乙炔气

Determination of ethyne in liquid oxygen or liquid air by GC was introduced in this paper,where GDX-501 was used as fixed phase.

采用GDX-501为固定相，用保留值和加入已知物增加峰高法进行定性，用外标法进行定量，建立了气相色谱法测定液氧、液空中微量乙炔含量的方法。

In this work, the horizontally oriented single-walled carbon nanotubes networks deposited directly on Si wafer substrate by the buffer layer-assisted microwave plasma chemical vapor deposition method were successfully developed, using CH4, C2H2 and H2 as the source gases, and Fe and Nias catalyst materials.

本研究利用缓冲层材料辅助微波电浆化学气相沉积法，以甲烷(CH4)、乙炔(C2H2)与氢气(H2)为反应气体，镍与铁为触媒，成功地开发出在矽晶片上直接合成水平方向网状单壁碳奈米管。

The main objective of this research project is to modify the Methyl-Acetylene/propadiene selective hydrogenation reaction system of the No.3 Naphtha Cracker in CPC. The original gas phase reaction system was redesigned to a liquid phase reaction so that higher propylene selectivity was achieved and lower rates of propane and green oil were produced. To recover effectively the higher production of valuable propylene from the reaction system, the following fractionator was also redesigned.

本研究之目的在於修改中油公司三轻工场老旧的甲基乙炔／丙二烯选择性氢化气相反应系统，使成为液相反应系统，藉由液相反应的优异性，提高由MAPD氢化得到丙烯之选择率，同时降低丙烷及绿油产率，以增加丙烯产率，另亦修改丙烯精馏系统，以提升蒸馏塔提纯之效率。

Including high temperature for the pyrolysis of natural gas to produce carbon black and acetylene; steam reforming of natural gas or partial oxidation of natural gas, synthetic gas can be obtained; natural gas through chlorination, sulfide, nitrification, ammoniated oxide, oxidation can be obtained A N all kinds of derivatives; in the wet gas ethane, propane, butane and natural gas liquid condensate, and so on, the steam cracker or pyrolysis to produce ethylene, propylene and butadiene; dehydrogenation of butane oxidation or produce small Diene or acetic acid, methyl ethyl ketone, and maleic anhydride, and so on.

包括在高温下进行的天然气热裂解，主要生产乙炔和炭黑；天然气蒸汽转化或天然气的部分氧化，可制得合成气；天然气经过氯化、硫化、硝化、氨化氧化、氧化可制得甲烷的各种衍生物；湿性天然气中的乙烷、丙烷、丁烷和天然气凝析液等，经蒸汽裂解或热裂解可生产乙烯、丙烯和丁二烯；丁烷脱氢或氧化可生产丁二烯或醋酸、甲基乙基酮、顺丁烯二酸酐等。

In the reaction process of synthesizing vinyl acetate,the loss of the active species Zn2 from the surface of activated carbon results from Zn2 sublimating of gas phase and the blocking inside micropores with condensation products.

乙炔和醋酸合成醋酸乙烯的反应过程中，催化剂的失活，是由催化剂中的醋酸锌Zn2从活性炭表面上升华到气相中以及被凝聚物堵在微孔内部而引起的。

DME can also replace the use of acetylene gas as a cutting, instead of using propane as a propellant agent.

二甲醚也可以代替乙炔作为切割气使用、代替丙烷作为抛射剂使用。

In early 2004 after the establishment of industrial gas center, first of all, the implementation of the gas renovation project, using new welding and cutting gas supply to replace the points with the car company for decades the use of acetylene gas pipeline.

2004年年初工业气体中心成立后，首先实施了供气改造工程，用新型焊割气分点供气取代了同车公司使用了几十年的乙炔气管道供气。

Can be cut 1mm-60mm thick, plasma cutting machine, oxyacetylene cutting machine, dc welding machine, welding, gas welding, arc welding of carbon dioxide and other auxiliary equipment.

可割1mm-60mm厚的等离子切割机，氧乙炔切割机，直流氩弧焊机，电焊，气焊，二氧化碳保护焊等辅助设备。

In this paper,the technological calculation of a packed bed reactor of the gasphase synthesis of vinyl acetate via the acetylene method is presented,and some factors af-fecting the operations of a reactor are discussed.

介绍了乙炔法气相合成醋酸乙烯固定床反应器的工艺计算，并对影响反应器正常运行的各种因素进行了讨论。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。