Mechanistic model for the leaching of retorted rundle oil shale

Conference · Mon Dec 09 04:00:00 EST 1985 · Univ. Ky., Off. Eng. Serv., (Bull.); (United States)

OSTI ID:5484677

Krol, A A; Bell, P R.F.; Greenfield, P F

The mechanisms involved in the leaching of inorganic components from oil shale mined at the Rundle deposit, Queensland, Australia, and retorted by the Lurgi-Ruhrgas process were examined. The phenomena of most significance were found to be solute dissolution, cation exchange, solution speciation and hydrodynamic and unsaturated flow effects. To check on the completeness of this characterization, a model was developed which describes the generation and transport of the major components (Ca, Mg, Na, K, Cl and SO/sub 4/) in the leachate as it infiltrates a column of dry retorted shale. Model predictions compare well with experimental results. It is concluded that the dominant mechanisms which control the rate of leaching have been recognized. 8 references, 11 figures.

• Research Organization: Univ. of Queensland, St, Lucia, Australia
• OSTI ID: 5484677
• Report Number(s): CONF-851213-
• Conference Information: Journal Name: Univ. Ky., Off. Eng. Serv., (Bull.); (United States)
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040100 -- Oil Shales & Tar Sands-- Reserves & Exploration-- (-1989)
040900* -- Oil Shales & Tar Sands-- Waste management
ALKALI METALS
ALKALINE EARTH METALS
AUSTRALASIA
AUSTRALIA
CALCIUM
CHEMICAL REACTIONS
CHLORINE
CONTROL
DATA
DECOMPOSITION
DISPERSIONS
DISSOLUTION
ELEMENTS
ENVIRONMENTAL IMPACTS
EXPERIMENTAL DATA
HALOGENS
INFORMATION
ION EXCHANGE
LEACHATES
LEACHING
LURGI-RUHRGAS PROCESS
MAGNESIUM
MATHEMATICAL MODELS
METALS
MINING
MIXTURES
NONMETALS
NUMERICAL DATA
OIL SHALE MINING
OXYGEN COMPOUNDS
POLLUTION CONTROL
POTASSIUM
QUEENSLAND
RETORTING
SEPARATION PROCESSES
SODIUM
SOLUTIONS
SPENT SHALES
SULFATES
SULFUR COMPOUNDS
WATER POLLUTION CONTROL