deoxygenation相关论文
Visible-light-driven photochemical Cadogan-type cyclization has been discovered.The organic D-A type photosensitizer 4Cz......
In this work,we report for the first time the in-situ catalytic pyrolysis of Pavlova sp.microalgae,which has been perfor......
Metalimnion became anoxic in a eutrophic reservoir during the warm season, although the hypolimnion became successfully ......
报道一种简便高效地将亚砜脱氧还原的方法.在100℃条件下,无需外加溶剂,一系列脂肪和芳香亚砜可与二甲氨基硫代甲酰氯反应,以中等......
Selective preparation of light aromatic hydrocarbons from catalytic fast pyrolysis vapors of coal ta
The catalytic cracking of coal tar asphaltene (CTA) pyrolysis vapors was carried out over transition met-alion modified ......
The low-temperature coal tar contains a considerable number of oxygen-containing compounds,which results in poor quality......
We have developed a new type of iridium catalysts.In the presence of formic acid,the catalysts are used to highly ch......
本文通过对荣华二采区10...
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
Factors Controlling Deoxygenation of “Floodwater” Overlying an Acid Sulfate Soil: Experimental Model
An incubation experiment was conducted to simulate the effect of flooding on water deoxygenation in acid sulfate soil fl......
Compound 1 as a key intermediate of 1, 7, 9-trideoxytaxol was synthesized in ten steps from a biosynthetically available......
研究了乙醇和木炭脱氧剂在固定床和循环反应器中的脱氧燃烧反应。温度为360℃,反应尾气氧含量可低于质量分率1.0×10^-3,循环反应器与气液交......
对CZDM膜制氮机组降氧工艺与氧气浓度变化规律进行了研究,利用CZDM膜制氮机组产生的低氧浓度气体,采用一系列降氧工艺使试验仓粮堆内......
由于能源需求的增加,环境问题和化石燃料的枯竭,以植物油作为原料制备的生物燃油将在未来的运输燃料中扮演重要角色.以C_(18)脂肪酸(O......
介绍了锅炉氧腐蚀机理及除氧的途径,对各类除氧方式的除氧效果进行了分析与比较,介绍了SLY膜真空除氧器的除氧原理、工艺流程、除......
本文综述了甲烷无氧芳构化研究 的国内外进展,讨论了甲烷无氧芳构化的影响因素(包括活性中心、焙烧温度、空速、催化剂 表面酸性、......
Factors Controlling Deoxygenation of "Floodwater" Overlying an Acid Sulfate Soil: Experimental Model
An incubation experiment was conducted to simulate the effect of flooding on water deoxygenation in acid sulfate soil fl......
采用真空烧结炉对氧含量为4.1×10^−3的工业铌粉进行镁热还原,然后酸洗,以降低铌粉的氧含量。通过研究还原温度、还原时间和......
分析了热水供暖系统中氧腐蚀机理及危害,针对热水锅炉,管网及散热器的日常养护,提价节热力除氧,化学除氧,真空除氧和解吸除氧4种除氧方法......
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以掺杂了不同TiO2含量的Al2O3作为载体,通过等体积浸渍法制备了一系列不同TiO2含量的CuMnCe/TiO2-Al2O3催化剂,用BET、H2-TPR、XRD......
介绍了高压氧舱排氧设备的改造升级,应用了排氧流量显示、排氧浓度监控、自动通风换气、排氧汇流管回旋式设计、立井式排氧通道等......
胆汁酸选择脱氧的新方法李开喜,徐正邦,余锐,赵华明(四川大学化学系,成都610064)关键词胆汁酸;冠醚;钾;脱氧反应;自由基醇的自由基脱氧方法在天然产......
对近年来二卤卡宾与羰基化合物的反应机理研究进行了总结,指出二卤羰基Yilde为反应的中间体,并对影响二卤羰基Ylide的稳定性及后续反应的因素如......
二氯卡宾与四苯基环戊二烯酮(1)反应放出CO,并生成偕二卤化物(3)、二氯环氧乙烯(4)以及双键加成物(5)。羰基叶立德的芳香性结构及其“中介型”爸象......
研究了二卡宾与取代苯乙酮的反应机理。在取代苯乙酮与二溴卡宾的反应中,由于形成的羰基叶立德中间体的非平面构象,使得1,3-偶极加成难以......
由偶氮二异丁腈引发次磷酸产生次磷酸根自由基,以链式自由基反应机制脱除紫杉烷类化合物结构中的含氧基团,简单、高效地合成了紫杉烷......
论述了北31-75注水管线的成垢原因是由于水中溶解氧含量高,流速高,造成管线不均匀腐蚀,再加上水中大量二氧化硅的存在,促使了垢的生成,最终导......
国内目前常用的锅炉除氧方法,无论是物理法(热力除氧、解析除氧、真空除氧)还是化学除氧(亚硫酸钠直接加入法、铁屑法、联氨法),应......
使用一系列的硅铝催化剂(SiO2-Al2O3,HY,Hβ和HZSM-51催化解聚木质素转化为芳香烃和苯酚类化合物.研究了催化剂结构和其解聚木质素性能......
Impact of Chain Length of Saturated Fatty Acids during Their Heterogeneously Catalyzed Deoxygenation
Fatty acids with different chain length were deoxygenated in the absence of hydrogen (caprylic acid (CA), lauric acid (L......
论述了LCZ(Y)20-1脱氧离心传质机的设计原理,产品的设计参数和性能指标,产品的制造以及试验结果。......
An efficient and practical radical chain deoxygenation method by phosphorus centered radicals generated from hypophospho......
The deoxygenation reaction of heptanones, cycloheptanone, cycloheptatrienone or substituted cycloheptatrienone with diha......
The deoxygenation reaction of heptanones, cycloheptanone, cycloheptatrienone or substituted cycloheptatrienone with diha......
介绍了中性水质中催化剂用量对催化联氨除氧效果的影响。试验条件为:温度10℃、20℃、30℃.初始溶解氧含量分别为10.0-10.8mg/L(10℃)、8.2......
以煤液化油衍生油为溶剂,在热萃取装置上研究了大唐胜利褐煤等低阶煤的热萃取性能,考察了热萃取温度、热萃取时间、溶煤比、溶剂类型......
为了充分利用含氧煤层气,采用硫化物氧化法,利用热重和固定床反应器研究了含氧煤层气脱氧过程中温度、流速及催化剂等因素的影响.研究......