Optimization of liquid hot water pretreatment on Hybrid Pennisetum anaerobic digestion and its effect on energy efficiency
Optimization of liquid hot water pretreatment on Hybrid Pennisetum anaerobic digestion and its effect on energy efficiency
复制标题
杂交狼尾草厌氧消化液体热水预处理优化及其对能源效率的影响
DOI：
10.1016/j.enconman.2020.112718
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发表时间：
2020-04
影响因子：
10.4
通讯作者：
Zhenhong Yuan
中科院分区：
文献类型：
--
作者：
Xihui Kang;Yi Zhang;Richen Lin;Lianhua Li;Feng Zhen;Xiaoying Kong;Yongming Sun;Zhenhong Yuan
为了克服木质纤维素生物质固有的复杂性并提高其生物转化效率，采用中心复合表面响应方法对中国南方典型能源作物狼尾草厌氧消化制生物甲烷的液体热水预处理过程变量（温度、反应时间和液固比）进行了优化。温度、反应时间和水含量分别在 160–200 °C、20–60 分钟和 60–90 mL 之间变化。预处理材料的生物甲烷产量被认为是对不同工艺条件的响应变量。结果显示，未经处理的杂交狼尾草的生物甲烷潜力为 218.6 L/kg 挥发性固体 (VS)（相当于 62.6% 的生物降解性）。液体热水预处理对生物甲烷产率的影响是显着的。预处理强度低于 4.55 导致生物甲烷产量增加。然而，进一步加剧的严重性导致生物甲烷产量降低。杂交狼尾草在 175 °C 预处理 35 min 时获得最佳生物甲烷产量（290.6 L/kg VS），生物降解率最高为 83.2%。能量平衡表明，在最佳预处理条件下，理论上能量转换效率最高可达76.1%。如果包括过程能源输入，通过适当的热回收，过程能源效率可以实现 51.7%。
To overcome the inherent complexity of lignocellulosic biomass and improve its biological conversion efficiency, the central composite surface response methodology was used to optimize the process variables (temperature, reaction time and liquid-to-solid ratio) in liquid hot water pretreatment for biomethane production from the anaerobic digestion of HybridPennisetum(a typical energy crop in southern China). Temperature, reaction time and water content were varied between 160–200 °C, 20–60 min and 60–90 mL respectively. The biomethane yields from pretreated material were considered as response variables to different processes conditions. Results showed untreated HybridPennisetumhad a biomethane potential of 218.6 L/kg volatile solid (VS) (corresponding to a biodegradability of 62.6%). The effect of liquid hot water pretreatment on the biomethane yield was distinct. Pretreatment severities less than 4.55 resulted in increased biomethane yields. However, further increasing the severity led to lower biomethane yields. The optimum biomethane yield (290.6 L/kg VS) was obtained from pretreated Hybrid Pennisetum at 175 °C for 35 min, with the highest biodegradability of 83.2%. Energy balance showed that, under the optimal pretreatment condition, the highest energy conversion efficiency of 76.1% was attained in theory. If the process energy inputs are included, a process energy efficiency of 51.7% could be realized with proper heat recovery.
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影响因子：
5.3
作者：
Lianhua Li;Ying Li;Yongming Sun;Zhenhong Yuan;Pengmei Lv;Xihui Kang;Yi Zhang;Gaixiu Yang
通讯作者：
Lianhua Li;Ying Li;Yongming Sun;Zhenhong Yuan;Pengmei Lv;Xihui Kang;Yi Zhang;Gaixiu Yang
探索杂交狼尾草在碱性亚硫酸盐预处理过程中的表面特征和静电特性，以增强酶水解能力
影响因子：
11.4
作者：
Yang Ming;Wang Jingfeng;Hou Xincun;Wu Juying;Fan Xifeng;Jiang Fan;Tao Pan;Wang Fan;Peng Pai;Yang Fangxia;Zhang Junhua
通讯作者：
Zhang Junhua
DOI：
10.1007/978-3-319-56457-9_3
发表时间：
2017
期刊：
--
影响因子：
--
作者：
Lingping Xiao;Guo-yong Song;R. Sun
通讯作者：
Lingping Xiao;Guo-yong Song;R. Sun
影响因子：
9
作者：
Yi Zhang;Xihui Kang;Zhongming Wang;Xiaoying Kong;Lianhua Li;Yongming Sun;Shunni Zhu;Siran Feng;Xinjian Luo;Pengmei Lv
通讯作者：
Yi Zhang;Xihui Kang;Zhongming Wang;Xiaoying Kong;Lianhua Li;Yongming Sun;Shunni Zhu;Siran Feng;Xinjian Luo;Pengmei Lv
影响因子：
11.2
作者：
Panagiotis Tsapekos;P. Kougias;L. Treu;S. Campanaro;I. Angelidaki
通讯作者：
Panagiotis Tsapekos;P. Kougias;L. Treu;S. Campanaro;I. Angelidaki