Solvent-free lignin recovered by thermal-enzymatic treatment using fixed-bed reactor technology – Economic assessment
| Autor: | Lisa M. Schmidt, Víctor Pérez Martínez, Martin Kaltschmitt |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Environmental Engineering Materials science 020209 energy Carbohydrates Bioengineering Fraction (chemistry) 02 engineering and technology Thermal treatment Lignin 01 natural sciences chemistry.chemical_compound Bioreactors 010608 biotechnology Thermal 0202 electrical engineering electronic engineering information engineering Sugar Waste Management and Disposal Flexibility (engineering) Renewable Energy Sustainability and the Environment Hydrolysis General Medicine Biorefinery Pulp and paper industry Enzymes chemistry Scientific method Solvents |
| Zdroj: | Bioresource Technology. 268:382-392 |
| ISSN: | 0960-8524 |
| DOI: | 10.1016/j.biortech.2018.07.107 |
| Popis: | The economic viability of producing lignin by thermal-enzymatic treatment in a high-pressure fixed-bed reactor is investigated for the first time. In this direction, different advantages (e.g. recovery of low-odor sulfur-free lignin, high process flexibility) and disadvantages (e.g. high investment for high-pressure equipment) of this technology are considered. Regarding process flexibility, four different operating modes (i.e. flow through, circulation) are investigated by varying process parameters and applications of the C5 sugar fraction. Therefore, a combined modelling approach is applied by using overall biorefinery models and a predictive fixed-bed model. At optimum process conditions, lignin can be produced at a competitive price (395 €/tLignin) when comparing to other technical lignins. This result is achieved by using the fixed-bed reactor only for thermal treatment, with the water consumption being the most important factor affecting the cost of lignin production. Compared to that the C5 sugar recovery of the pretreatment is negligible. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect