H_2SH2S
1.The cell was used to investigate the electrochemical corrosion behavior of 16Mn steel coated with a thin electrolyte layer containing H_2S and compared with that in bulk aqueous solution of H_2S, making use of polarization curve technique and electrochemical impedance spectroscopy (EIS).利用自行设计的测量金属在薄层液膜下腐蚀的三电极电化学电池,通过极化曲线和交流阻抗技术(EIS)研究了16Mn钢在含H2S薄层液膜下的电化学行为,并与之在大量H2S电解质溶液中的电化学行为进行了比较。
2.The influences of the acidity of solution,temperature,immersion time and polarization potentials on corrosion behavior of X70 steel in weak acidic solutions with H_2S were studied by means of potentiodynamic polarization curves and electrochemical impendence spectroscopy.用动电位扫描法和电化学阻抗谱研究了X70钢在含H2S弱酸性溶液中的腐蚀行为,讨论了酸度、温度、浸泡时间、极化电位对X70钢腐蚀行为的影响。
3.A new technology of removing H_2S with solution containing Cu~(2+) was developed in this thesis,CuS produced was oxidized by superfluous Cu~(2+) and Cu~(2+) can be recovered from the oxidation reaction of CuCl~-_2 with air,then the circulation was totally realized.开发了一种用含Cu2+的溶液吸收H2S,并用Cu2+自氧化CuS制取硫磺的新工艺,Cu2+的还原产物CuC l2-由空气氧化再生,实现循环。
3)hydrogen sulphideH2S
1.Thermal-gravimetric analysis(TGA),gas chromatogram(GC) and mass spectrum(MS) method were used to study the characteristics of hydrogen sulphide that released from the co-pyrolysis of biomass and coal blends.采用热重分析和色谱、质谱偶联技术,对3种秸秆类生物质(稻秆、麦秆、玉米秆)与一种烟煤混合慢速热解中产生的H2S气体进行了在线检测,研究生物质对煤热解析出H2S气体的影响。
2.Hydrogen sulphide in waste gases was m.以研制的光导纤维反射分光光度计为仪器,建立了根据浸渍醋酸铅的纸带与硫化氢反应生成黑色硫化铅斑点而改变纸带相对反射率,达到对H2S测量的新方法。
4)H 2SH2S
5)combatH_2S防H2S
6)wet H_2S湿H2S
1.Comparative studies on the failure behaviour of the liquefied petroleum gas(LPG) spherical tanks,which were manufactured from 16MnR steel and SPV50Q steel respectively and working under the wet H_2S environment,were conducted.对16MnR钢和SPV50Q钢液化石油气(LPG)球罐在湿H2S环境下的失效行为进行了对比研究。
2.Stress corrosion cracking(SCC)of SPV50Q steel and HAZ were studied by the method of stress corrosion test for pro-cracked wedge-open loading WOL specimen in Wet H_2S,and critical stress intensity factor and propagation rate of matrix and HAZ in Wet H_2S was measured.用楔形张开加载(WOL)预裂纹试样研究了SPV50Q钢在湿H2S环境中的抗应力腐蚀性能。
3.As stress corrosion cracking occurs in some refinery equipment service in the wet H2S environment,comparisons between RBI analysis result of wet H_2S cracking of refinery equipment and NACE statistic data are drawn in this paper,and some proposals are put forward to avoid stress corrosion cracking of these pressure vessels.在湿H2S环境下炼油厂部分装置往往出现应力腐蚀开裂现象,本文对这些装置的RBI统计结果与美国腐蚀工程协会的统计进行对比,分析了产生偏差的原因,对湿H2S环境下承压设备的使用提出了一些建议。
延伸阅读
128毫米防空炮105 毫米防空炮开发完毕后, 莱茵金属于 1396 年着手开发口径更大的防空炮, 并于 1937 年开发完成. 于 1942 年投入量产. 和 105 毫米防空炮一样配备于重要城市, 及装设在火车车卡中成为流动防空阵地. 另外还有双联装的128 毫米防空炮 (128 mm flakzwilling) 装设在德国国内大城市及首都柏林的高射炮塔中, 大约生产 34 门。性能诸元重量 (公斤) 27,000炮身长度 (毫米) 7,835垂直射角负 3 度 - 正 87 度水平射角 360 度射速 (分) 12 - 14 发炮口初速 (米/秒) 880射程 (米) 14,800