Abstract
Stable coal-oil mixtures can be prepared by grinding coal particles in fuel oil. These products have been prepared by the British Petroleum Company plc and are referred to as Coal-Oil Dispersions (COD). One of the major problems associated with the production of DOD is the rapid assessment of the length of time the coal particles are likely to remain in suspension under a particular set of storage conditions. This paper describes a number of measurements of the low-shear rheology and sedimentation stability of a series of CODs prepared by grinding two types of coal in two different fuel oils. The results suggest that two types of COD are possible. One type exhibits complex rheological properties at low shear rates and does not produce a coal sediment, even after prolonged storage at 80/sup 0/C under dynamic conditions. The other exhibits near Newtonian behaviour and appears to form a sedimented layer of coal during storage.
Citation Formats
Rutter, P. R., Davies, J. M., and Jones, T. E.R.
Low-shear rheology and sedimentation stability of coal-oil dispersions.
Switzerland: N. p.,
1984.
Web.
doi:10.1016/0032-5910(84)85074-3.
Rutter, P. R., Davies, J. M., & Jones, T. E.R.
Low-shear rheology and sedimentation stability of coal-oil dispersions.
Switzerland.
https://doi.org/10.1016/0032-5910(84)85074-3
Rutter, P. R., Davies, J. M., and Jones, T. E.R.
1984.
"Low-shear rheology and sedimentation stability of coal-oil dispersions."
Switzerland.
https://doi.org/10.1016/0032-5910(84)85074-3.
@misc{etde_5769688,
title = {Low-shear rheology and sedimentation stability of coal-oil dispersions}
author = {Rutter, P. R., Davies, J. M., and Jones, T. E.R.}
abstractNote = {Stable coal-oil mixtures can be prepared by grinding coal particles in fuel oil. These products have been prepared by the British Petroleum Company plc and are referred to as Coal-Oil Dispersions (COD). One of the major problems associated with the production of DOD is the rapid assessment of the length of time the coal particles are likely to remain in suspension under a particular set of storage conditions. This paper describes a number of measurements of the low-shear rheology and sedimentation stability of a series of CODs prepared by grinding two types of coal in two different fuel oils. The results suggest that two types of COD are possible. One type exhibits complex rheological properties at low shear rates and does not produce a coal sediment, even after prolonged storage at 80/sup 0/C under dynamic conditions. The other exhibits near Newtonian behaviour and appears to form a sedimented layer of coal during storage.}
doi = {10.1016/0032-5910(84)85074-3}
journal = []
issue = {1-3}
volume = {40}
journal type = {AC}
place = {Switzerland}
year = {1984}
month = {Oct}
}
title = {Low-shear rheology and sedimentation stability of coal-oil dispersions}
author = {Rutter, P. R., Davies, J. M., and Jones, T. E.R.}
abstractNote = {Stable coal-oil mixtures can be prepared by grinding coal particles in fuel oil. These products have been prepared by the British Petroleum Company plc and are referred to as Coal-Oil Dispersions (COD). One of the major problems associated with the production of DOD is the rapid assessment of the length of time the coal particles are likely to remain in suspension under a particular set of storage conditions. This paper describes a number of measurements of the low-shear rheology and sedimentation stability of a series of CODs prepared by grinding two types of coal in two different fuel oils. The results suggest that two types of COD are possible. One type exhibits complex rheological properties at low shear rates and does not produce a coal sediment, even after prolonged storage at 80/sup 0/C under dynamic conditions. The other exhibits near Newtonian behaviour and appears to form a sedimented layer of coal during storage.}
doi = {10.1016/0032-5910(84)85074-3}
journal = []
issue = {1-3}
volume = {40}
journal type = {AC}
place = {Switzerland}
year = {1984}
month = {Oct}
}