微囊藻生物质超临界水气化反应的产氢优化

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英文篇名：Hydrogen Production Optimization in Microcystis Supercritical Water Gasification 作者：张会文 ; 张晓曼 ; 肖航 ; 孙淑雲 ; 李敏 ; 杨帆 ; 周海云 英文作者：ZHANG Hui-wen;ZHANG Xiao-man;XIAO Hang;SUN Shu-yun;LI Min;YANG Fan;ZHOU Hai-yun;School of Civil Engineering and Architecture,Anhui University of Technology;Nanjing Water Environmental Institute Co.Ltd.;Jiangsu Provincial Academy of Environmental Science; 关键词：微囊藻生物质 ; 超临界水气化 ; 氢气 ; 能耗平衡 英文关键词：Microcystis;;supercritical water gasification;;hydrogen;;energy consumption balance 中文刊名：中国给水排水 英文刊名：China Water & Wastewater 机构：安徽工业大学建筑工程学院;南京河海环境研究院有限公司;江苏省环境科学研究院; 出版日期：2019-04-01 出版单位：中国给水排水 年：2019 期：07 基金：安徽省自然科学基金资助项目(1808085QE175);; 安徽工业大学青年教师科研基金资助项目(QZ201616);; 江苏省环保科研课题(2016013) 语种：中文; 页：80-84 页数：5 CN：12-1073/TU ISSN：1000-4602 分类号：X52;TK6

摘要

微囊藻水华的常态化暴发致使每年产生大量难处理的高含水率废弃生物质,而超临界水气化技术可越过高能耗的脱水工艺实现其减量化、无害化处理及资源化利用。为此,以微囊藻生物质作为超临界水气化反应产氢原料,探究温度、介质密度及停留时间等反应条件对产氢特性的影响,优化微囊藻生物质超临界水气化反应工艺的能源转化效率和处理效果。试验结果表明,微囊藻生物质的产氢能力接近于微绿球藻、栅藻等常规能源化藻类生物质,且碱式添加剂的掺入能够极大程度上优化产氢效果。在500℃、NaOH掺入量为5. 0%条件下,H_2的产量可达17 mol/kg,且其含量(物质的量百分数)达到77. 39%。
        The regular bloom of Microcystis results in a large amount of refractory waste Microcystis biomass with high water content every year. However,supercritical water gasification (SCWG) can realize reduction,harmless treatment and resource utilization of Microcystis biomass compared with dehydration processes with high energy consumption. The experiment focused on the process of supercritical water gasification reaction where Microcystis biomass was used as the hydrogen production raw material. The influences of reaction conditions such as temperature,medium density and residence time on the characteristics of hydrogen production were explored,and energy conversion efficiency and treatment effect of the process were optimized. The results indicated that the hydrogen production capacity of Microcystis was close to that of regular energy production microalgae,such as Nannochloropsis sp. and S. latissima,and the addition of alkaline additives could optimize hydrogen production to a great extent.When reaction temperature and dosage of NaOH were 500 ℃ and 5. 0%,the production of H_2 could reach 17 mol/kg with purity of 77. 39%.

引文

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