum efficiency of this treatment. The efficiency of the AFEX pretreatment was quantified by the yield of released sugars during enzymatic hydrolysis of the AFEX-treated wheat straw. The optimal treatment conditions for wheat straw were found to be: ammonia-to-wheat straw ratio, 1:1; temperature, 95°C; moisture content of wheat straw, 70% (dry weight basis); and residence time, 5 minutes. Under these conditions, almost 89% of the theoretical sugars were released by enzymatic hydrolysis of the AFEX-treated wheat straw. The enzymatic hydrolysis results showed the significance of AFEX pretreatment of wheat straw when compared to untreated wheat straw with released sugars yield of only 26 %.

Guayule as a feedstock for lignocellulosic biorefineries using ammonia fiber expansion (AFEX) pretreatment

2012 ◽  
Vol 37 (1) ◽  
pp. 486-492 ◽  
Author(s):  
Shishir P.S. Chundawat ◽  
Linpei Chang ◽  
Christa Gunawan ◽  
Venkatesh Balan ◽  
Colleen McMahan ◽  
...  
Keyword(s):  
Ammonia Fiber Expansion ◽  
Afex Pretreatment

scholarly journals Ammonia Fiber Expansion (Afex) Treatment of Wheat Straw for Production of Bioethanol

2021 ◽  
Author(s):  
Seyed Farshidreza Emam
Keyword(s):  
Enzymatic Hydrolysis ◽  
Moisture Content ◽  
Wheat Straw ◽  
Residence Time ◽  
Dry Weight ◽  
Maximum Efficiency ◽  
Lignocellulosic Materials ◽  
Ammonia Fiber Expansion ◽  
Afex Pretreatment ◽  
Hydrolysis Of

Ammonia Fiber Expansion (AFEX) treatment is a technique that is able to enhance the enzymatic hydrolysis yield of lignocellulosic materials. In this technique, lignocellulosic materials are treated by liquid ammonia under pressure followed by rapid release of pressure that expands the fiber structure and increases enzyme access to lignocellulose polysaccharides. However, the AFEX treatment variables such as the mass ratio of ammonia to lignocellulosic biomass, moisture of lignocellulose (moisture content of biomass), temperature, and residence time need to be evaluated to find the maximum efficiency of this treatment. The efficiency of the AFEX pretreatment was quantified by the yield of released sugars during enzymatic hydrolysis of the AFEX-treated wheat straw. The optimal treatment conditions for wheat straw were found to be: ammonia-to-wheat straw ratio, 1:1; temperature, 95°C; moisture content of wheat straw, 70% (dry weight basis); and residence time, 5 minutes. Under these conditions, almost 89% of the theoretical sugars were released by enzymatic hydrolysis of the AFEX-treated wheat straw. The enzymatic hydrolysis results showed the significance of AFEX pretreatment of wheat straw when compared to untreated wheat straw with released sugars yield of only 26 %.

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