SCI和EI收录∣中国化工学会会刊

›› 2015, Vol. 23 ›› Issue (9): 1440-1446.DOI: 10.1016/j.cjche.2015.04.003

• Fluid Dynamics and Transport Phenomena • Previous Articles     Next Articles

Rheological and drag reduction properties of hydroxypropyl xanthan gum solutions

Meng Tian1, Bo Fang1, Leiping Jin1, Yongjun Lu2, Xiaohui Qiu2, Hao Jin1, Kejing Li1   

  1. 1 Shanghai Key Laboratory of Mutiphase Materials Chemical Engineering, Lab of Chemical Engineering Rheology, Research Center of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;
    2 Langfang Filial of Research Institute of Petroleum Exploration and Development, PetroChina, Langfang 065007, China
  • Received:2014-09-18 Revised:2015-03-27 Online:2015-10-24 Published:2015-09-28
  • Supported by:
    Supported by the National High Technology Research and Development Program of China (2013AA064801).

Rheological and drag reduction properties of hydroxypropyl xanthan gum solutions

Meng Tian1, Bo Fang1, Leiping Jin1, Yongjun Lu2, Xiaohui Qiu2, Hao Jin1, Kejing Li1   

  1. 1 Shanghai Key Laboratory of Mutiphase Materials Chemical Engineering, Lab of Chemical Engineering Rheology, Research Center of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;
    2 Langfang Filial of Research Institute of Petroleum Exploration and Development, PetroChina, Langfang 065007, China
  • 通讯作者: Bo Fang
  • 基金资助:
    Supported by the National High Technology Research and Development Program of China (2013AA064801).

Abstract: Hydroxypropyl xanthan gum (HXG) was prepared from xanthan gum (XG) and propylene oxide under alkaline condition. Rheological and drag reduction properties of different concentrations of aqueous HXG and XG solution were studied. The micro-structure network of HXG and XG solutions was investigated by Cryo-FESEM. The results showed that HXG and XG solutions could exhibit shear thinning property. The apparent viscosity of 6 g·L-1 HXG solution was 1.25 times more than that of 6 g·L-1 XG solution. The storage modulus G' and the loss modulus G" of HXG solutions were greater than those of XG solutions, and thixotropic and viscoelastic properties were more significant in HXG solutions. The HXG and XG solutions reduced the pressure drop of straight pipe, and themaximumdrag reduction of 1 g·L-1 HXG and XG in smooth tube reached 72.8% and 68.1%, respectively. Drag reduction rate was increased as the concentration increased. The HXG solution may become a new polymeric drag reducer.

Key words: Hydroxypropyl xanthan gum, Rheological properties, Drag reduction, Cryo-FESEM

摘要: Hydroxypropyl xanthan gum (HXG) was prepared from xanthan gum (XG) and propylene oxide under alkaline condition. Rheological and drag reduction properties of different concentrations of aqueous HXG and XG solution were studied. The micro-structure network of HXG and XG solutions was investigated by Cryo-FESEM. The results showed that HXG and XG solutions could exhibit shear thinning property. The apparent viscosity of 6 g·L-1 HXG solution was 1.25 times more than that of 6 g·L-1 XG solution. The storage modulus G' and the loss modulus G" of HXG solutions were greater than those of XG solutions, and thixotropic and viscoelastic properties were more significant in HXG solutions. The HXG and XG solutions reduced the pressure drop of straight pipe, and themaximumdrag reduction of 1 g·L-1 HXG and XG in smooth tube reached 72.8% and 68.1%, respectively. Drag reduction rate was increased as the concentration increased. The HXG solution may become a new polymeric drag reducer.

关键词: Hydroxypropyl xanthan gum, Rheological properties, Drag reduction, Cryo-FESEM