%0 Journal Article
%T Investigation of a Gas Chromatographic Column System for the On-Line Analysis of Gaseous Components in De-Propane Tower of Pyrolys is Equipment<br>在线分析脱丙烷塔顶中气体组分的气相色谱柱系统研究
%A CAI Hua
%A LIU Li-jiang
%A YAN Jian
%A LU Xin
%A YE Fen
%A XU Guo-wang
%A <br>蔡华
%A 刘漓江
%A 严健
%A 路鑫
%A 叶芬
%A 许国旺
%J 色谱
%D 2000
%I 
%X Multi-dimensional gas chromatograph has become an important process analyzer due to the advantages of high resolution and fast speed. According to the production requirement, a gas chromatographic column switching system has been investigated for the on-line analysis of gaseous components from high-pressure and lower-pressure de-propane towers of pyrolysis equipment. By using two different injection times on three injectors,and fore-flush and back-flush techniques, C\-2-hydrocarbons, propane, propene, methylacetylene, propadiene and C\-4-hydrocarbons can be separated on 7 columns in 7 minutes. The practical application showed the developed column system is suitable for the on-line monitoring of the production process.
%K gas chromatography
%K multi\|dimensional chromatography
%K on\|line analysis
%K process control
%K column switching<br>气相色谱法
%K 在线分析
%K 过程控制
%K 石油裂解
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=6E709DC38FA1D09A4B578DD0906875B5B44D4D294832BB8E&cid=6579068328FE643F&jid=4D81E042D77AFEC6881D14759692069C&aid=9BA2AC08419A7FD8FC77E4AEE317D6FB&yid=9806D0D4EAA9BED3&vid=13553B2D12F347E8&iid=0B39A22176CE99FB&sid=6DE26652A1045643&eid=03A030BB0C519C60&journal_id=1000-8713&journal_name=色谱&referenced_num=0&reference_num=4