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药渣热解过程NOx前驱物生成特征及规律研究
其他题名Characteristics of NOx precursors and their formation mechanism during pyrolysis of herb residues
詹昊1,2; 阴秀丽1; 黄艳琴1; 张晓鸿1,2; 袁洪友1; 谢建军1; 吴创之1
2017-03
发表期刊燃料化学学报
ISSN0253-2409
卷号45期号:3页码:279-288
摘要以凉茶药渣(HTW)和青霉素菌渣(PMW)为对象,结合热重(TGA)和X射线光电子能谱(XPS)表征,在水平管式反应器上对比研究了热解NO_x前驱物的生成特征,考察了热力因素和燃料理化特性的影响。结果表明,蛋白质N为主要原料N结构,HTW占全部,PMW超过80%,决定了主导NO_x前驱物为NH_3;热力因素不改变此主导性,但会影响前驱物生成路径,改变组分比例及总产率,其强弱顺序为:高温快速〉高温慢速〉低温快速≈低温慢速;基于高温快速热解,大粒径和低含水率可分别降低总产率5%-11%和4%-6%;燃料组分影响NH_3产率,低温或慢速下,N结构差别使PMW〉HTW;高温快速下,
其他摘要Based on two herb residues-herbal tea waste (HTW) and penicillin mycelial waste (PMW), characteristics of NOx precursors during their pyrolysis were investigated in a horizontal tubular reactor with the help of XPS and TGA technologies.Effects of thermal conditions and physicochemical properties of fuels were discussed and compared.The results demonstrate that protein-N is the main nitrogen form for both HTW and PMW, determining the dominance of NH3 among NOx precursors at any operational conditions.Thermal conditions would still change the ratio and total yield by intrinsically influencing their formation pathways.Subsequently, the effects could be sequenced as follows: high temperatures with rapid pyrolysis 〉 high temperatures with slow pyrolysis 〉 low temperatures with rapid pyrolysis ≈ low temperatures with slow pyrolysis.Moreover, at high temperatures with rapid pyrolysis, increase in particle size or decrease in moisture content would result in reduction of total yield by 5%-11% and 4%-6%, respectively.In addition, NH3 yield is produced at low temperatures or slow pyrolysis with sequence of PMW 〉 HTW and vice versa, depending on components in the fuels.Consequently, analyses on nitrogen forms in char and nitrogen distribution indicate that total yield of 20%-45% is observed to be independent of fuel type under typical pyrolysis conditions, which may provide helpful guidance for the clean reutilization of herb residues.
关键词凉茶药渣 青霉素药渣 NOx前驱物 热解 NH3 总产率 HTW PMW NOx precursors pyrolysis total yield
语种中文
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/16699
专题中国科学院广州能源研究所
通讯作者吴创之
作者单位1.中国科学院广州能源研究所,中国科学院可再生能源重点实验室,广东省新能源和可再生能源重点实验室,广东广州510640;
2.中国科学院大学,北京100049
第一作者单位中国科学院广州能源研究所
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GB/T 7714
詹昊,阴秀丽,黄艳琴,等. 药渣热解过程NOx前驱物生成特征及规律研究[J]. 燃料化学学报,2017,45(3):279-288.
APA 詹昊.,阴秀丽.,黄艳琴.,张晓鸿.,袁洪友.,...&吴创之.(2017).药渣热解过程NOx前驱物生成特征及规律研究.燃料化学学报,45(3),279-288.
MLA 詹昊,et al."药渣热解过程NOx前驱物生成特征及规律研究".燃料化学学报 45.3(2017):279-288.
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