Knowledge Management System Of Institute of process engineering,CAS
| Sufficient premixing enhances enzymatic hydrolysis efficiency of lignocellulose at high-solids loading | |
| Shi, Xin1,2; Wang, Lan1,2; Sun, Lele1,2; Chen, Hongzhang1,2 | |
| 2022-09-15 | |
| Source Publication | CHEMICAL ENGINEERING JOURNAL
 |
| ISSN | 1385-8947 |
| Volume | 444Pages:8 |
| Abstract | Low efficiency of the high-solids enzymatic hydrolysis process leads to a sharp increase in energy consumption and enzyme dosage, which hinders the development of lignocellulose biorefinery. Inhomogeneity of trace amounts of enzymes and bulk substrates mixing may be a main barrier to the efficiency. In this study, the mixing degree of enzyme and substrate at high-solids loadings were explored. The 30% solids loading group took 52.9 times longer to reach the same mixing degree as the 5% solids loading group. The mixing process is divided into two stages: reactor-scale mixing and pore-scale mixing, the latter being the rate-limiting step at high-solids loadings. Sufficient premixing improved pore-scale mass transfer, resulting in 194.25% enzymatic hydrolysis efficiency improvement at the enzyme dosage of 5 FPU/g dry matter, cellulase dosage decreased from 40 FPU/g dry matter to 5 FPU/g dry matter and earlier liquefaction at 20% solids loading. Periodic vibration as an efficient premixing method enhanced high-solids enzymatic hydrolysis efficiency. This study is a step forward to the industrial application of high-solids enzymatic hydrolysis. |
| Keyword | Premixing High-solids enzymatic hydrolysis Pore-scale mass transfer Periodic vibration Lignocellulose |
| DOI | 10.1016/j.cej.2022.136612 |
| Language | 英语 |
| WOS Keyword | MASS-TRANSFER ; ETHANOL ; WATER ; VIBRATION ; BIOMASS ; SACCHARIFICATION ; LIQUEFACTION ; SUGAR ; FLOW |
| Funding Project | National Key Research and Development Program of China[2019YFB1503800] ; Transformational Technologies for Clean Energy and Demonstration (Strategic Priority Research Program of the Chinese Academy of Sci-ences)[XDA 21060300] |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Environmental ; Engineering, Chemical |
| Funding Organization | National Key Research and Development Program of China ; Transformational Technologies for Clean Energy and Demonstration (Strategic Priority Research Program of the Chinese Academy of Sci-ences) |
| WOS ID | WOS:000800384100001 |
| Publisher | ELSEVIER SCIENCE SA |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/53510 |
| Collection | 中国科学院过程工程研究所 |
| Corresponding Author | Wang, Lan |
| Affiliation | 1.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing Key Lab Biomass Refining Engn, 1 Bei Er Jie, Beijing 100190, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China |
| Recommended Citation GB/T 7714 | Shi, Xin,Wang, Lan,Sun, Lele,et al. Sufficient premixing enhances enzymatic hydrolysis efficiency of lignocellulose at high-solids loading[J]. CHEMICAL ENGINEERING JOURNAL,2022,444:8. |
| APA | Shi, Xin,Wang, Lan,Sun, Lele,&Chen, Hongzhang.(2022).Sufficient premixing enhances enzymatic hydrolysis efficiency of lignocellulose at high-solids loading.CHEMICAL ENGINEERING JOURNAL,444,8. |
| MLA | Shi, Xin,et al."Sufficient premixing enhances enzymatic hydrolysis efficiency of lignocellulose at high-solids loading".CHEMICAL ENGINEERING JOURNAL 444(2022):8. |
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