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, CHEN Shiyi, MA Shiwei, et al. Carbon formation on iron-based oxygen carriers during CH4 reduction period in chemical looping hydrogen generation process[J]. Chemical Engineering Journal, 2017, 325...出热量供系统自热运行.以甲烷自热重整制氢为例,该三床系统对应总反应4,利用化学链燃烧为化学链重整提供热量,实现二氧化碳的近零能耗分离,直接制取高纯度蓝氢,简化传统工艺中所需的水气变换,空气分离,二氧化碳分离等多个单元操作,高度集成强化了热化学低碳制氢过程. 图1 三床化学链制氢示意图 Fig. 1 Schematic of three-reactor chemical looping......
Synthesis and characteristics of large-scale ZnO rods by wet chemical method WEI Su-feng(魏素凤), JIANG Qing(蒋 青), LIAN Jian-she(连建设) Key Laboratory of Automobile Materials, Ministry of Education... on the bare glass using a wet chemical method under different experimental parameters, such as the reactant concentration and the growth time. The microstructure of the ZnO rods was characterized by X-ray......
-chemical properties of binderless briquetting of ilmenite concentrate [J]. The Journal of Ore Dressing, 2008, 10: 23-29. [19] HU T, LV X W, BAI C G, LUN Z G, QIU G B. Reduction behaviour of panzhihua... ferric-pseudobrookite phase was found at higher temperature. Direct reduction of oxidized sample-coke cylindrical briquettes was successfully achieved for phase transition from titaniferous magnetite......
Metallurgy,Central South University, Changsha 410083, China) Abstract: A homogenous mixture precursor of Al2O3+C was prepared by the chemical precipitation method and AlN powders were fabricated by carbon thermal reduction nitridation of the precipitated precursor. The effect factors on the nitridation conditions and the properties of AlN powders, including nitridation temperature, pH value......
Chemical stability of doped BaCeO3-BaZrO3 solid solutions in different atmospheres WANG Ling1,L2,GUO Hongxia1,LI Yuehua1,DAI Lei1,FAN Lihua1 (1.College of Chemical Engineering and Biotechnology, Hebei Polytechnic University, Tangshan 063009, China;2.U) Jingde(College of Chemical Engineering and Biotechnology, Hebei Polytechnic University, Tangshan 063009, China) Abstract:BaCe0.45Zr0.45M0.1O3-δ......
place in the process of heating. The reduction of laterite nickel ore consists of three stages. Chemical reaction is the controlling unit in the first stage, the activation energies...程可分为3个阶段,第一阶段的控速环节是化学反应,预焙烧和未焙烧红土镍矿的活化能分别为90.21和63.12 kJ/mol；第二阶段和第三阶段控速环节是扩散,红土镍矿的活化能逐渐增大.关键词:红土镍矿；动力学；热分析；直接还原Dehydration mechanism and reduction process dynamics of laterite nickel oreZHANG......
J. Cent. South Univ. (2019) 26: 132-145 DOI: https://doi.org/10.1007/s11771-019-3988-8 Effects of basicity and temperature on mineralogy and reduction behaviors of high-chromium vanadium-titanium... Nature 2019 Abstract: The effects of basicity and temperature on the reduction process of Hongge high-chromium vanadium-titanium magnetite (HCVTM) sinter were investigated in this work. The main......
Synergetic catalysis of ceria and titania for selective reduction of NO沈岳松,郑大海,杨波,倪松波,祝社民College of Materials Science and Engineering,State Key Laboratory of Materials-Oriented Chemical Engineering,Nanjing University of Technology摘 要:The promotional effect of the interaction between titania and ceria on the catalytic performance for selective reduction......
Synergetic catalysis of ceria and titania for selective reduction of NO沈岳松,郑大海,杨波,倪松波,祝社民College of Materials Science and Engineering,State Key Laboratory of Materials-Oriented Chemical Engineering,Nanjing University of Technology摘 要:The promotional effect of the interaction between titania and ceria on the catalytic performance for selective reduction......
化学还原法制备石墨薄片及其表征研究 刘继宪1,王瑶1,唐建国1,丛菲1,黄林军1,黄震1,王蕊1 (1.青岛大学国家重点实验室培育基地,青岛大学杂化材料研究所,青岛,266071) 摘要:利用氧化石墨的层离特性,采用化学还原法制备了石墨薄片材料,并采用红外光谱,X射线衍射,元素分析,透射电镜,原子力显微镜和扫描电镜对产品进行了表征和分析.结果表明,制备出的石墨薄片直径为1~3μm,厚度为2~4nm,为层状结构的非晶体,具有褶皱的固有属性,且极易发生团聚现象. 关键词:石墨薄片; 氧化石墨; 化学还原; 表征; graphite nanosheets; graphite oxide; chemical reduction; characterization; [全文内容正在添加中] ......
