The mechanism of solid acid-catalyzed bamboo sawdust liquefaction under polyol systems
Solid acid catalysts are widely used in the field of biomass catalytic conversion owing to their advantages of low environmental pollution, easy separation and reusability. Nevertheless, there are relatively few studies on the mechanism of solid acid liquefaction for biomass. In this study, the effe...
| Main Authors: | , , , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2024-03-01
|
| Series: | Frontiers in Bioengineering and Biotechnology |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fbioe.2024.1372155/full |
| _version_ | 1827313810740871168 |
|---|---|
| author | Bin Wu Bin Wu Bin Wu Hongwei Tang Yijia Huang Mengke Zhao Long Liang Zhanghong Xie Linshan Wei Guigan Fang Guigan Fang Ting Wu |
| author_facet | Bin Wu Bin Wu Bin Wu Hongwei Tang Yijia Huang Mengke Zhao Long Liang Zhanghong Xie Linshan Wei Guigan Fang Guigan Fang Ting Wu |
| author_sort | Bin Wu |
| collection | DOAJ |
| description | Solid acid catalysts are widely used in the field of biomass catalytic conversion owing to their advantages of low environmental pollution, easy separation and reusability. Nevertheless, there are relatively few studies on the mechanism of solid acid liquefaction for biomass. In this study, the effect of acid strength and acid amount of various solid acids on the liquefaction efficiency has been investigated using waste bamboo sawdust generated from the pulp and paper industry as the raw material. In addition, the physicochemical changes of cellulose, hemicellulose and lignin during the reaction process of bamboo sawdust have been studied, and the liquefaction mechanism of bamboo sawdust under the action of various solid acids has been concluded. As a result, the liquefaction efficiency of bamboo sawdust under the polyol system of PEG400/propanetriol is mainly related to the acid strength of the solid acid, and the greater the acid strength of the solid acid, the better the catalytic effect on the bamboo sawdust, in which the residual amount of bamboo sawdust liquefaction catalyzed by the SPA catalyst is only 17.72%. Noteworthy, the most difficult component to liquefy is the crystallization of natural cellulose I into cellulose II during the reaction process, which is the primary obstacle to the complete liquefaction of bamboo sawdust by solid acid. Overall, these findings are valuable for the high value utilization of waste bamboo sawdust in the pulp and paper industry, as well as the application of solid acid catalytic technology for biomass. |
| first_indexed | 2024-04-24T22:22:40Z |
| format | Article |
| id | doaj.art-a8224ae0d18b4177a8cefbac6f9f3b7d |
| institution | Directory Open Access Journal |
| issn | 2296-4185 |
| language | English |
| last_indexed | 2024-04-24T22:22:40Z |
| publishDate | 2024-03-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Bioengineering and Biotechnology |
| spelling | doaj.art-a8224ae0d18b4177a8cefbac6f9f3b7d2024-03-20T05:04:11ZengFrontiers Media S.A.Frontiers in Bioengineering and Biotechnology2296-41852024-03-011210.3389/fbioe.2024.13721551372155The mechanism of solid acid-catalyzed bamboo sawdust liquefaction under polyol systemsBin Wu0Bin Wu1Bin Wu2Hongwei Tang3Yijia Huang4Mengke Zhao5Long Liang6Zhanghong Xie7Linshan Wei8Guigan Fang9Guigan Fang10Ting Wu11Institute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, ChinaNanjing Forestry University, Nanjing, ChinaSichuan Academy of Forestry, Chengdu, ChinaSichuan Academy of Forestry, Chengdu, ChinaSichuan Academy of Forestry, Chengdu, ChinaInstitute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, ChinaInstitute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, ChinaYibin Paper Industry Co., Ltd., Sichuan Province Engineering Technology Research Center of Bamboo Pulping and Papermaking, Yibin, ChinaChina Pulp and Paper Research Institute Co., Ltd., Beijing, ChinaInstitute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, ChinaShandong Huatai Paper Co., Ltd., Dongying, Shandong Province, ChinaInstitute of Chemical Industry of Forest Products, Chinese Academy of Forestry, Nanjing, ChinaSolid acid catalysts are widely used in the field of biomass catalytic conversion owing to their advantages of low environmental pollution, easy separation and reusability. Nevertheless, there are relatively few studies on the mechanism of solid acid liquefaction for biomass. In this study, the effect of acid strength and acid amount of various solid acids on the liquefaction efficiency has been investigated using waste bamboo sawdust generated from the pulp and paper industry as the raw material. In addition, the physicochemical changes of cellulose, hemicellulose and lignin during the reaction process of bamboo sawdust have been studied, and the liquefaction mechanism of bamboo sawdust under the action of various solid acids has been concluded. As a result, the liquefaction efficiency of bamboo sawdust under the polyol system of PEG400/propanetriol is mainly related to the acid strength of the solid acid, and the greater the acid strength of the solid acid, the better the catalytic effect on the bamboo sawdust, in which the residual amount of bamboo sawdust liquefaction catalyzed by the SPA catalyst is only 17.72%. Noteworthy, the most difficult component to liquefy is the crystallization of natural cellulose I into cellulose II during the reaction process, which is the primary obstacle to the complete liquefaction of bamboo sawdust by solid acid. Overall, these findings are valuable for the high value utilization of waste bamboo sawdust in the pulp and paper industry, as well as the application of solid acid catalytic technology for biomass.https://www.frontiersin.org/articles/10.3389/fbioe.2024.1372155/fullsolid acid catalystsbamboo sawdustbiomass liquefactionpolyol systemscrystalline conversion |
| spellingShingle | Bin Wu Bin Wu Bin Wu Hongwei Tang Yijia Huang Mengke Zhao Long Liang Zhanghong Xie Linshan Wei Guigan Fang Guigan Fang Ting Wu The mechanism of solid acid-catalyzed bamboo sawdust liquefaction under polyol systems Frontiers in Bioengineering and Biotechnology solid acid catalysts bamboo sawdust biomass liquefaction polyol systems crystalline conversion |
| title | The mechanism of solid acid-catalyzed bamboo sawdust liquefaction under polyol systems |
| title_full | The mechanism of solid acid-catalyzed bamboo sawdust liquefaction under polyol systems |
| title_fullStr | The mechanism of solid acid-catalyzed bamboo sawdust liquefaction under polyol systems |
| title_full_unstemmed | The mechanism of solid acid-catalyzed bamboo sawdust liquefaction under polyol systems |
| title_short | The mechanism of solid acid-catalyzed bamboo sawdust liquefaction under polyol systems |
| title_sort | mechanism of solid acid catalyzed bamboo sawdust liquefaction under polyol systems |
| topic | solid acid catalysts bamboo sawdust biomass liquefaction polyol systems crystalline conversion |
| url | https://www.frontiersin.org/articles/10.3389/fbioe.2024.1372155/full |
| work_keys_str_mv | AT binwu themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT binwu themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT binwu themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT hongweitang themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT yijiahuang themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT mengkezhao themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT longliang themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT zhanghongxie themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT linshanwei themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT guiganfang themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT guiganfang themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT tingwu themechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT binwu mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT binwu mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT binwu mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT hongweitang mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT yijiahuang mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT mengkezhao mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT longliang mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT zhanghongxie mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT linshanwei mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT guiganfang mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT guiganfang mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems AT tingwu mechanismofsolidacidcatalyzedbamboosawdustliquefactionunderpolyolsystems |