Comparison of the Acceptability of Various Oil Shale Processes
While oil shale has the potential to provide a substantial fraction of our nation's liquid fuels for many decades, cost and environmental acceptability are significant issues to be addressed. Lawrence Livermore National Laboratory (LLNL) examined a variety of oil shale processes between the mid 1960s and the mid 1990s, starting with retorting of rubble chimneys created from nuclear explosions [1] and ending with in-situ retorting of deep, large volumes of oil shale [2]. In between, it examined modified-in-situ combustion retorting of rubble blocks created by conventional mining and blasting [3,4], in-situ retorting by radio-frequency energy [5], aboveground combustion retorting [6], and aboveground processing by hot-solids recycle (HRS) [7,8]. This paper reviews various types of processes in both generic and specific forms and outlines some of the tradeoffs for large-scale development activities. Particular attention is given to hot-recycled-solids processes that maximize yield and minimize oil shale residence time during processing and true in-situ processes that generate oil over several years that is more similar to natural petroleum.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 889979
- Report Number(s):
- UCRL-CONF-219767; TRN: US200620%%182
- Resource Relation:
- Conference: Presented at: AICHE 2006 Spring National Meeting, Orlando, FL, United States, Mar 23 - Mar 27, 2006
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
04 OIL SHALES AND TAR SANDS
10 SYNTHETIC FUELS
45 MILITARY TECHNOLOGY, WEAPONRY, AND NATIONAL DEFENSE
37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
CHIMNEYS
COMBUSTION
EXPLOSIVE FRACTURING
IN-SITU RETORTING
LAWRENCE LIVERMORE NATIONAL LABORATORY
LIQUID FUELS
MINING
NUCLEAR EXPLOSIONS
OIL SHALES
PETROLEUM
PROCESSING
RETORTING