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选择性加氢     
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  selective hydrogenation
     Modification of La on Co/γ-Al_2O_3 Catalyst for Selective Hydrogenation
     La对选择性加氢催化剂Co/γ-Al_2O_3的改性研究
短句来源
     Selective Hydrogenation of Maleic Anhydride over Cu-SnO_2/Al_2O_3
     在Cu-SnO_2/Al_2O_3催化剂上顺酐的选择性加氢
短句来源
     Selective Hydrogenation of 2,5-Dichloronitrobenzene Catalyzed by Polymer-Stabilized Ru-Pt/γ-Al_2O_3 Bimetallic Catalyst
     聚合物稳定的Ru-Pt/γ-Al_2O_3双金属催化剂催化2,5-二氯硝基苯选择性加氢
短句来源
     Catalytic Properties of Supported Pd/TiO_2 and Pd-Ag/TiO_2 Catalysts for Selective Hydrogenation of Acetylene
     负载型Pd/TiO_2和Pd-Ag/TiO_2催化剂的乙炔选择性加氢催化性能
短句来源
     A Kinetic Study of the Selective Hydrogenation of α-Methylstyrene by the Fe-Mo/Al_2O_3 Catalyst
     α-甲基苯乙烯在Fe-Mo/Al_2O_3催化剂上选择性加氢反应动力学的研究
短句来源
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  selectivity hydrogenation
     Blend-fatty acid Selectivity Hydrogenation Manufacture Reactionlevel Oleic acid
     混合脂肪酸选择性加氢制反应级油酸
短句来源
     STUDY ON CONDITIONS OF CATALYSTS PREPARATION WITH OIL AND FAT SELECTIVITY HYDROGENATION
     油脂选择性加氢催化剂制备条件的研究
短句来源
     Discussion on the Mixed Aliphatic Acid Selectivity Hydrogenation
     混合脂肪酸选择性加氢探讨
短句来源
     Mixed aliphatic acid selectivity hydrogenation is a very important operation in the chemical industry,and this is a logical route in producing high-purity-grade oleic acid.
     混合脂肪酸选择性加氢在化学工业中是一个非常重要的环节[1],同时也是生产高纯度油酸的合理途径。
短句来源
     Nano-nickel was widely used as a new, high activity and high selectivity hydrogenation catalyst in chemical industry.
     纳米镍超微粒子作为一种新型、高效、高选择性加氢催化剂在化工催化领域有着广阔的前景。
短句来源
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  selective hydrotreating
     SELECTIVE HYDROTREATING OF CRACKING NAPHTHA FROM DCC AND MIO PROCESSES
     DCC与MIO汽油馏分的选择性加氢
短句来源
     The content refers to the separation of 5 carbon fraction from FCC naphtha, selective hydrotreating of the 5 carbon fraction, the processing technologies of TAME, 5 carbon alkylation, and theflexibility and economics of the integration of the etherifiation and alkylation. The blending effects ofTAME and 5 carbon alkylate are also discussed.
     包括从FCC汽油中切割C5馏分、C5馏分的选择性加氢、TAME工艺、C5烷基化和醚化与烷基化联合工艺的灵活性及经济性。
短句来源
     After selective hydrotreating, the DCC naphtha can either be used as a high octane component in gasoline pool or be used as feedstock to produce BTX with aromatics extraction.
     DCC汽油可以经选择性加氢改善其安定性,生产高辛烷值汽油调合组分; DCC汽油经加氢精制后还可作为生产芳烃的抽提原料。
短句来源
     The C 5 fraction of the MIO naphtha after selective hydrotreating can be separated for production of TAME by etherification, and the remaining portion of the naphtha is a good gasoline component with high octane number.
     MIO汽油(包含C5的汽油馏分)经选择性加氢,蒸馏出的C5馏分可以直接进醚化装置生产TAME; 其余部分是很好的高辛烷值汽油调合组分。
短句来源
     SINOPEC Luoyang Company adopted catalytic cracking gasoline selective hydrodesulfrization Technology(OCT-M) developed by Fushun Petrochemical Reserch Institute,to revamp straight distillation diesel fuel hydrotreating unit to catalytic cracking gasoline selective hydrotreating unit for reducing sulfur conent of gasoline full fraction.
     中国石化洛阳分公司采用抚顺石油化工研究院开发的催化汽油选择性加氢脱硫技术(OCT-M),将直馏柴油加氢装置改为汽油选择性加氢装置,以此来降低汽油混合全馏分的含硫质量分数。
短句来源
  “选择性加氢”译为未确定词的双语例句
     The improved bimetallic Pd-based catalyst(Pd+M/Al_2O_3) could be used to process different feeds (benzene(C_6) fraction,BTX(C_6-C_9) fraction and whole fraction) for olefin removal reaction.
     改进后的双金属Pd基催化剂(Pd+M/Al2O3)可用于不同原料的重整生成油(苯(C6)馏分、BTX(C6~C9)馏分、全馏分)的选择性加氢脱烯烃反应。
短句来源
     Following the catalyst, CuSO_4-KBH_4-H_2O, another new catalyst for acetylene reduction, AgNO_3-KBH_4-H_2O, under moderate condition has been suggested. At the ordinary pressure and the temperature range of 17.0 to 30.0℃, apparent activation energy of acetylene to ethylene is 49.8KJ.
     本文继CuSO—KBH_4—H_2O之后,又给出一个在温和条件下,使乙炔还原为乙烯的新的催化剂体系:AgNO_3—KBH_4—H_2O,并在常压及17~30℃范围内,求得乙炔选择性加氢成乙烯的表观活化能为49.8KJ.
短句来源
     The results showed that 93 % conversion of 2 - propyl - 2 - heptenal and 96 % selectivity to 2 - propyl heptanal were obtained respectively under the reaction conditions of pressure 1.0-1.5 MPa, temperature 413 K, molar ratio of H2 to 2 - propyl - 2 - heptenal 2.5:1, and LHSV 1.0-2.5 h-1.
     在0.5-2.0 MPa,373-433 K,氢气/烯醛摩尔比2.5:1,液时体积空速0.5-3.0 h-1的实验范围内,筛选出合适的反应条件,实现高选择性加氢,制得目的产物2-丙基庚醛。
短句来源
     The mechanism and kinetics-of acetylene hydrogenation catalyzedby AuCl_3-KBH_4-H_2O system are investigated at room temperature.
     本文介绍了在温和条件下,AuCl_3-KBH_4-H_2O 催化体系对乙炔的选择性加氢活性及其动力学规律的考察。
短句来源
     Under the conditions of 70℃,P_(H_2) =1.0MPa,reaction time 70min,the conversion of p-ClC_6H_4NO_2 catalyzed by 0.50Ru/0.50Pd-TPPTS catalyst is 100%.
     在PH2=1.0 MPa,70℃,反应70 m in的条件下,双金属催化剂0.50 Ru/0.50 Pd-TPPTS催化对-氯硝基苯中硝基选择性加氢反应时转化率达到100%,生成对-氯苯胺选择性为92.3%.
短句来源
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  selective hydrogenation
Their catalytic performances for the selective hydrogenation of cinnamaldehyde to hydrocinnamaldehyde were investigated.
      
Selective Hydrogenation of Diethyl Disulfide to Ethanethiol in the Presence of Sulfide Catalysts
      
The absorption and catalytic properties of palladium catalysts (0.01% Pd) based on leached soda-silica fiberglass supports were studied in the selective hydrogenation of acetylene as the constituent of an ethylene-acetylene mixture.
      
Selective hydrogenation reactions of diene and acetylene hydrocarbons to olefins are typical of these catalysts.
      
The role of the crystal faces of the metal particles and of chemisorbed hydrogen species in selective hydrogenation is established.
      
更多          
  selectivity hydrogenation
High-selectivity hydrogenation of cinnamaldehyde over platinum supported on aluminosilicates
      
  selective hydrotreating
Selective hydrotreating of catalytically cracked naphtha produced on zeolite-containing aluminosilicate catalyst
      
"Selective" Hydrotreating of Catalytic Naphtha Cuts
      
The possibility of "selective" hydrotreating of mixed catalytic and thermal naphthas was demonstrated.
      


A new, highly active selective catalyst which consists of nickleboron or nickle-boron-rare element has been prepared. The catalyst is satisfying in partial hydrogenation of cyclopentadiene to cyclopentene.

本文制备出一类新型的高活性和高选择性的镍—硼或镍—硼—稀土元素催化剂。特别适用于环戊二烯选择性加氢为环戊烯。反应可在液相、室温、常压(1 atm.)的温和条件下进行,当使用Ni-B催化剂时可得95-97%的转化率和99%的选择性,而Ni-B-Sm,Ni-B-Dy催化剂可得99-97%。的转化率和99%的选择性。

A series of unsupported Fe-Mo catalysts in which the atomic ratio of iron andmolybdenum ranged from 0.36 to 1.55 were prepared by the coprecipitation method.Together with the activity in selective catalytic bydrogenation of α-methylstyrone onthe unsupported Fe-Mo catalysts, their phase composition and valences of Fe and Moare reported in this paper. As a chief method of investigation used in this work, MSss-bauer spectroscopy has proved to be available for Fe-Mo systems. The experimental results have revealed...

A series of unsupported Fe-Mo catalysts in which the atomic ratio of iron andmolybdenum ranged from 0.36 to 1.55 were prepared by the coprecipitation method.Together with the activity in selective catalytic bydrogenation of α-methylstyrone onthe unsupported Fe-Mo catalysts, their phase composition and valences of Fe and Moare reported in this paper. As a chief method of investigation used in this work, MSss-bauer spectroscopy has proved to be available for Fe-Mo systems. The experimental results have revealed thai: (1)Fe~ (MoO~)3 and a-FeOOI-I are theprincipal components formed from iron in these catalyst samples, where the valenceof Fe is +3 and that of Mo is +6; (2) Fe~(MoO4)s gives a certain contribution to theactivity for selective catalytic hydrogenation of a-methy]styrene; (3)a-FeOOYI existsas a catalytic non-active component in the Fe-Mo catalyst; meanwhile it displays assuperparamagnetic c]ustens with a particle size less then 200A; (4) a-FeOOtt in theFe-Mo catalyst samples seems more stable to heat than in its pure state; i. e. theexistence of molybdenum in these catalysts increases the thermal stability of a-FeO01-I.

本文讨论了用穆斯堡尔谱为主要手段,研究共沉淀法制备的无载体铁钼催化剂的组成、价态及选择性加氢活性的初步结果。

A new catalytic system for acetylene reduction,CuSO_4-KBO_4-H_2O under moderate conditions has been obtained.Over the temperature range of 15.O℃ to 27.5℃,the apparent activation energy of reduction of acetylene to etylene is 16.0 kcal/mole and the initial transforming number is 0.48μMC_2H_4/μM Cu,min,at 25.0℃.The selectivity of reduction is 98% when the concentration of CuSO_4 is 10~-.M~5 The experiments show that the reduction is cis addition,that hydrogen in the product comes from water,the solvant,but not...

A new catalytic system for acetylene reduction,CuSO_4-KBO_4-H_2O under moderate conditions has been obtained.Over the temperature range of 15.O℃ to 27.5℃,the apparent activation energy of reduction of acetylene to etylene is 16.0 kcal/mole and the initial transforming number is 0.48μMC_2H_4/μM Cu,min,at 25.0℃.The selectivity of reduction is 98% when the concentration of CuSO_4 is 10~-.M~5 The experiments show that the reduction is cis addition,that hydrogen in the product comes from water,the solvant,but not from KBH_4, the reducing agent,and that catalytic active centre may be the monoatomic copper not the copper cluster of many atoms. On the basis of experimental results, a four step reaction is proposed and the inhibitory effect of Cu~(++) in the Na_2MoO_4—L-Cys system has been illustrated.

本文提出了一个在温和条件下,使乙炔还原为乙烯的新型的催化剂体系:CuSO_4-KBH_4-H_2O在常压及15.0—27.5℃温度范围内,求得乙炔选择性加氢成乙烯的表观活化能是16.0千卡/摩尔.25℃的初始转化数是0.48μMC_2H_4/μMCu·min。当CusO_4浓度达10~(-5)M时,反应选择性为98%。实验指出还原反应是顺式加成,氢来自溶剂水,而不是还原剂KBH_4,实验结果还表明活性中心可能是单个的铜原子并非铜原子簇,从而在此基础上提出一个四步反应图式,合理地解释了二价铜离子在Na,MoO_4—L-Cys催化体系中的阻抑作用。

 
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