School of Chemistry and Chemical Engineering, South China University of Technology, Guangzhou 510640, Guangdong, PR China.
Bioresour Technol. 2013 Dec;150:352-8. doi: 10.1016/j.biortech.2013.10.026. Epub 2013 Oct 16.
Four lignocellulosic biomasses, water hyacinth, rice straw, mango leaves and spruce were pretreated by ionic liquid (IL) to enhance anaerobic digestion. The effect of pretreatment conditions, such as alkyl chain length of IL, temperature, time and operation cycle on lignocellulosic composition, structure and biogas production was evaluated. The enhancement of biogas production by [C4mim]Cl pretreatment at 120°C for 2 h decreases in the order of water hyacinth>spruce>rice straw>mango leaves. Higher methane production of regenerated rice straw and mango leaves could reach 233 and 125 mL/g carbohydrates under 140°C or 2 h and 140°C for 8, respectively. Furthermore, the technology of aqueous biphasic systems was developed to recovery IL, and the recovery rate of ILs was in the range of 54.3-94.6%.
四种木质纤维素生物质，水葫芦、水稻秸秆、芒果叶和云杉，用离子液体（IL）预处理以增强厌氧消化。预处理条件（如 IL 的烷基链长、温度、时间和操作周期）对木质纤维素组成、结构和沼气产量的影响进行了评估。[C4mim]Cl 在 120°C 下预处理 2 小时，沼气产量的提高顺序为水葫芦>云杉>水稻秸秆>芒果叶。再生水稻秸秆和芒果叶在 140°C 或 2 小时和 140°C 下 8 小时的甲烷产量分别可达 233 和 125 mL/g 碳水化合物。此外，还开发了用于回收 IL 的双水相体系技术，IL 的回收率在 54.3-94.6%范围内。
