Kinetic studies of two-stage sulphuric acid hydrolysis of sugarcane bagasse

Kumar, Sachin; Dheeran, Pratibha; Singh, Surendra; Mishra, Indra Mani; Adhikari, Dilip K.

doi:10.1016/j.renene.2015.05.033

Cited by 66 publications

(37 citation statements)

References 31 publications

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“…Dilute acid and concentrated acid are two types of acid hydrolysis. Dilute acid usually uses less than 10% acid concentration while concentrated acids is greater than 10% . Acids such as sulfuric and phosphoric acid help to solubilize hemicelluloses and transform them into fermentable sugars .…”

Section: Pre‐treatment Of Sugarcane Bagassementioning

confidence: 99%

A review of sugarcane bagasse for second‐generation bioethanol and biopower production

Bezerra

Ragauskas

2016

Biofuels Bioprod Bioref

218

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Sugarcane bagasse is a large-volume agriculture residue that is generated on a ~540 million metric tons per year basis globally 1,2 with the top-three producing countries in Latin America being Brazil (~181 million metric ton yr −1 ), 3 Mexico (~15 million metric ton yr −1 ), 4 and Colombia (~7 million metric ton yr −1 ), 5 respectively. 6 Given sustainability concerns and the need to maximize the utilization of bioresources, the use of sugarcane bagasse is receiving signifi cant attention in biorefi ning applications, as it is a promising resource for the conversion to biofuels and biopower. This review provides a comprehensive review of bagasse and its chemical constituents and on-going research into its utilization as a feedstock for cellulosic ethanol and electricity generation.

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Section: Pre‐treatment Of Sugarcane Bagassementioning

confidence: 99%

A review of sugarcane bagasse for second‐generation bioethanol and biopower production

Bezerra

Ragauskas

2016

Biofuels Bioprod Bioref

218

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“…Reference [13] obtained optimum condition for wheat bran pre-treatment to be: acid concentration of 1.75% (w/v), at 190 °C for 10 min. Another study obtained 73.4 g l −1 glucose-rich solution in the secondstage of hydrolysis by using 40% acid concentration at 80 °C [14]. Reference [15] also obtained a high glucose yield at 180˚C after 5mins reaction time.…”

Section: Effect Of Process Parameters On Hydrolysis Of Cowpea Hullmentioning

confidence: 98%

Dilute Acid Hydrolysis of Cowpea Hulls: A Kinetic Study

Onyelucheya

Nwabanne

Onyelucheya

et al. 2016

International Journal on Advanced Science, Engineering and Information Technology

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In this study, dilute acid hydrolysis of cowpea hulls was carried out in two stages under the following conditions: prehydrolysis (4%v/v H 2 SO 4 , 121˚C, 30 minutes) and hydrolysis (at 10% and 15% v/v H 2 SO 4 ,varied at different temperatures 150 o C, 160 o C, 170 o C and 180 o C for 2.5 hrs.). The substrate was characterized using both Fourier transform infrared spectroscopy and proximate analysis. The percentage lignocellulosic composition of the substrate was obtained for cellulose, hemicellulose and lignin as 34%, 14% and 4.7% respectively. Maximum glucose concentration of 8.09g was obtained using 10%v/v acid concentration at 170˚C after a reaction time of 90min. Saeman's model gave a good fit for the experimental data. Activation energy for glucose formation using 10%v/v and 15%v/v H 2 SO 4 was obtained as 38.28KJ and 82.204KJ respectively. From the results obtained it can be concluded that cowpea hulls can be converted to a useful product.

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“…The co-catalyst effect of sulfuric acid and acetic acid decreased the total amount of acid. Under the action of H + , the long chain of hemicellulose contained in lignocellulosic biomass is hydrolyzed at high temperatures to xylose and other monosaccharides (Kumar et al 2015). And from the Fig.…”

Section: Mechanism Of Furfural Production Process By M-o-l Acid Catalmentioning

confidence: 99%

“…Sulfuric acid is an effective catalyst for the depolymerization of biomass by the cleavage of glycosidic bonds under the action of hydrogen ion to oligomeric sugars and pentoses (Kumar et al 2015). Under the action of hydrogen ions, the long chain of hemicellulose contained in lignocellulosic biomass is hydrolyzed to xylose and other monosaccharides, while cellulose and lignin fractions remain almost unreacted.…”

Section: Introductionmentioning

confidence: 99%

Efficient Production of Furfural from Corncob by an Integrated Mineral-Organic-Lewis Acid Catalytic Process

Zhang

et al. 2017

BioResources

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An M-O-L acid (mineral acid, organic acid, and Lewis acid)-catalyzed integrated process for furfural production from corncob was proposed to improve corncob conversion and furfural selectivity. First, the co-catalysts of sulfuric acid and acetic acid were investigated for their impact on furfural production. Sulfuric acid as a pretreatment catalyst was mixed with corncob before the experiment. Acetic acid, which is a byproduct of hemicellulose hydrolysis, was fed together with steam. The results showed that the cooperation of sulfuric acid and acetic acid decreased the total acid consumption dramatically. FeCl3·6H2O was also investigated as a cocatalyst in an effort to enhance the conversion of xylose to furfural and decrease furfural degradation. The integrated catalytic process achieved the highest furfural yield of 68.04% through the use of M-O-L acid under a reaction temperature of 180°C, 3v% acetic acid, 4.0 wt.% sulfuric acid of 0.6 mL/g liquid to solid ratio, and 5 g FeCl3·6H2O per 100 g of biomass.

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Kinetic studies of two-stage sulphuric acid hydrolysis of sugarcane bagasse

Cited by 66 publications

References 31 publications

A review of sugarcane bagasse for second‐generation bioethanol and biopower production

A review of sugarcane bagasse for second‐generation bioethanol and biopower production

Dilute Acid Hydrolysis of Cowpea Hulls: A Kinetic Study

Efficient Production of Furfural from Corncob by an Integrated Mineral-Organic-Lewis Acid Catalytic Process

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