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加氢合成
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  hydrogenation synthesis
     STUDY ON THE HYDROGENATION SYNTHESIS OF m-XYLENEDIAMINE BY MODIFIED RANEY-Ni CATALYST
     改性Raney Ni催化剂用于加氢合成间苯二甲胺
短句来源
     The two step hydrogenation synthesis of 1,4-butanediol(BAN)from 1,4-butyne- diol(BYN)by Raney nickel catalyst bears an unique main series reaction with side reactions.
     1,4-丁炔二醇用 Raney 镍两步加氢合成1,4-丁二醇具有独特的连串主反应及副反应。
短句来源
     The Research of Pilot Test of H_2S by the hydrogenation synthesis of Sulfur
     硫磺加氢合成硫化氢的中试研究
短句来源
  “加氢合成”译为未确定词的双语例句
     Methanol synthesis from CO/CO_2 hydrogenation over Cu/Zn/Al/Mn catalyst
     Cu/Zn/Al/Mn催化剂上CO/CO_2加氢合成甲醇特性研究
短句来源
     Studies on CuO-ZnO-Al_2O_3/HZSM-5 catalyst for dimethyl ether synthesis from CO_2/H_2
     二氧化碳加氢合成二甲醚CuO-ZnO-Al_2O_3/HZSM-5型催化剂的研究
短句来源
     Modified Cu/ZnO/Al_2O_3 Catalysts for γ-Butyrolactone Synthesis
     添加组分对Cu/ZnO/Al_2O_3催化剂顺酐加氢合成γ-丁内酯活性的影响
短句来源
     Study of CO Hydrogenation for Methanol Synthesis over Cu-Mn~(2+)/SiO_2 Catalyst
     CO加氢合成甲醇Cu-Mn~(2+)/SiO_2催化剂的研究
短句来源
     Effect of CO on CO 2 hydrogenation to methanol over a Cu/Zn/Al/Mn catalyst
     Cu/Zn/Al/Mn催化剂上CO_2加氢合成甲醇的CO助催化作用
短句来源
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  相似匹配句对
     Coumarin fluorescent dyes such as C.
     合成了C.
短句来源
     Catalytic Hydrqenation for Synthesis of p minphenol
     催化加氢合成对氨基苯酚
短句来源
     N,N,N?
     合成了 N,N,N?
短句来源
     STUDY ON SYNTHESIS OF DIHYDROTERPINEOL BY CATALYTIC HYDROGENATION
     催化加氢合成二氢松油醇的研究
短句来源
查询“加氢合成”译词为用户自定义的双语例句

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A method-pulse of N_2O-chromatographic technique for determining active copper surface area of various copper catalysts is presented.It is

根据氧化亚氮在表面零价铜上分解放出氮的特征反应,建立了脉冲氧化亚氮-色谱法测定各种含铜催化剂活性表面积的方法。对商品氧化铜、实验室中碳酸钠分解硝酸铜所制成的活性氧化铜、Raney 铜、工业脱氧铜催化剂、一氧化碳加氢低压合成甲醇ICI-51型催化剂以及目前正在开发的合金铜-锌催化剂等均进行了活性铜表面积的测量。结果表明,上述催化剂的活性表面积仅占总表面积的一部分,甚至是极少的一部分。约为3—30%。将一系列合金铜锌催化剂的活性表面积数值与其在实验室中一氧化碳加氢合成甲醇的催化活性进行关联,发现甲醇时空收率与催化剂的活性夜面积成正比,亦即反应速度与活性表面积呈线性关系。通过对催化剂表面铜使氧化亚氮分解并吸附氧的本质的探讨,证实了一个氧原子吸附在两个相邻的表面铜原子上的设想,为含铜催化剂对一氧化碳加氢合成甲醇反应活性组分问题的探讨提供了有用的信息。

Under various reaction conditions and feed compositions, catalyst surface characteristics and catalytic reactivity were tested by means of XPS, in situ IR, transient response etc. The conclusion is that Cu0 is the common center for adsorbing and activating CO, CO2 and H2 molecules and that the promot- ing effect of CO2 on methanol synthesis reaction is mainly due to the creation of new reaction pathways. The suggested multiple path mechanism can properly explain the experimental results and provide basis for...

Under various reaction conditions and feed compositions, catalyst surface characteristics and catalytic reactivity were tested by means of XPS, in situ IR, transient response etc. The conclusion is that Cu0 is the common center for adsorbing and activating CO, CO2 and H2 molecules and that the promot- ing effect of CO2 on methanol synthesis reaction is mainly due to the creation of new reaction pathways. The suggested multiple path mechanism can properly explain the experimental results and provide basis for direct synthesis of fuel methanol.

本文运用XPS、过渡应答、原位红外等多种物化测试手段在不同反应条件及原料配比下,对Cu/ZnO/Al2O3催化剂进行了表面表征和活性测试。结果断定:Cu0是吸附与活化 H2、 CO和 CO2的共同中心; CO2对反应的加速作用主要是由于开辟了新的反应途径。本文提出的 CO2存在下 CO加氢合成甲醇反应的多途径机理解释了实验结果,为直接合成燃料甲醇提供了依据。

Cu-Zn-Al alloy catalyst is highly effective in the synthesis of metha-nol from CO and H_2.The catalyst is prepared by selective dissolution ofAl and Zn from a cast Cu-Zn-Al alloy consisting of CuAl_2(Zn).Thepurposes of this study is to characterize the composition and microstruc-ture of the alloy sample as well as catalysts before and after treatmentwith N_2O pulses,by means of chemical analysis,X-ray diffraction andelectromicroprobe techniques combined with measurements of BET surfacearea and pore distribution.The...

Cu-Zn-Al alloy catalyst is highly effective in the synthesis of metha-nol from CO and H_2.The catalyst is prepared by selective dissolution ofAl and Zn from a cast Cu-Zn-Al alloy consisting of CuAl_2(Zn).Thepurposes of this study is to characterize the composition and microstruc-ture of the alloy sample as well as catalysts before and after treatmentwith N_2O pulses,by means of chemical analysis,X-ray diffraction andelectromicroprobe techniques combined with measurements of BET surfacearea and pore distribution.The results obtained have shown that the surface composition of thecatalyst is closely similar to that of ICI catalyst.It also has the same ac-tivity for methanol synthesis.However ICI catalyst is composed of mixedoxides.Its composition is homogeneous,while Cu-Zn-Al alloy catalyst isheterogeneous,that is,the surface of particles is porous and the centre issolid.

本文采用化学分析、BET比表面和孔分布测量、X射线衍射及电子探针技术研究了一氧化碳加氢合成甲醇新型铜锌铝合金催化剂的组成和结构特征。实验结果表明,催化剂比表面较低,但活性表面积比例高,孔分布范围在25—300(?),最可几孔径为90—110(?)。对合成甲醇活性较高的催化剂颗粒进行电子探针元素面扫描,发现其表面元素组成与工业上广泛使用的ICI催化剂基本相同。对与氧化亚氮接触后的催化剂进行X射线衍射测量,发现有明显的氧化亚铜相,由此可以认为,在合金催化剂上零价铜是活性的,而且一价铜也具有相对的稳定性。

 
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