Knowledge Management System Of Institute of process engineering,CAS
| Multiscale modeling of biomass pretreatment for optimization of steam explosion conditions | |
| Alternative Title | Chem. Eng. Sci. |
| Zhang, Yuzhen; Chen, Hongzhang | |
| 2012-06-18 | |
| Source Publication | CHEMICAL ENGINEERING SCIENCE
 |
| ISSN | 0009-2509 |
| Volume | 75Issue:75Pages:177-182 |
| Abstract | Steam explosion is the most cost-effective and widely used method for pretreating lignocellulosic materials. Unlike other hydrothermal pretreatment technologies, it is characterized by physical tearing effects. The severity factor cannot represent the effects of instantaneous decompression but it can depict the effects of high-temperature cooking. Using the theories of heat transfer, momentum transfer, and brittle fracture mechanics as bases, we analyze physical tearing in instantaneous decompression. Moisture content of materials w(opt) is optimized by maintaining temperature T (T <-> w(opt)), and chip size d is optimized with discharge port area A (A proportional to d(2)). The chip size, moisture content of materials, and discharge port area are then incorporated into the severity factor. The enriched severity factor and the relationship among operation parameters, material property parameters, and equipment parameters serve as engineering references in designing the equipment and selecting the conditions for steam explosion technology. Such equipment and conditions are suitable for use under any given set of materials, products, and treatment targets. (c) 2012 Elsevier Ltd. All rights reserved.; Steam explosion is the most cost-effective and widely used method for pretreating lignocellulosic materials. Unlike other hydrothermal pretreatment technologies, it is characterized by physical tearing effects. The severity factor cannot represent the effects of instantaneous decompression but it can depict the effects of high-temperature cooking. Using the theories of heat transfer, momentum transfer, and brittle fracture mechanics as bases, we analyze physical tearing in instantaneous decompression. Moisture content of materials w(opt) is optimized by maintaining temperature T (T <-> w(opt)), and chip size d is optimized with discharge port area A (A proportional to d(2)). The chip size, moisture content of materials, and discharge port area are then incorporated into the severity factor. The enriched severity factor and the relationship among operation parameters, material property parameters, and equipment parameters serve as engineering references in designing the equipment and selecting the conditions for steam explosion technology. Such equipment and conditions are suitable for use under any given set of materials, products, and treatment targets. (c) 2012 Elsevier Ltd. All rights reserved. |
| Keyword | Steam Explosion Biomass Pretreatment Momentum Transfer Biochemical Engineering Process Control Energy |
| Subtype | Article |
| WOS Headings | Science & Technology ; Technology |
| DOI | 10.1016/j.ces.2012.02.052 |
| URL | 查看原文 |
| Indexed By | SCI |
| Language | 英语 |
| WOS Keyword | COMPLEX-SYSTEMS ; WHEAT-STRAW ; PHENOMENOLOGICAL KINETICS ; SEVERITY PARAMETER ; FRACTIONATION ; HYDROLYSIS ; LIGNOCELLULOSICS ; ETHANOL ; SSF ; SHF |
| WOS Research Area | Engineering |
| WOS Subject | Engineering, Chemical |
| WOS ID | WOS:000303826800018 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Version | 出版稿 |
| Identifier | http://ir.ipe.ac.cn/handle/122111/6403 |
| Collection | 研究所（批量导入） |
| Affiliation | Chinese Acad Sci, Natl Key Lab Biochem Engn, Inst Proc Engn, Beijing 100190, Peoples R China |
| Recommended Citation GB/T 7714 | Zhang, Yuzhen,Chen, Hongzhang. Multiscale modeling of biomass pretreatment for optimization of steam explosion conditions[J]. CHEMICAL ENGINEERING SCIENCE,2012,75(75):177-182. |
| APA | Zhang, Yuzhen,&Chen, Hongzhang.(2012).Multiscale modeling of biomass pretreatment for optimization of steam explosion conditions.CHEMICAL ENGINEERING SCIENCE,75(75),177-182. |
| MLA | Zhang, Yuzhen,et al."Multiscale modeling of biomass pretreatment for optimization of steam explosion conditions".CHEMICAL ENGINEERING SCIENCE 75.75(2012):177-182. |
| Files in This Item: | ||||||
| File Name/Size | DocType | Version | Access | License | ||
| Multiscale modeling （218KB） | 限制开放 | CC BY-NC-SA | Application Full Text | |||
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