Chinese Journal of Chromatography

Chinese Journal of Chromatography ›› 2013, Vol. 31 ›› Issue (6): 596-599.DOI: 10.3724/SP.J.1123.2012.12021

• Technical Notes • Previous Articles    

Analysis of cracking gas compressor fouling by pyrolysis gas chromatography-mass spectrometry

HU Yunfeng1, FANG Fei1, WEI Tao2, LIU Shuqing2, JIANG Guangshen3, CAI Jun3   

  1. 1. College of Chemistry and Chemical Engineering, Northeast Petroleum University, Daqing 163318, China;
    2. PetroChina Daqing Petrochemical Company, No. 1 Refinery, Daqing 163318, China;
    3. Xinjiang Petroleum Exploration Design and Research Institute, Karamay 834000, China
  • Received:2012-12-10 Revised:2013-01-14 Online:2013-06-28 Published:2013-06-06
  • Contact: 10.3724/SP.J.1123.2012.12021

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Abstract:

The fouling from the different sections of the cracked gas compressor in Daqing Petrochemical Corporation was analyzed by pyrolysis gas chromatography-mass spectrometry (Py/GC-MS). All the samples were cracked in RJ-1 tube furnace cracker at the cracking temperature of 500℃, and separated with a 60 m DB-1 capillary column. An electron impact ionization (EI) source was used with the ionizing voltage of 70 eV. The results showed the formation of fouling was closely related with cyclopentadiene which accounted for about 50% of the cracking products. Other components detected were 1-butylene, propylene, methane and n-butane. This Py/GC-MS method can be used as an effective approach to analyze the causes of fouling in the petrochemical plants.

Key words: cracking gas compressors fouling, cyclopentadiene, pyrolysis gas chromatography-mass spectrometry (Py/GC-MS)

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