Effect of lignin-derived and furan compounds found in lignocellulosic hydrolysates on biomethane production
Effect of lignin-derived and furan compounds found in lignocellulosic hydrolysates on biomethane production
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DOI：
10.1016/j.biortech.2011.10.060
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发表时间：
2012-01-01
影响因子：
11.4
通讯作者：
Carrere, Helene
中科院分区：
文献类型：
--
作者：
Barakat, Abdellatif;Monlau, Florian;Carrere, Helene
生物乙醇生产中木质纤维素生物质预处理产生的水解产物可用于生产沼气。此类水解产物富含木糖，但也含有木质素聚合物或低聚物以及酚类和呋喃化合物，例如丁香醛、香草醛、HMF、糠醛。本研究的目的是调查这些副产品对木糖生产生物甲烷的影响。还单独研究了副产物的厌氧消化。没有观察到对木糖厌氧消化的抑制，并从呋喃中获得甲烷：430 mL CH4/g 糠醛和 450 mL CH4/g HMF；来自酚类化合物：453 mL CH4/g 丁香醛和 105 mL CH4/g 香草醛；并且在较小程度上来自木质素聚合物：14 至 46 mL CH4/g MV。不同天然聚合物（木质素磺酸盐、有机溶剂和硫酸盐木质素）和合成脱氢聚合物的使用表明，木质素聚合物中较高的S/G比和较低的分子量会导致更大的甲烷产量。 (C) 2011 Elsevier Ltd. 保留所有权利。
Hydrolysates resulting from the lignocellulosic biomass pretreatment in bioethanol production may be used to produce biogas. Such hydrolysates are rich in xylose but also contain lignin polymers or oligomers as well as phenolic and furan compounds, such as syringaldehyde, vanillin, HMF, furfural. The aim of this study was to investigate the impact of these byproducts on biomethane production from xylose. The anaerobic digestion of the byproducts alone was also investigated. No inhibition of the anaerobic digestion of xylose was observed and methane was obtained from furans: 430 mL CH4/g of furfural and 450 mL CH4/g of HMF; from phenolic compounds: 453 mL CH4/g of syringaldehyde and 105 mL CH4/g of vanillin; and, to a lesser extent, from lignin polymers: from 14 to 46 mL CH4/g MV. The use of different natural polymers (lignosulfonates, organosolv and kraft lignins) and synthetic dehydrogenative polymers showed that higher S/G ratios and lower molecular weights in lignin polymers led to greater methane production. (C) 2011 Elsevier Ltd. All rights reserved.