Assessment of cellulosic biomass saccharification by molten brönsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) via kinetic studies
Ionic liquids have been employed to deconstruct and fractionate lignocellulosic biomasses because of their capacity to dissolve cellulose. However, there is limited literature reporting the use of ionic liquids in biomass saccharification, which mostly involves the addition of acid or water that con...
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North Carolina State University
2016
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| author | Ang, T.N. Chan, C.H. Ngoh, G.C. Lee, K.M. Yoon, L.W. Chua, A.S.M. |
| author_facet | Ang, T.N. Chan, C.H. Ngoh, G.C. Lee, K.M. Yoon, L.W. Chua, A.S.M. |
| author_sort | Ang, T.N. |
| collection | UM |
| description | Ionic liquids have been employed to deconstruct and fractionate lignocellulosic biomasses because of their capacity to dissolve cellulose. However, there is limited literature reporting the use of ionic liquids in biomass saccharification, which mostly involves the addition of acid or water that conceals the true action of ionic liquid in saccharification. This article assesses the performance of molten Brӧnsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) in saccharifying three agricultural biomasses, namely sago hampas, sugarcane bagasse, and rice husk, via saccharification kinetics. At 100 °C, [EMIM][HSO4] saccharification of the biomasses achieved equilibrium reducing sugar yields at various durations (sago hampas, 3 h; sugarcane bagasse, 1 h; rice husk, 5 h). The kinetic rate constant was obtained from model fitting, indicated that [EMIM][HSO4] showed a preference for saccharifying less recalcitrant sugarcane bagasse (37.9%) than sago hampas (7.0%) and rice husk (1.1%). Compared to H2SO4 saccharification, reducing sugar yields of [EMIM][HSO4] were consistently lower. The difference in yields might be attributed to the hydrous/anhydrous state of reaction and limited availability of component ions of the ionic liquid for dissolution and saccharification. This study demonstrates the feasible technical aspects of applying [EMIM][HSO4] to saccharify agricultural biomasses, which may lead to economic feasibility, recyclability, and cost effectiveness of ionic liquids in saccharification. |
| first_indexed | 2024-03-06T05:45:04Z |
| format | Article |
| id | um.eprints-18311 |
| institution | Universiti Malaya |
| last_indexed | 2024-03-06T05:45:04Z |
| publishDate | 2016 |
| publisher | North Carolina State University |
| record_format | dspace |
| spelling | um.eprints-183112017-11-17T06:46:36Z http://eprints.um.edu.my/18311/ Assessment of cellulosic biomass saccharification by molten brönsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) via kinetic studies Ang, T.N. Chan, C.H. Ngoh, G.C. Lee, K.M. Yoon, L.W. Chua, A.S.M. TP Chemical technology Ionic liquids have been employed to deconstruct and fractionate lignocellulosic biomasses because of their capacity to dissolve cellulose. However, there is limited literature reporting the use of ionic liquids in biomass saccharification, which mostly involves the addition of acid or water that conceals the true action of ionic liquid in saccharification. This article assesses the performance of molten Brӧnsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) in saccharifying three agricultural biomasses, namely sago hampas, sugarcane bagasse, and rice husk, via saccharification kinetics. At 100 °C, [EMIM][HSO4] saccharification of the biomasses achieved equilibrium reducing sugar yields at various durations (sago hampas, 3 h; sugarcane bagasse, 1 h; rice husk, 5 h). The kinetic rate constant was obtained from model fitting, indicated that [EMIM][HSO4] showed a preference for saccharifying less recalcitrant sugarcane bagasse (37.9%) than sago hampas (7.0%) and rice husk (1.1%). Compared to H2SO4 saccharification, reducing sugar yields of [EMIM][HSO4] were consistently lower. The difference in yields might be attributed to the hydrous/anhydrous state of reaction and limited availability of component ions of the ionic liquid for dissolution and saccharification. This study demonstrates the feasible technical aspects of applying [EMIM][HSO4] to saccharify agricultural biomasses, which may lead to economic feasibility, recyclability, and cost effectiveness of ionic liquids in saccharification. North Carolina State University 2016 Article PeerReviewed Ang, T.N. and Chan, C.H. and Ngoh, G.C. and Lee, K.M. and Yoon, L.W. and Chua, A.S.M. (2016) Assessment of cellulosic biomass saccharification by molten brönsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) via kinetic studies. BioResources, 11 (1). pp. 1349-1358. ISSN 1930-2126, DOI https://doi.org/10.15376/biores.11.1.1349-1358 <https://doi.org/10.15376/biores.11.1.1349-1358>. https://doi.org/10.15376/biores.11.1.1349-1358 doi:10.15376/biores.11.1.1349-1358 |
| spellingShingle | TP Chemical technology Ang, T.N. Chan, C.H. Ngoh, G.C. Lee, K.M. Yoon, L.W. Chua, A.S.M. Assessment of cellulosic biomass saccharification by molten brönsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) via kinetic studies |
| title | Assessment of cellulosic biomass saccharification by molten brönsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) via kinetic studies |
| title_full | Assessment of cellulosic biomass saccharification by molten brönsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) via kinetic studies |
| title_fullStr | Assessment of cellulosic biomass saccharification by molten brönsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) via kinetic studies |
| title_full_unstemmed | Assessment of cellulosic biomass saccharification by molten brönsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) via kinetic studies |
| title_short | Assessment of cellulosic biomass saccharification by molten brönsted acidic 1-ethyl-3-methylimidazolium hydrogen sulphate ([EMIM][HSO4]) via kinetic studies |
| title_sort | assessment of cellulosic biomass saccharification by molten bronsted acidic 1 ethyl 3 methylimidazolium hydrogen sulphate emim hso4 via kinetic studies |
| topic | TP Chemical technology |
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