Abstract
This study aims to develop a mathematical model to evaluate the energy required by pretreatment processes used in the production of second generation ethanol. A dilute acid pretreatment process reported by National Renewable Energy Laboratory (NREL) was selected as an example for the model's development. The energy demand of the pretreatment process was evaluated by considering the change of internal energy of the substances, the reaction energy, the heat lost and the work done to/by the system based on a number of simplifying assumptions. Sensitivity analyses were performed on the solid loading rate, temperature, acid concentration and water evaporation rate. The results from the sensitivity analyses established that the solids loading rate had the most significant impact on the energy demand. The model was then verified with data from the NREL benchmark process. Application of this model on other dilute acid pretreatment processes reported in the literature illustrated that although similar sugar yields were reported by several studies, the energy required by the different pretreatments varied significantly.
Original language | English |
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Pages (from-to) | 28-38 |
Number of pages | 11 |
Journal | Biomass and Bioenergy |
Volume | 72 |
Early online date | 12 Dec 2014 |
DOIs | |
Publication status | Published - 1 Jan 2015 |
Externally published | Yes |
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Dive into the research topics of 'Development of an estimation model for the evaluation of the energy requirement of dilute acid pretreatments of biomass'. Together they form a unique fingerprint.Profiles
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Chenyu Du
- Department of Physical and Life Sciences - Professor
- School of Applied Sciences
- Biorefinery Engineering and Bioprocessing Research Centre - Member
- Microbial Therapeutics and Infection Control Centre - Associate Member
- Technical Textiles Research Centre - Associate Member
- Centre for Biomimetic Societal Futures
Person: Academic