The non-isothermal decomposition reaction of Nd[(C_5H_ 10NS_2)_3(C_ 12H_8N_2)] were carried out by means of TG-DTG and the thermal decomposition mechanism, and the associated kinetics was investigated. The kinetic par...The non-isothermal decomposition reaction of Nd[(C_5H_ 10NS_2)_3(C_ 12H_8N_2)] were carried out by means of TG-DTG and the thermal decomposition mechanism, and the associated kinetics was investigated. The kinetic parameters are obtained from an analysis of the TG-DTG curves at different heating rate by integral and differential methods. The most probable kinetic model function of the decomposition reaction is Maple Power of n=3/2, f(α)=2/3α -1/2 and the apparent activation energy E is 116.67 kJ·mol -1 and the pre-exponential factor lg[A/s -1] is 7.6891.展开更多
his paper deals with the results of comopition of C5-C15 hydrocarbons in the regions of the Bransfield Strait.The multivariate statistical analysis is made to recognize the characteristics of the sediments,resulting i...his paper deals with the results of comopition of C5-C15 hydrocarbons in the regions of the Bransfield Strait.The multivariate statistical analysis is made to recognize the characteristics of the sediments,resulting in that the C5-C15 hydrocarbons contain n-alkanes, iso-alkanes,cyclo-alkanes,aromatic compounds and their substituted compounds as well.The multivariate statistical analysis also shows that stations G25 and G-27 have the extreme values of factor after rotation.展开更多
利用隔壁精馏塔替代混合碳五馏分原有分离流程中的脱丁烷塔和碳五预分离塔,通过Aspen Plus V12软件对混合碳五馏分的提纯流程进行稳态模拟,在此基础上运用灵敏度分析工具,对隔壁精馏塔的操作参数进行优化。结果表明:采用隔壁精馏塔替代...利用隔壁精馏塔替代混合碳五馏分原有分离流程中的脱丁烷塔和碳五预分离塔,通过Aspen Plus V12软件对混合碳五馏分的提纯流程进行稳态模拟,在此基础上运用灵敏度分析工具,对隔壁精馏塔的操作参数进行优化。结果表明:采用隔壁精馏塔替代脱丁烷塔和碳五预分离塔,最佳原料进料位置为第11块塔板、最佳质量回流比为5、最佳侧线采出位置为第7块塔板、最佳侧线采出量为500 kg h,气相回流位置为第37块塔板,液相回流位置为第12块塔板;在相同进料条件和相同碳五馏分纯度的前提下,与采用常规精馏工艺相比,采用隔壁塔精馏工艺时冷却能耗降低17.04%,加热能耗降低16.69%。展开更多
文摘The non-isothermal decomposition reaction of Nd[(C_5H_ 10NS_2)_3(C_ 12H_8N_2)] were carried out by means of TG-DTG and the thermal decomposition mechanism, and the associated kinetics was investigated. The kinetic parameters are obtained from an analysis of the TG-DTG curves at different heating rate by integral and differential methods. The most probable kinetic model function of the decomposition reaction is Maple Power of n=3/2, f(α)=2/3α -1/2 and the apparent activation energy E is 116.67 kJ·mol -1 and the pre-exponential factor lg[A/s -1] is 7.6891.
文摘his paper deals with the results of comopition of C5-C15 hydrocarbons in the regions of the Bransfield Strait.The multivariate statistical analysis is made to recognize the characteristics of the sediments,resulting in that the C5-C15 hydrocarbons contain n-alkanes, iso-alkanes,cyclo-alkanes,aromatic compounds and their substituted compounds as well.The multivariate statistical analysis also shows that stations G25 and G-27 have the extreme values of factor after rotation.
文摘利用隔壁精馏塔替代混合碳五馏分原有分离流程中的脱丁烷塔和碳五预分离塔,通过Aspen Plus V12软件对混合碳五馏分的提纯流程进行稳态模拟,在此基础上运用灵敏度分析工具,对隔壁精馏塔的操作参数进行优化。结果表明:采用隔壁精馏塔替代脱丁烷塔和碳五预分离塔,最佳原料进料位置为第11块塔板、最佳质量回流比为5、最佳侧线采出位置为第7块塔板、最佳侧线采出量为500 kg h,气相回流位置为第37块塔板,液相回流位置为第12块塔板;在相同进料条件和相同碳五馏分纯度的前提下,与采用常规精馏工艺相比,采用隔壁塔精馏工艺时冷却能耗降低17.04%,加热能耗降低16.69%。
