Simulated ground water leaching of in situ retorted or burned oil shale. [Effects of retorting time, temperature, and atmosphere on leaching properties of spent shales]

Conference · Thu Jan 01 04:00:00 EST 1976 · Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States)

OSTI ID:7119705

Parker, H W; Bethea, R M; Gueven, N; Gazdar, M N; Owusu, J K

With regard to a particular oil shale in-situ retorting site, the primary variables expected to influence the quantity of soluble salts available for possible groundwater leaching are retorting temperature, retorting time, and possible exposure to air to burn carbon from the shale. These variables were investigated for four temperatures, 430, 483, 630, and 780/sup 0/C, and two retorting times 15 and 30 hours. In general, 5 times less material was solubilized when oil shale was retorted in the absence of air than in the presence of air at the two lowest retorting temperatures. Retorting time was not a statistically important variable with regard to quantity of dissolved solids or pH of the leachate. As anticipated, increasing retorting temperatures resulted in increased amounts of leached solids and a higher pH leachate. Data are reported for leaching of many common elements from the oil shale--Li, Na, K, Mg, Ca, Sr, Zn, Cd, Hg, Cr, Fe, Mo, Al, and Pb.

• Research Organization: Texas Tech Univ., Lubbock
• OSTI ID: 7119705
• Conference Information: Journal Name: Am. Chem. Soc., Div. Fuel Chem., Prepr.; (United States) Journal Volume: 21:6
• Country of Publication: United States
• Language: English

Related Subjects

04 OIL SHALES AND TAR SANDS
040500 -- Oil Shales & Tar Sands-- Properties & Composition
040900* -- Oil Shales & Tar Sands-- Waste management
AIR
ALKALI METALS
ALKALINE EARTH METALS
ALUMINIUM
ATMOSPHERES
BITUMINOUS MATERIALS
CADMIUM
CALCIUM
CARBONACEOUS MATERIALS
CHROMIUM
CONTROLLED ATMOSPHERES
DISSOLUTION
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
GASES
GROUND WATER
HIGH TEMPERATURE
HYDROGEN COMPOUNDS
INFORMATION
IRON
LEACHING
LEAD
LITHIUM
MAGNESIUM
MERCURY
METALS
METAMORPHIC ROCKS
MOLYBDENUM
OIL SHALES
OXYGEN COMPOUNDS
PH VALUE
POTASSIUM
REFRACTORY METALS
RETORTING
ROCKS
SEPARATION PROCESSES
SHALES
SODIUM
SPENT SHALES
STRONTIUM
TABLES
TEMPERATURE DEPENDENCE
TIME DEPENDENCE
TRANSITION ELEMENTS
WATER
ZINC