Microcomputer aided calculations of parameters for spray dryer operation

Conference · Tue Jan 01 04:00:00 EST 1985

OSTI ID:5731399

Yeh, J T; Gyorke, D F; Pennline, H W; Drummond, C J

This paper provides a series of practical microcomputer programs that can be used as a tool by engineers and researchers working with spray dryers for combustion process effluent control. The microcomputer programs calculate flue gas composition (CO/sub 2/, N/sub 2/, O/sub 2/, H/sub 2/O, and SO/sub 2/) from the composition of the fuel. The residence time of the flue gas in a spray dryer can be estimated, and using values provided by the user for the flow of water and absorbent slurry in the spray dryer, the program recalculates the flue gas composition and heat capacity at the exit of the spray dryer without accounting for any SO/sub 2/ removal that could occur in the spray dryer. From these values and the system pressure, the dew point and flue gas temperature at the spray dryer exit are calculated, providing the approach to saturation resulting from this choice of operating parameters. This computer code would enable a process engineer to quickly evaluate effects of important process parameters, such as flue gas temperature at the inlet to the spray dryer, atomizer water feed rate, and absorbent slurry concentration and feed rate, on the operation of a spray dryer.

• Research Organization: USDOE Pittsburgh Energy Technology Center, PA
• OSTI ID: 5731399
• Report Number(s): CONF-850612-4; ON: DE85013468
• Country of Publication: United States
• Language: English

Related Subjects

01 COAL, LIGNITE, AND PEAT
010800* -- Coal
Lignite
& Peat-- Waste Management
500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
AIR POLLUTION ABATEMENT
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
COMPUTER CALCULATIONS
CONTROL
DESULFURIZATION
DRYING
FLUE GAS
GASEOUS WASTES
OPTIMIZATION
POLLUTION ABATEMENT
PROCESS CONTROL
SPRAY DRYING
WASTES