Air separation by the Moltox process
The report describes results of a development program on a new and energy saving process for air separation. The Moltox process involves reversibly reacting oxygen in air with a recirculating salt solution, such that oxygen is extracted without depressurizing the remaining nitrogen. Energy savings of approximately 50% are indicated for this process compared to conventional cryogenic air separation. The development program consisted of design, construction, and operation of a 6 liter/minute pilot plant; optimization of the process flowsheet through computer modelling; investigation of engineering aspects of the process including corrosion, safety, and NO/sub x/ generation; and an economic comparison to conventional cryogenic practice. All objectives were satisfactorily achieved except for continuous operation of the pilot plant, and the modifications necessary to achieve that have been identified. Economically the Moltox process shows a substantial advantage over large scale cryogenic plants which are powered by fuel vice electricity.
- Research Organization:
- Energy Concepts Co., Annapolis, MD (USA)
- DOE Contract Number:
- AC01-79CS40287
- OSTI ID:
- 5744106
- Report Number(s):
- DOE/CS/40287-1; ON: DE82005479
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
AIR
SEPARATION PROCESSES
CHEMICAL PLANTS
ENERGY CONSERVATION
OXYGEN
PRODUCTION
BENCH-SCALE EXPERIMENTS
CHEMICAL REACTIONS
COMPARATIVE EVALUATIONS
COMPRESSED AIR
COMPUTERIZED SIMULATION
CORROSION
COST
CRYOGENICS
DESIGN
ENERGY EFFICIENCY
FLOWSHEETS
NITROGEN OXIDES
PILOT PLANTS
PROCESSING
REMOVAL
SAFETY
CHALCOGENIDES
COMPRESSED GASES
DIAGRAMS
EFFICIENCY
ELEMENTS
FLUIDS
FUNCTIONAL MODELS
GASES
INDUSTRIAL PLANTS
NITROGEN COMPOUNDS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
SIMULATION
320303* - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Equipment & Processes
320304 - Energy Conservation
Consumption
& Utilization- Industrial & Agricultural Processes- Waste Heat Recovery & Utilization