Gas stream cleanup. Technology status report
The required levels of contaminant removal for the applications discussed herein are readily achievable with cold gas cleanup systems. However, the potential for hot gas cleanup to increase the overall efficiency of power systems is significant, and overall cost per unit capacity for such systems is expected to diminish substantially relative to cold gas cleanup. Indeed, implementation of a pressurized fluidized-bed combustor (PFBC) is not achievable without hot gas cleanup. Hot gas cleanup systems for removing fuel gas contaminants offer the highest overall system efficiency if they operate between the gasifier exit temperature and the inlet temperature of the MCFC or the gas turbine. These hot has cleanup processes retain the sensible heat from the gasifier to avoid gas reheat prior to entry into the MCFC or gas turbine. Hot gas cleanup processes will eliminate the need for low-temperature heat exchangers, water quench systems, and wastewater treatment processes. The development of hot gas cleanup is expected to reduce the cost of electricity made from coal. The extent of the cost reduction depends on the development of hot gas cleanup technologies that easily and reliably clean up product gas or combustion products to the tolerances required for various applications. 37 refs., 16 figs., 8 tabs.
- Research Organization:
- USDOE Morgantown Energy Technology Center, WV
- OSTI ID:
- 5493070
- Report Number(s):
- DOE/METC-86/0228; ON: DE86001032
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ADSORBENTS
REGENERATION
ALKALI METAL COMPOUNDS
MEASURING INSTRUMENTS
COMBUSTION PRODUCTS
HOT GAS CLEANUP
FUEL GAS
SPECIFICATIONS
REVIEWS
TECHNOLOGY ASSESSMENT
ACID ELECTROLYTE FUEL CELLS
AMMONIA
AROMATICS
BAUXITE
BEAVON PROCESS
CARBON OXYSULFIDE
CATALYTIC CRACKING
CHLORIDES
CLAUS PROCESS
CNG PROCESS
COAL TAR
ELEMENTS
FERRITES
FUEL CELLS
GAS CHROMATOGRAPHY
GRANULAR BED FILTERS
HYDROCYANIC ACID
MOLTEN CARBONATE FUEL CELLS
NITROGEN OXIDES
OXIDES
PARTICULATES
REMOVAL
RESOX PROCESS
SOOT
STRETFORD PROCESS
SULFUR COMPOUNDS
THERMAL CRACKING
TRACE AMOUNTS
W-L SULFUR DIOXIDE RECOVERY PROCESS
ZINC COMPOUNDS
ALUMINIUM ORES
CARBON COMPOUNDS
CHALCOGENIDES
CHEMICAL REACTIONS
CHLORINE COMPOUNDS
CHROMATOGRAPHY
CRACKING
CYANIDES
DECOMPOSITION
DIRECT ENERGY CONVERTERS
DOCUMENT TYPES
ELECTROCHEMICAL CELLS
FERRIMAGNETIC MATERIALS
FILTERS
FLUIDS
FUELS
GAS FUELS
GASES
HALIDES
HALOGEN COMPOUNDS
HIGH-TEMPERATURE FUEL CELLS
HYDRIDES
HYDROGEN COMPOUNDS
INORGANIC ACIDS
IRON COMPOUNDS
MAGNETIC MATERIALS
MATERIALS
MECHANICAL FILTERS
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
ORES
ORGANIC COMPOUNDS
OTHER ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PARTICLES
PURIFICATION
PYROLYSIS
SEPARATION PROCESSES
TAR
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENT COMPOUNDS
010402* - Coal
Lignite
& Peat- Purification & Upgrading