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Title: Release of gas from heated oil shale and from mixtures of dolomite and quartz

Abstract

Experiments and calculations were performed to determine the amount of gas released from heated oil shale. It is known that kerogen, a component of oil shale, releases gas when heated. When the temperature is increased, the kerogen yields not only gas but char, a solid that reacts with steam and CO/sub 2/ (by-products of heated shale) to yield H/sub 2/ and CO. It was found that as much as 200 moles of CO and H/sub 2/ could be produced by the reaction of 1 kg of kerogen with steam at 1200/sup 0/C. Another of the gas-releasing components of oil shale, carbonate minerals, begins to decompose at 500/sup 0/C; decomposition is complete at about 700/sup 0/C after 1000 hr. The minerals begin to decompose at a lower temperature in steam. Reactions among carbonates and silicates resulted in the release of CO/sub 2/ even under high CO/sub 2/ pressure.

Authors:
Publication Date:
Research Org.:
California Univ., Livermore (USA). Lawrence Livermore Lab.
OSTI Identifier:
7348418
Report Number(s):
UCRL-51838
DOE Contract Number:  
W-7405-ENG-48
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
04 OIL SHALES AND TAR SANDS; 08 HYDROGEN; CARBON DIOXIDE; PRODUCTION; CARBON MONOXIDE; DOLOMITE; DECOMPOSITION; HYDROGEN PRODUCTION; KEROGEN; OIL SHALES; GAS YIELDS; QUARTZ; CHARS; CHEMICAL REACTIONS; SHALE GAS; STEAM; VERY HIGH TEMPERATURE; ALKALINE EARTH METAL COMPOUNDS; BITUMINOUS MATERIALS; CARBON COMPOUNDS; CARBON OXIDES; CARBONACEOUS MATERIALS; CARBONATE ROCKS; CARBONATES; CHALCOGENIDES; ENERGY SOURCES; FLUIDS; FOSSIL FUELS; FUELS; GASES; MAGNESIUM CARBONATES; MAGNESIUM COMPOUNDS; MINERALS; OXIDES; OXYGEN COMPOUNDS; RESERVOIR ROCK; ROCKS; SILICON COMPOUNDS; SILICON OXIDES; YIELDS; 040400* - Oil Shales & Tar Sands- Oil Production, Recovery, & Refining; 040500 - Oil Shales & Tar Sands- Properties & Composition; 080100 - Hydrogen- Production

Citation Formats

Taylor, R.W. Release of gas from heated oil shale and from mixtures of dolomite and quartz. United States: N. p., 1976. Web.
Taylor, R.W. Release of gas from heated oil shale and from mixtures of dolomite and quartz. United States.
Taylor, R.W. Mon . "Release of gas from heated oil shale and from mixtures of dolomite and quartz". United States.
@article{osti_7348418,
title = {Release of gas from heated oil shale and from mixtures of dolomite and quartz},
author = {Taylor, R.W.},
abstractNote = {Experiments and calculations were performed to determine the amount of gas released from heated oil shale. It is known that kerogen, a component of oil shale, releases gas when heated. When the temperature is increased, the kerogen yields not only gas but char, a solid that reacts with steam and CO/sub 2/ (by-products of heated shale) to yield H/sub 2/ and CO. It was found that as much as 200 moles of CO and H/sub 2/ could be produced by the reaction of 1 kg of kerogen with steam at 1200/sup 0/C. Another of the gas-releasing components of oil shale, carbonate minerals, begins to decompose at 500/sup 0/C; decomposition is complete at about 700/sup 0/C after 1000 hr. The minerals begin to decompose at a lower temperature in steam. Reactions among carbonates and silicates resulted in the release of CO/sub 2/ even under high CO/sub 2/ pressure.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1976},
month = {1}
}

Technical Report:
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