Citation
Nazlina Y., . and Nor Aishah Saidina A., . (2014) Catalytic conversion of lignocellulosic biomass to levulinic acid in ionic liquid. [Proceedings Paper]
Abstract
The catalytic conversion of lignocellulosic biomass to levulinic acid in ionic liquid EMIMCl was conducted using hybrid catalyst. Hybrid catalyst with equal weight ratios of CrCh and HY zeolite was synthesized using wetness impregnation method. Initially optimization of cellulose as a model compound was carried out using two levels full factorial designs 23 with two centre points. At optimum process conditions 46.0 of levulinic acid yield were produced from cellulose. Subsequently utilization of lignocellulosic biomass empty fruit bunch EFB and kenaf demonstrated that 15.5 and 15.0 of levulinic acid were produced from EFB and kenaf respectively at optimum conditions. Meanwhile in the presence of ionic liquid under the same process conditions 20.0 and 17.0 of levulinic acid were produced from EFB and kenaf. This indicates that the ionic liqllid could disrupt the covalent linkages between the biomass structures dissolve the cellulose and allow the cellulose chains accessible to the chemical transformation to produce levulinic acid by using the hybrid catalyst. This study demonstrated that the combination of hybrid catalyst with ionic liquid has potential to be applied in biomass conversion to levulinic acid under adequate process conditions.
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Abstract
The catalytic conversion of lignocellulosic biomass to levulinic acid in ionic liquid EMIMCl was conducted using hybrid catalyst. Hybrid catalyst with equal weight ratios of CrCh and HY zeolite was synthesized using wetness impregnation method. Initially optimization of cellulose as a model compound was carried out using two levels full factorial designs 23 with two centre points. At optimum process conditions 46.0 of levulinic acid yield were produced from cellulose. Subsequently utilization of lignocellulosic biomass empty fruit bunch EFB and kenaf demonstrated that 15.5 and 15.0 of levulinic acid were produced from EFB and kenaf respectively at optimum conditions. Meanwhile in the presence of ionic liquid under the same process conditions 20.0 and 17.0 of levulinic acid were produced from EFB and kenaf. This indicates that the ionic liqllid could disrupt the covalent linkages between the biomass structures dissolve the cellulose and allow the cellulose chains accessible to the chemical transformation to produce levulinic acid by using the hybrid catalyst. This study demonstrated that the combination of hybrid catalyst with ionic liquid has potential to be applied in biomass conversion to levulinic acid under adequate process conditions.
Additional Metadata
| Item Type: | Proceedings Paper |
|---|---|
| Additional Information: | Available at Perpustakaan Sultan Abdul Samad Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia TP339 B615 Call Number |
| AGROVOC Term: | Lignocellulose |
| AGROVOC Term: | Biomass |
| AGROVOC Term: | Levulinic acid |
| AGROVOC Term: | Kenaf |
| AGROVOC Term: | Hybrids |
| AGROVOC Term: | Catalysts |
| Geographical Term: | MALAYSIA |
| Depositing User: | Ms. Suzila Mohamad Kasim |
| Last Modified: | 24 Apr 2025 05:14 |
| URI: | http://webagris.upm.edu.my/id/eprint/12094 |
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