Abstrakti
The dissolution and solvolysis processes of enzymatic hydrolysis lignin (EHL) in ethylene glycol are investigated. Ethylene glycol exhibits high EHL solubility and achieves complete EHL dissolution at room temperature. Gaussian simulation reveals that van de Waals interactions between ethylene glycol and EHL, including C-H⋯O and lone pair⋯π interactions, break the π-π stacking in EHL, achieving complete EHL dissolution. EHL is partly depolymerized in ethylene glycol at 200 °C even without a catalyst due to the strong van de Waals interactions. When NaOH and Ni are used as co-catalysts, EHL is efficiently depolymerized at 200 °C, and the overall monomer yield reaches 18.8 wt%. Fourier transform infrared spectroscopy (FT-IR) and molecular dynamics simulation results indicate that the adsorption of ethylene glycol over Ni surface hinders the adsorption of lignin fragments and monomers. Hence, EHL catalytic solvolysis in ethylene glycol occurs in the liquid phase, where OH− of NaOH promotes the EHL linkage breakage and active hydrogen atoms formed on Ni surface stabilize the active monomers.
| Alkuperäiskieli | Englanti |
|---|---|
| Artikkeli | 142256 |
| Sivumäärä | 11 |
| Julkaisu | Chemical Engineering Journal |
| Vuosikerta | 463 |
| Varhainen verkossa julkaisun päivämäärä | 16 maalisk. 2023 |
| DOI - pysyväislinkit | |
| Tila | Julkaistu - 1 toukok. 2023 |
| OKM-julkaisutyyppi | A1 Alkuperäisartikkeli tieteellisessä aikakauslehdessä |
Rahoitus
This work has received funding from the European Union’s Horizon 2020 research and innovation program , (BUILDING A LOW-CARBON, CLIMATE RESILIENT FUTURE: SECURE, CLEAN AND EFFICIENT EN-ERGY) under Grant Agreement No 101006744. The content presented in this document represents the views of the authors, and the European Commission has no liability in respect of the content. Y.S. Sang and G. Li would like to express their gratitude to both the China Scholarship Council ( 202006250156 , 202208320030 ) and the EU-101006744 project. This work has received funding from the European Union's Horizon 2020 research and innovation program, (BUILDING A LOW-CARBON, CLIMATE RESILIENT FUTURE: SECURE, CLEAN AND EFFICIENT EN-ERGY) under Grant Agreement No 101006744. The content presented in this document represents the views of the authors, and the European Commission has no liability in respect of the content. Y.S. Sang and G. Li would like to express their gratitude to both the China Scholarship Council (202006250156, 202208320030) and the EU-101006744 project.
YK:n kestävän kehityksen tavoitteet
Tämä tuotos edistää seuraavia kestävän kehityksen tavoitteita:
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SDG 7 – Edullinen ja puhdas energia
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SDG 12 – Vastuullinen kulutus ja tuotanto
Sormenjälki
Sukella tutkimusaiheisiin 'Enzymatic hydrolysis lignin dissolution and low-temperature solvolysis in ethylene glycol'. Ne muodostavat yhdessä ainutlaatuisen sormenjäljen.Projektit
- 1 Päättynyt
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EHLCATHOL: Chemical transformation of enzymatic hydrolysis lignin (EHL) with catalytic solvolysis to fuel commodities under mild conditions
Li, Y. (Vastuullinen johtaja), Mohammadi, A. (Projektin jäsen), Sang, Y. (Projektin jäsen), Arkis, N. (Projektin jäsen), Wang, J. (Projektin jäsen), Gong, H. (Projektin jäsen), Singh, A. (Projektin jäsen), Yong, X. (Projektin jäsen), Zhang, Y. (Projektin jäsen), Li, X. (Projektin jäsen), Long, J. (Projektin jäsen), Agyingi, C. (Projektin jäsen), Fan, L. (Projektin jäsen), Li, X. (Projektin jäsen), Kaur, P. (Projektin jäsen), Tian, W. (Projektin jäsen), Li, G. (Projektin jäsen) & Saravanan Kasipandi, S. (Projektin jäsen)
01/11/2020 → 31/10/2024
Projekti: EU H2020 Framework program
Lehtileikkeet
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New Findings from Aalto University in the Area of Chemicals and Chemistry Described (Enzymatic Hydrolysis Lignin Dissolution and Low-temperature Solvolysis In Ethylene Glycol)
Li, Y. & Yang, M.
02/05/2023
1 kohde/ Medianäkyvyys
Lehdistö/media: Esiintyminen mediassa
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