Chem. J. Chinese Universities ›› 1991, Vol. 12 ›› Issue (10): 1390.

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The Study on Segment Motion of Drag Reduction Agents of Crude Oil Using 2,2,6,6-tetramethylpiperidone as Spin Probe

Wang Li, Feng Lin-xian, Mao Qing-ge, Yang Shi-lin   

  1. .Department of Chemistry, Zhejiang University, Hangzhou, 310027
  • Received:1991-02-06 Online:1991-10-24 Published:1991-10-24

Abstract: The segment motion of drag reduction agents of crude oil is considered to correlate to drag reduction efficiency. In this paper, 2,2,6,6-tetramethylpiperidone was used as a spin probe. The ESR spectra of probe were recorded at different temperatures and the values of T50Gwere calculated. It was discovered that the lower the T50G, the higher the drag reduction efficiency.

Key words: ESR, Spin probe, Drag reduction agents

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