针对苯加氢过程中产生的二甲苯残液进行分离,通过减压精馏实验并结合化工模拟软件PRO II 9.0建立的二甲苯残液分离模型对其工艺进行研究。研究表明:通过高效精馏,可以实现焦化二甲苯残液中组分的分离;在理论板为60,压力为10k Pa,回流比...针对苯加氢过程中产生的二甲苯残液进行分离,通过减压精馏实验并结合化工模拟软件PRO II 9.0建立的二甲苯残液分离模型对其工艺进行研究。研究表明:通过高效精馏,可以实现焦化二甲苯残液中组分的分离;在理论板为60,压力为10k Pa,回流比为15时,可以获得w>99.0%的茚满,回流比为20时,可获得w>99.0%的四氢化萘,单程收率可以达到95%以上。实验与模拟结果为实现工业化分离二甲苯残液制备茚满和四氢化萘产品提供了必要的基础数据。展开更多
Sterically congested 2,2-disubstituted indane-1,3-dione derivatives have been syn-thesized and characterized by 1H NMR,13C NMR,FT-IR and elemental analysis.The B3LYP/HF calculations for computation of IR spectra have ...Sterically congested 2,2-disubstituted indane-1,3-dione derivatives have been syn-thesized and characterized by 1H NMR,13C NMR,FT-IR and elemental analysis.The B3LYP/HF calculations for computation of IR spectra have been carried out for the title compounds at the 6-31G and 6-311＋＋G basis set levels.Predicted vibrational frequencies have been assigned and compared with the experimental FT-IR spectra and they are supported each other.展开更多
文摘针对苯加氢过程中产生的二甲苯残液进行分离,通过减压精馏实验并结合化工模拟软件PRO II 9.0建立的二甲苯残液分离模型对其工艺进行研究。研究表明:通过高效精馏,可以实现焦化二甲苯残液中组分的分离;在理论板为60,压力为10k Pa,回流比为15时,可以获得w>99.0%的茚满,回流比为20时,可获得w>99.0%的四氢化萘,单程收率可以达到95%以上。实验与模拟结果为实现工业化分离二甲苯残液制备茚满和四氢化萘产品提供了必要的基础数据。
文摘Sterically congested 2,2-disubstituted indane-1,3-dione derivatives have been syn-thesized and characterized by 1H NMR,13C NMR,FT-IR and elemental analysis.The B3LYP/HF calculations for computation of IR spectra have been carried out for the title compounds at the 6-31G and 6-311＋＋G basis set levels.Predicted vibrational frequencies have been assigned and compared with the experimental FT-IR spectra and they are supported each other.
