Synthesis of poly(dodecyl phenol formaldehyde)-b-poly(oxypropylene) block copolymer, and evaluation as asphaltene inhibitor and dispersant

Synthesis of poly(dodecyl phenol formaldehyde)-b-poly(oxypropylene) block copolymer, and... The main objective of the research presented herein was to develop poly(dodecyl phenol formaldehyde)-b-poly(oxypropylene) block copolymer to be used as asphaltene inhibitor and dispersant for heavy crude oil, for example Hossia crude oil (Ras Gharib, Egyptian eastern desert). The material was synthesized in two steps. First, poly(dodecyl phenol formaldehyde) resin (PDPF) of three different molecular weights (1,936, 4,047, and 8,092, denoted PDPF1, PDPF2 and PDPF3, respectively) was synthesized. These compounds were then propoxylated to produce PDPF1-b-POP, PDPF2-b-POP, and PDPF3-b-POP of molecular weight 3,096, 5,179, and 9,202, respectively. All three products were evaluated as asphaltene inhibitors and dispersants at concentrations of 100, 500, and 1,000 ppm by use of UV spectrophotometry. Molecular weights were determined by gel-permeation chromatography (GPC). The chemical structures of the compounds were confirmed by IR and 1H NMR spectroscopy. The crude oil was analyzed by GC. The results revealed distinct inhibition of asphaltene precipitation in crude oils. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Synthesis of poly(dodecyl phenol formaldehyde)-b-poly(oxypropylene) block copolymer, and evaluation as asphaltene inhibitor and dispersant

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Publisher
Springer Journals
Copyright
Copyright © 2013 by Springer Science+Business Media Dordrecht
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1007/s11164-013-1243-8
Publisher site
See Article on Publisher Site

Abstract

The main objective of the research presented herein was to develop poly(dodecyl phenol formaldehyde)-b-poly(oxypropylene) block copolymer to be used as asphaltene inhibitor and dispersant for heavy crude oil, for example Hossia crude oil (Ras Gharib, Egyptian eastern desert). The material was synthesized in two steps. First, poly(dodecyl phenol formaldehyde) resin (PDPF) of three different molecular weights (1,936, 4,047, and 8,092, denoted PDPF1, PDPF2 and PDPF3, respectively) was synthesized. These compounds were then propoxylated to produce PDPF1-b-POP, PDPF2-b-POP, and PDPF3-b-POP of molecular weight 3,096, 5,179, and 9,202, respectively. All three products were evaluated as asphaltene inhibitors and dispersants at concentrations of 100, 500, and 1,000 ppm by use of UV spectrophotometry. Molecular weights were determined by gel-permeation chromatography (GPC). The chemical structures of the compounds were confirmed by IR and 1H NMR spectroscopy. The crude oil was analyzed by GC. The results revealed distinct inhibition of asphaltene precipitation in crude oils.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: May 31, 2013

References

  • Interfacial and colloidal behavior of asphaltene obtained from Brazilian crude oils
    Ramos, ACS; Haraguchi, L; Notrispe, FR; Loh, W; Mohamed, RS
  • Fractal structure of asphaltene aggregates
    Rahmani, NHG; Dabros, T; Masliyah, JH

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