A novel lime pretreatment for subsequent bioethanol production from rice straw – Calcium capturing by carbonation (CaCCO) process

Park, Jeung-yil; Shiroma, Riki; Al‐Haq, Muhammad Imran; Zhang, Ying; Ike, Masakazu; Arai‐Sanoh, Yumiko; Ida, Atsuhi; Kondo, Motohiko; Tokuyasu, Ken

doi:10.1016/j.biortech.2010.03.098

Cited by 129 publications

(63 citation statements)

References 26 publications

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“…The increase in ash concentration can be attributed to the binding of calcium ions to the carbohydrate and lignin components during the lime treatment [38]. The concentrations of ash in the residue of SALT and the residue of MALT were 2.62 (±1.38) % and 3.05 (±0.95) %, respectively.…”

Section: Comparison Of Steam-assisted Versus Microwave-assisted Treatmentioning

confidence: 87%

Comparison of steam-assisted versus microwave-assisted treatments for the fractionation of sweet sorghum bagasse

Kurian

Gariépy

Orsat

et al. 2015

Bioresour. Bioprocess.

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Background: The fractionation of lignocellulosic materials can be applied to get each of the components (cellulose, hemicellulose and lignin) of biomass in its maximum purity and yield. The individual component can be further processed to high-value products such as fuels and biomaterials at existing or newly developing biorefineries. The steam-assisted and microwave (MW)-assisted processes were used to fractionate sweet sorghum bagasse into hemicellulosic sugars, cellulose-rich and high-density residue and solid lignin. The treatment temperature evaluated for the fractionation process was 121°C for 30 to 120 min. The substrate was autohydrolysed to extract the hemicellulose, and the residue was delignified using lime solution to obtain cellulose-rich residue. The lignin and lime from the liquor obtained after the lime treatment of the autohydrolysed sweet sorghum bagasse (SSB) was precipitated using carbon dioxide gas. Results: Under optimum conditions, the steam-assisted autohydrolysis extracted 72.69 (±0.08) % by weight of the hemicelluloses while the MW-assisted autohydrolysis extracted 70.83 (±0.49) % of the hemicelluloses from the sweet sorghum bagasse. The steam-assisted lime treatment resulted in 69.67 (±1.26) % of the lignin extraction the MW-assisted lime treatment resulted in 68.27 (±1.19) % of the lignin extraction from the corresponding autohydrolysed sweet sorghum bagasse samples. The CO 2 treatment precipitated 58.85 (±3.2) % of the lignin dissolved in the yellow liquor of the steam-assisted process while 60.26 (±2.11) % of the dissolved lignin was recovered from the yellow liquor of the MW-assisted process.

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Section: Comparison Of Steam-assisted Versus Microwave-assisted Treatmentioning

confidence: 87%

Comparison of steam-assisted versus microwave-assisted treatments for the fractionation of sweet sorghum bagasse

Kurian

Gariépy

Orsat

et al. 2015

Bioresour. Bioprocess.

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show abstract

“…However, calcium hydroxide is advantageous due to its low cost, higher safety besides its recovery as insoluble calcium carbonate through reaction with carbon dioxide [149]. Lime pretreatment has been used in studies carried out with several lignocellulosic materials, such as sugarcane bagasse [150], switchgrass [151], rice straw [152] and poplar wood [153].…”

Section: Alkaline Pretreatmentmentioning

confidence: 99%

Sugarcane and Woody Biomass Pretreatments for Ethanol Production

Silva¹,

Teixeira²,

Moutta³

et al. 2013

Sustainable Degradation of Lignocellulosic Biomass - Techniques, Applications and Commercialization

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“…Alkaline pre-treatment has been carried out with different alkalis such as sodium hydroxide, potassium hydroxide, calcium hydroxide, and ammonium hydroxide (Park et al, 2010;Taherzadeh and Karimi, 2008). Alkalis disrupts the structure through swelling of lignocelluloses and partial solubilisation of lignin (Cheng et al, 2010;McIntosh and Vancov, 2010).…”

Section: Introductionmentioning

confidence: 99%

Eggshells assisted hydrolysis of banana pulp for biogas production

Kivuyo¹,

Njau²,

King’ondu³

2017

Afr. J. Environ. Sci. Technol.

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In this study, pretreatment of banana pulp using eggshells in both calcined and un-calcined forms to examine the extent of hydrolysis was conducted. Reactor C O containing banana pulp and inoculum but with no eggshells added was used as the control, while reactors C 1 , C 2 , C 3 , C 4 , and C 5 containing banana pulp and inoculum were spiked with 1, 3, 5, 7, and 9 g of un-calcined eggshells and calcined eggshells, for experiment 1 and 2, respectively. Anaerobic digestion was carried out at mesophilic temperature (35°C) for a period of 20 days. Digester C 3 with 5 g of calcined eggshells gave the largest cumulative biogas yield of 2343 mL with 62% CH 4 , followed by digester C 5 with 9 g of un-calcined eggshells which gave 2032 mL with 51.9% CH 4 . The least biogas yield of 10 mL was obtained in digester C 5 with 9 g of calcined eggshells additive.

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A novel lime pretreatment for subsequent bioethanol production from rice straw – Calcium capturing by carbonation (CaCCO) process

Cited by 129 publications

References 26 publications

Comparison of steam-assisted versus microwave-assisted treatments for the fractionation of sweet sorghum bagasse

Comparison of steam-assisted versus microwave-assisted treatments for the fractionation of sweet sorghum bagasse

Sugarcane and Woody Biomass Pretreatments for Ethanol Production

Eggshells assisted hydrolysis of banana pulp for biogas production

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