Industrial & Engineering Chemistry Research
Industrial & Engineering Chemistry Research
5 years ago

Preparation and Evaluation of Modified Ethylene–Vinyl Acetate Copolymer as Pour Point Depressant and Flow Improver for Jianghan Crude Oil

Preparation and Evaluation of Modified Ethylene–Vinyl Acetate Copolymer as Pour Point Depressant and Flow Improver for Jianghan Crude Oil
Xiaodong Zhang, Yongwen Ren, Zhaojun Chen, Hui Du, Long Fang
The ethylene–vinyl acetate copolymer (EVA) was modified by alkali-catalyzed alcoholysis. The alcoholized EVA (EVAL) was characterized by Fourier transform infrared (FTIR) spectroscopy and 1H nuclear magnetic resonance (1H NMR). Moreover, the influence of modified polar groups of EVA on the crystallization process of wax was investigated through differential scanning calorimetry (DSC) and polarized optical microscopy (POM). The results showed that EVAL had better performance than EVA in reducing the pour point and the viscosity of crude oil. EVAL could change the wax crystal habit and obviously lower the wax precipitation amount of crude oil. In addition, EVAL with stronger polarity could provide greater electrostatic repulsion force to wax crystals compared with EVA, which made the wax crystals have more difficulty to connect together and form a much looser network structure.

Publisher URL: http://dx.doi.org/10.1021/acs.iecr.7b02929

DOI: 10.1021/acs.iecr.7b02929

You might also like
Discover & Discuss Important Research

Keeping up-to-date with research can feel impossible, with papers being published faster than you'll ever be able to read them. That's where Researcher comes in: we're simplifying discovery and making important discussions happen. With over 19,000 sources, including peer-reviewed journals, preprints, blogs, universities, podcasts and Live events across 10 research areas, you'll never miss what's important to you. It's like social media, but better. Oh, and we should mention - it's free.

  • Download from Google Play
  • Download from App Store
  • Download from AppInChina

Researcher displays publicly available abstracts and doesn’t host any full article content. If the content is open access, we will direct clicks from the abstracts to the publisher website and display the PDF copy on our platform. Clicks to view the full text will be directed to the publisher website, where only users with subscriptions or access through their institution are able to view the full article.