Journal
COMPUTERS & CHEMICAL ENGINEERING
Volume 117, Issue -, Pages 159-170Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.compchemeng.2018.05.020
Keywords
Vanillin production; Kraft lignin; Process intensification; Process design; Biorefinery
Funding
- Thailand Research Fund [DPG5880003]
- Institutional Research Grant (The Thailand Research Fund) [IRG 5780014]
- Chulalongkorn University [RES_57_411_21_076]
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This work employed a systematic methodology and process intensification concepts to improve the state-of-the-art vanillin production process from kraft lignin. Particular focus was put on the use of different product separation techniques, including solvent extraction using ethyl acetate, benzene, organic nanofiltration, and adsorption by zeolite. The performance of each proposed process was evaluated in terms of energy consumption, process economics, and environmental impacts. Simulation of the vanillin production processes was performed using the Aspen Plus program while the economic and environmental analyses were conducted using economic analysis tools and LCSoft, respectively. The results revealed that the process using adsorption by zeolite is the best alternative. It offered a slight improvement in energy consumption while its economic result showed 7.37% improvement. It also caused the least environmental impact in all categories. (C) 2018 Elsevier Ltd. All rights reserved.
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