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Effect of Particle Microstructure on Sulfuric Acid Distribution During Biomass Hydrolysis
Qi, W.; Zhuang, X.; Zhang, Y.; Wang, Q.; Yu, Q.; Yuan, Z.
2015
发表期刊ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
卷号37期号:23页码:2524-2534
摘要When sulfuric acid is used to hydrolyze biomass, besides the macro factors (reaction temperature, acid concentration, reaction time, and ratio of solid to liquid), the diffusion rate of the acid into the biomass particle is also an important factor that affects the hydrolysis. In this article, pine wood sawdust was taken as test material (temperature: 433.15-463.15 K; sulfuric acid concentration: 10 Kg/m(3); ratio of L/S: 9; reaction time: 0-1,800 sec) and a distribution model of sulfuric acid was established by studying the diffusion characteristics in the heterogeneous phase consisting of sawdust and acid solution. Comparison between the calculated results from the model and experimental ones proved that the established model could satisfactorily predict the diffusion process of sulfuric acid into the sawdust particle during the reaction. Based on the distribution model, the effects of particle microstructure on the sulfuric acid concentration distribution were investigated. It indicates that particle size and porosity are the important factors that affect sulfuric acid diffusion in hydrolysis and the effect of porosity includes that from tortuosity. This study has a numerical description of sulfuric acid distribution in the bulk flow and within the particle during the reaction, and is of great significance in the further study of biomass hydrolysis mechanism.
文章类型Article
关键词Acid Hydrolysis Biomass Diffusion Model Microstructure Sulfuric Acid
WOS标题词Science & Technology ; Technology ; Life Sciences & Biomedicine
DOI10.1080/15567036.2012.688089
研究领域[WOS]Energy & Fuels ; Engineering ; Environmental Sciences & Ecology
关键词[WOS]DIFFUSION ; PRETREATMENT ; WOOD
收录类别SCI
语种英语
WOS类目Energy & Fuels ; Engineering, Chemical ; Environmental Sciences
WOS记录号WOS:000366277000004
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/10924
专题中国科学院广州能源研究所
作者单位Chinese Acad Sci, Key Lab Renewable Energy, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
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GB/T 7714
Qi, W.,Zhuang, X.,Zhang, Y.,et al. Effect of Particle Microstructure on Sulfuric Acid Distribution During Biomass Hydrolysis[J]. ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS,2015,37(23):2524-2534.
APA Qi, W.,Zhuang, X.,Zhang, Y.,Wang, Q.,Yu, Q.,&Yuan, Z..(2015).Effect of Particle Microstructure on Sulfuric Acid Distribution During Biomass Hydrolysis.ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS,37(23),2524-2534.
MLA Qi, W.,et al."Effect of Particle Microstructure on Sulfuric Acid Distribution During Biomass Hydrolysis".ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS 37.23(2015):2524-2534.
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