Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob
© The Royal Society of Chemistry 2018. Saccharification of lignocellulose is a necessary procedure for deconstructing the complex structure for building a sugar platform that can be used for producing biofuel and high-value chemicals. In this study, a carbon-based solid acid catalyst derived from so...
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th-cmuir.6653943832-584342018-09-05T04:25:14Z Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob Xun Li Fengyao Shu Chao He Shuna Liu Noppol Leksawasdi Qiong Wang Wei Qi Md Asraful Alam Zhenhong Yuan Yi Gao Chemical Engineering Chemistry © The Royal Society of Chemistry 2018. Saccharification of lignocellulose is a necessary procedure for deconstructing the complex structure for building a sugar platform that can be used for producing biofuel and high-value chemicals. In this study, a carbon-based solid acid catalyst derived from sodium lignosulfonate, a waste by-product from the paper industry, was successfully prepared and used for the hydrolysis of hemicellulose in corncob. The optimum preparation conditions for the catalyst were determined to be carbonization at 250 °C for 6 h, followed by sulfonation with concentrated H2SO4(98%) and oxidation with 10% H2O2(solid-liquid ratio of 1:75 g mL-1) at 50 °C for 90 min. SEM, XRD, FT-IR, elemental analysis and acid-base titration were used for the characterization of the catalysts. It was found that 0.68 mmol g-1SO3H and 4.78 mmol g-1total acid were loaded onto the catalyst. When corncob was hydrolyzed by this catalyst at 130 °C for 12 h, the catalyst exhibited high selectivity and produced a relatively high xylose yield of up to 84.2% (w/w) with a few by-products. Under these conditions, the retention rate of cellulose was 82.5%, and the selectivity reached 86.75%. After 5 cycles of reuse, the catalyst still showed high catalytic activity, with slightly decreased yields of xylose from 84.2% to 70.7%. 2018-09-05T04:23:59Z 2018-09-05T04:23:59Z 2018-01-01 Journal 20462069 2-s2.0-85044200818 10.1039/c7ra13362f https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85044200818&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/58434 |
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Chemical Engineering Chemistry Xun Li Fengyao Shu Chao He Shuna Liu Noppol Leksawasdi Qiong Wang Wei Qi Md Asraful Alam Zhenhong Yuan Yi Gao Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob |
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© The Royal Society of Chemistry 2018. Saccharification of lignocellulose is a necessary procedure for deconstructing the complex structure for building a sugar platform that can be used for producing biofuel and high-value chemicals. In this study, a carbon-based solid acid catalyst derived from sodium lignosulfonate, a waste by-product from the paper industry, was successfully prepared and used for the hydrolysis of hemicellulose in corncob. The optimum preparation conditions for the catalyst were determined to be carbonization at 250 °C for 6 h, followed by sulfonation with concentrated H2SO4(98%) and oxidation with 10% H2O2(solid-liquid ratio of 1:75 g mL-1) at 50 °C for 90 min. SEM, XRD, FT-IR, elemental analysis and acid-base titration were used for the characterization of the catalysts. It was found that 0.68 mmol g-1SO3H and 4.78 mmol g-1total acid were loaded onto the catalyst. When corncob was hydrolyzed by this catalyst at 130 °C for 12 h, the catalyst exhibited high selectivity and produced a relatively high xylose yield of up to 84.2% (w/w) with a few by-products. Under these conditions, the retention rate of cellulose was 82.5%, and the selectivity reached 86.75%. After 5 cycles of reuse, the catalyst still showed high catalytic activity, with slightly decreased yields of xylose from 84.2% to 70.7%. |
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Xun Li Fengyao Shu Chao He Shuna Liu Noppol Leksawasdi Qiong Wang Wei Qi Md Asraful Alam Zhenhong Yuan Yi Gao |
author_facet |
Xun Li Fengyao Shu Chao He Shuna Liu Noppol Leksawasdi Qiong Wang Wei Qi Md Asraful Alam Zhenhong Yuan Yi Gao |
author_sort |
Xun Li |
title |
Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob |
title_short |
Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob |
title_full |
Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob |
title_fullStr |
Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob |
title_full_unstemmed |
Preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob |
title_sort |
preparation and investigation of highly selective solid acid catalysts with sodium lignosulfonate for hydrolysis of hemicellulose in corncob |
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2018 |
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https://www.scopus.com/inward/record.uri?partnerID=HzOxMe3b&scp=85044200818&origin=inward http://cmuir.cmu.ac.th/jspui/handle/6653943832/58434 |
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