辽宁石油化工大学学报

辽宁石油化工大学学报 ›› 2020, Vol. 40 ›› Issue (6): 14-20.DOI: 10.3969/j.issn.1672-6952.2020.06.004

• 化学与化学工程 • 上一篇    下一篇

复配菌对含蜡原油含蜡量及其黏度作用分析

孟凡怡1， 杜胜男1， 冯宪明1， 王超2， 王卫强1   

  1. 1.辽宁石油化工大学 石油天然气工程学院，辽宁 抚顺 113001； 2.中油（新疆）石油工程有限公司 设计分公司，新疆 克拉玛依 834000
  • 收稿日期:2019-12-20 修回日期:2020-03-03 出版日期:2020-12-25 发布日期:2020-12-30
  • 作者简介:孟凡怡（1995-），女，硕士研究生，从事油气储运方面的研究；E-mail：791222971@qq.com。
  • 基金资助:
    辽宁省高等学校创新人才支持计划项目（LR2018055）；辽宁省自然科学基金指导计划项目（20180550745）。

Effect of Compound Bacteria on Wax Content and Viscosity of Waxy Crude Oil

Meng Fanyi1， Du Shengnan1， Feng Xianming1， Wang Chao2， Wang Weiqiang1   

  1. 1.College of Petroleum Engineering，Liaoning Shihua University，Fushun Liaoning 113001，China； 2.Design Branch of PetroChina （Xinjiang） Petroleum Engineering Co.， Ltd.，Karamay Xiangjiang 834000，China
  • Received:2019-12-20 Revised:2020-03-03 Published:2020-12-25 Online:2020-12-30

HTML

PDF

摘要： 微生物能改善含蜡原油的流动性，提高运输效率。将已培养的枯草芽孢杆菌6#和铜绿假单胞菌3#按2∶3的体积比复配培养，并优化其生长条件。采用DSC、偏光显微镜、HAKEE流变仪和界面张力仪对复配菌与含蜡原油的作用效果进行分析。经复配菌处理后，含蜡原油的析蜡点降低了2.23 ℃，析蜡高峰点降低了2.71 ℃，原油含蜡量（原油中蜡质量分数）降低51.64%；蜡晶结构发生了明显变化；37 ℃下测得原油表观黏度降低了64.72%；复配菌对液体石蜡的乳化指数为55.39%，液体石蜡培养基的表面张力从79.89 mN/m 降低至38.83 mN/m。与单菌相比，复配菌在除蜡降黏方面效果更为优异，应用前景更为广阔。

关键词: 微生物降解, 生物表面活性剂, 含蜡原油, 黏度, 表面张力

Abstract: Microbes can improve the fluidity of waxy crude oil and increase the efficiency of transportation. The cultured Bacillus subtilis 6# and Pseudomonas aeruginosa 3# were mixed and cultured in a ratio of 2∶3, the growth conditions were optimized. DSC, polarizing microscope, HAKEE rheometer and interfacial tensiometer were used to analyze the effect of compound bacteria and waxy crude oil. The results showed that: after treatment with compound bacteria, the wax precipitation point of waxy crude oil decreased by 2.23 ℃, the peak point of wax precipitation decreased by 2.71 ℃, and the wax content of crude oil decreased by 51.64%; the wax crystal structure changed significantly; the apparent viscosity of crude oil decreased by 64.72% at 37 ℃. In addition, the emulsification index of the compound bacteria on liquid paraffin was 55.39%, and the surface tension of the liquid paraffin culture medium was reduced from 79.89 mN/m to 38.83 mN/m. Compared with single bacteria, compound bacteria are more effective in removing wax and reducing viscosity, and have wider application prospects.

Key words: Microbial degradation, Biosurfactant, Waxy crude oil, Viscosity, Surface tension

引用本文

孟凡怡， 杜胜男， 冯宪明， 王超， 王卫强. 复配菌对含蜡原油含蜡量及其黏度作用分析[J]. 辽宁石油化工大学学报, 2020, 40(6): 14-20.

Meng Fanyi， Du Shengnan， Feng Xianming， Wang Chao， Wang Weiqiang. Effect of Compound Bacteria on Wax Content and Viscosity of Waxy Crude Oil[J]. Journal of Liaoning Petrochemical University, 2020, 40(6): 14-20.

使用本文

0
    /   /   推荐

导出引用管理器 EndNote|Ris|BibTeX

链接本文: http://journal.lnpu.edu.cn/CN/10.3969/j.issn.1672-6952.2020.06.004

               http://journal.lnpu.edu.cn/CN/Y2020/V40/I6/14



网站版权 © 2021《辽宁石油化工大学学报》编辑部

本系统由北京玛格泰克科技发展有限公司设计开发