Back to Search
Start Over
Influence of Resins on Crystallization and Gelation of Waxy Oils
- Source :
- Energy & Fuels. 33:185-196
- Publication Year :
- 2018
- Publisher :
- American Chemical Society (ACS), 2018.
-
Abstract
- In the present work, we employed model oil systems to examine the effects of resins upon the gelation and crystallization of waxy oils. Two types of waxes were explored, namely, n-tetracosane (wax A) and a commercial wax with a melting temperature of 52–54 °C (wax B). The resins were extracted from a deoiled asphalt from Venezuelan residue by the saturates, aromatics, resins, and asphaltenes fractionation method. The results from negative-ion electrospray ionization Fourier transform ion cyclotron resonance-mass spectrometry suggest that resins consist of one to four fused benzenes rings or one to two fused naphthalene rings constructed by N1, N1O1, N1S1, N1O1S1, N1O2, O1, O1S1, and O2 class species containing stacking aromatic rings. For both types of waxes examined, adding resins to the waxy oils suppresses wax precipitation and modifies the morphology of wax crystals, which collectively leads to lower gelation temperature and lower yield stress. Up to 7 °C of reduction in gelation temperature, 60% of r...
- Subjects :
- Wax
General Chemical Engineering
Electrospray ionization
Energy Engineering and Power Technology
Aromaticity
02 engineering and technology
Fractionation
021001 nanoscience & nanotechnology
Mass spectrometry
law.invention
chemistry.chemical_compound
Fuel Technology
020401 chemical engineering
Chemical engineering
chemistry
law
visual_art
visual_art.visual_art_medium
0204 chemical engineering
Crystallization
0210 nano-technology
Asphaltene
Naphthalene
Subjects
Details
- ISSN :
- 15205029 and 08870624
- Volume :
- 33
- Database :
- OpenAIRE
- Journal :
- Energy & Fuels
- Accession number :
- edsair.doi...........e8bacb1a18079a468cef9c790f666e0e