The Effect of Flow Rate of Very Dilute Sulfuric Acid on Xylan, Lignin, and Total Mass Removal from Corn Stover

2004 ◽  
Vol 43 (11) ◽  
pp. 2781-2788 ◽  
Author(s):  
Chaogang Liu ◽  
Charles E. Wyman
Keyword(s):  
Sulfuric Acid ◽  
Corn Stover ◽  
Flow Rate ◽  
Total Mass ◽  
Mass Removal ◽  
Dilute Sulfuric Acid

Study on Dilute Sulfuric Acid Hydrolysis of Corn Stover

2011 ◽  
Vol 236-238 ◽  
pp. 313-316
Author(s):  
Jun Ping Zhu ◽  
Jian Lu Ma ◽  
Xiao Chen Liu ◽  
Biao Zhang ◽  
Wei Jie Xu ◽  
...  
Keyword(s):  
Capillary Electrophoresis ◽  
Sulfuric Acid ◽  
Corn Stover ◽  
Optimal Conditions ◽  
Liquid Ratio ◽  
Factors Influencing ◽  
Dilute Sulfuric Acid ◽  
Hydrolysis Temperature ◽  
Solid Liquid ◽  
Hydrolysis Of

The object of this research is to investigate the factors influencing the hydrolysis of corn stover by dilute sulfuric acid and the types of sugars existed in hydrolysate. Experiment results showed that the optimal conditions were hydrolysis temperature 120°C, stover size 20-40 mesh, soak time 36h, reaction time 100 min, H2SO4concentration 1.5% and solid-liquid ratio 1:8. Sugars gained in the hydrolysate were xylose 3.0%, glucose 0.71%, mannose 0.12% and galactose 0.32% determined by capillary electrophoresis.

Dilute Sulfuric Acid Pretreatment and Enzymatic Hydrolysis of Corn Stover into Fermentable Sugars

2012 ◽  
Vol 535-537 ◽  
pp. 2462-2468 ◽  
Author(s):  
Shang Xing Chen ◽  
Qiang Yong ◽  
Yong Xu ◽  
Shi Yuan Yu
Keyword(s):  
Sulfuric Acid ◽  
Enzymatic Hydrolysis ◽  
Corn Stover ◽  
Acid Pretreatment ◽  
Pretreatment Condition ◽  
Structure And Property ◽  
Dilute Sulfuric Acid ◽  
Feature Structure ◽  
Dilute Sulfuric Acid Pretreatment ◽  
Sulfuric Acid Pretreatment

The pretreatment of corn stover with dilute sulfuric acid has been investigated by varying the acid concentration (0.5%-1.25%(w/w)) and the temperature (130-160°C). The pretreatment is aimed at improving enzymatic hydrolysis and increasing the fermentability of the biomass. Given the overall sugar yield, the most favourable pretreatment condition was performed with 0.75% sulfuric acid at 150°C for 30min and then with an enzyme loading of cellulase 15 FPU per gram of cellulose, and it resulted in a total of 49.74g glucose and xylose from 100g dry corn stover. The fiber physical feature, structure and property of pretreated residues were studied with Scanning Electron Microscope (SEM) and Fourier transform infrared spectroscopy. The SEM pictures indicated that the biomass structure was deformed and its fibers were exposed by the pretreatment. FTIR study showed that lignin and hemicellulose were partially removed during the diluted sulfuric acid pretreatment.

Porosity and Its Effect on the Digestibility of Dilute Sulfuric Acid Pretreated Corn Stover

2007 ◽  
Vol 55 (7) ◽  
pp. 2575-2581 ◽  
Author(s):  
Claudia I. Ishizawa ◽  
Mark F. Davis ◽  
Daniel F. Schell ◽  
David K. Johnson
Keyword(s):  
Sulfuric Acid ◽  
Corn Stover ◽  
Pretreated Corn Stover ◽  
Dilute Sulfuric Acid
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