CHARACTERIZATION STUDIES ON VISBREAKER RESIDUES AND BITUMENS
- 1 January 1989
- journal article
- research article
- Published by Taylor & Francis in Fuel Science and Technology International
- Vol. 7 (8) , 1121-1138
- https://doi.org/10.1080/08843758908962282
Abstract
To better characterize the visbreaker (VB) residues and bitumens, and to study the differences between visbreaker and stright run (SR) products, four groups of samples (VB and SR residues and bitumens) were produced in some italian refineries. The samples were tested and analysed in order to know their viscosity at various temperatures, and their composition (chemical analysis and nmr). Adhesion, stability to oxidation, flow resistance of asphalt concrete were also evaluated for the bitumens. The study showed that nmr-aromaticity of the visbreaker residues and bitumens was increased by the visbreaking operation. Visbreaker bitumens were sensitive to oxidation and gave higher Marshall resistances. The susceptibility of penetration and viscosity to temperature changes was higer for visbreaker bitumens.Keywords
This publication has 9 references indexed in Scilit:
- Visbreaking studies on Aghajari long residueFuel, 1988
- Characterization of visbreaker bitumens by n.m.r. spectroscopyFuel, 1987
- SOAKER VISBREAK1NG OF SOME IRAQI RESIDUESFuel Science and Technology International, 1987
- Etude par simulation en laboratoire de l'opération de viscoréductionRevue de l'Institut Français du Pétrole, 1985
- Visbreaking reaction of atmospheric residue. Part 3. Structural analysis and reaction mechanism for iranian heavy atmospheric residue.Journal of The Japan Petroleum Institute, 1985
- Modifications structurales des résidus lors du procédé de viscoréductionRevue de l'Institut Français du Pétrole, 1984
- Visbreaking reaction of atmospheric residue. (Part 2). Structural analysis and reaction mechanism for arabian heavy atmospheric residue.Journal of The Japan Petroleum Institute, 1984
- Visbreaking reaction of atmospheric residue. (Part 1). Distillate yields and properties of visbroken residue.Journal of The Japan Petroleum Institute, 1984
- Stability of bitumens produced by thermal processesFuel, 1981