Determination of emission characteristics from the UNDERC cooling tower
The Great Plains Gasification Associates (GPGA) plant at Beulah, North Dakota, and many other synfuels plants in the future, will be producing thousands of gallons of wastewater per day. There is a need for development of environmental data concerning effluents from fixed-bed coal gasification. The University of North Dakota Energy Research Center (UNDERC) is addressing this need as one of the principle goals of its wastewater treatment program. UNDERC has various types of wastewater treatment and reuse unit operations, designed to yield scaleable data, which are currently being operated on wastewater from the UNDERC slagging fixed-bed gasifier. A part of this equipment is a forced-draft cooling tower which utilizes this wastewater as makeup. Phase I cooling tower testing at UNDERC was designed to use as feed minimally treated wastewater (solvent extracted for organics removal and steam stripping for ammonia and acid gas removal) to simulate the proposed GPGA water treatment plan. A crucial part of this study was the determination of the atmospheric effects resulting from the use of the stripped gas liquor (SGL) as feed to the cooling tower. Several types of sampling equipment including a multicyclone, cooled impingers, and an XAD resin trap, were used for the collection and retention of components present in the tower evaporate. A comparative study of several drift measurement techniques was also performed using chemical and material balances around the system. Results indicated that a significant portion of phenol and ammonia in the makeup water (91 and 81 percent, respectively) were stripped into the atmosphere. Twenty-one percent of the methanol was also stripped.
- Research Organization:
- North Dakota Univ., Grand Forks (USA). Energy Research Center
- DOE Contract Number:
- FC21-83FE60181
- OSTI ID:
- 5229418
- Report Number(s):
- DOE/FE/60181-51; CONF-840261-1; ON: DE84007409
- Resource Relation:
- Conference: 24. annual regional symposium of the Twin City Section of the AIChE, St. Paul, MN, USA, 16 Feb 1984
- Country of Publication:
- United States
- Language:
- English
Similar Records
Use of treated gasification wastewater in a pilot cooling tower: Final report for the period ending June 30, 1986
Pilot-scale treatment and cooling tower reuse of gasification wastewater
Related Subjects
54 ENVIRONMENTAL SCIENCES
COAL GASIFICATION PLANTS
COOLING TOWERS
WASTE WATER
EMISSION
ENVIRONMENTAL EFFECTS
CHEMICAL COMPOSITION
SAMPLING
RECYCLING
WATER TREATMENT
AMMONIA
COAL GASIFICATION
EXPERIMENTAL DATA
METHANOL
PERFORMANCE TESTING
PHENOL
ALCOHOLS
AROMATICS
DATA
GASIFICATION
HYDRIDES
HYDROGEN COMPOUNDS
HYDROXY COMPOUNDS
INDUSTRIAL PLANTS
INFORMATION
LIQUID WASTES
MECHANICAL STRUCTURES
NITROGEN COMPOUNDS
NITROGEN HYDRIDES
NUMERICAL DATA
ORGANIC COMPOUNDS
OXYGEN COMPOUNDS
PHENOLS
TESTING
THERMOCHEMICAL PROCESSES
TOWERS
WASTES
WATER
010404* - Coal
Lignite
& Peat- Gasification
500400 - Environment
Atmospheric- Thermal Effluents Monitoring & Transport- (-1989)