STBRSIM. Oil Shale Retorting Process Model
- Lawrence Livermore National Lab., CA (United States)
STBRSIM simulates an aboveground oil-shale retorting process that utilizes two reactors; a staged, fluidized-bed retort and a lift-pipe combustor. The model calculates the steady-state operating conditions for the retorting system,taking into account the chemical and physical processes occurring in the two reactors and auxiliary equipment. Chemical and physical processes considered in modeling the retort include: kerogen pyrolysis, bound water release, fluidization of solids mixture, and bed pressure drop. Processes accounted for by the combustor model include: combustion of residual organic carbon and hydrogen, combustion of pyrite and pyrrhotite, combustion of nonpyrolized kerogen, decomposition of dolomite and calcite, pneumatic transport, heat transfer between solids and gas streams, pressure drop and change in void fraction, and particle attrition. The release of mineral water and the pyrolysis of kerogen take place in the retort when raw shale is mixed with hot partially-burned shale, and the partial combustion of residual char and sulfur takes place in the combustor as the shale particles are transported pneumatically by preheated air. Auxiliary equipment is modeled to determine its effect on the system. This equipment includes blowers and heat-exchangers for the recycle gas to the retort and air to the combustor, as well as a condensor for the product stream from the retort. Simulation results include stream flow rates, temperatures and pressures, bed dimensions, and heater, cooling, and compressor power requirements.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE Assistant Secretary for Fossil Energy, Washington, DC (United States)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 139040
- Report Number(s):
- ESTSC-000266C760000; NESC-1078
- Resource Relation:
- Other Information: PBD: 2 Mar 1992
- Country of Publication:
- United States
- Language:
- English
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