Meeuwes, Thom, T.R. (2020) Ionic liquid as a tool for cost-effective fractionation of biomass to obtain lignin with high β-O-4-content. Bachelor's Thesis, Chemical Engineering.
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Abstract
The fractionation of lignocellulosic biomass allows for obtaining lignin, the world most abundant aromatic polymer in the world. The extraction of lignin could replace chemicals and materials derived from petrol. Ionic liquids (ILs) have been seen as suitable solvents for extraction of lignin, due to its excellent solubility for natural polymers. The wide variety of ILs makes it an adjustable solvent to fractionate biomass. Moreover, the process of each ionic liquid can be tuned to effectively optimize the fractionation process. Several process variables are being discussed in this review, like the adjustment of the temperature, dissolution time and the addition of an acid. With a goal to separate the lignin in high quality from the biomass cost effectively. The quality of lignin is being determined by the amount of βO-4-linkages in lignin after pretreatment. One of the cheap ILs [TEA][HSO4] was proposed as a good candidate for this process, due to its low cost of 1.24 $/kg. However, the recycling rate of the ILs seems to be the hindrance of cost effective biomass fractionation, emphasis on effective reuse of the ILs is necessary to make the process industrial-relevant
| Item Type: | Thesis (Bachelor's Thesis) |
|---|---|
| Supervisor name: | Deuss, P.J. and Heeres, H.J. |
| Degree programme: | Chemical Engineering |
| Thesis type: | Bachelor's Thesis |
| Language: | English |
| Date Deposited: | 07 Jul 2020 07:08 |
| Last Modified: | 07 Jul 2020 07:08 |
| URI: | https://fse.studenttheses.ub.rug.nl/id/eprint/22472 |
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