AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 5 doc
AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 5 doc
... air load test can be plotted creating a volts
vs. amps (V-I) chart. The airload V-I chart can then be compared to that
achieved during operation. Most modern voltage controls contain an auto-
matic ... Inside
the cabinet is a voltage control and silicon control rectifier. The voltage
control flow of current through the silicon control rectifier. Current from the
silicon control recti...
AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 1 doc
... C.
Air pollution control equipment selection guide / Kenneth Schifftner.
p. cm.
Includes index.
ISBN 1 -5 871 6-0 6 9-2 (alk. paper)
1. Air Purification Equipment and supplies. I. Title.
TD889 .S 35 ...
Welcome to the
Air Pollution Control Equipment Selection Guide
.
The selection of air pollution control hardware can be a daunting task.
There are...
AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 3 doc
...
Biofilters
are often used to control the emissions of water-soluble or condens-
able hydrocarbons (such as alcohols), phenols, aldehydes such as formalde-
hyde, odorous mercaptans, organic ... the biofilter adhere to is
called
biomass
. This biomass may be cellulose or similar wood-based mate-
rial, peat, carbon (or charcoal), straw, waste organic material, or plastic
material (li...
AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 9 doc
... interception, or crossflow wherein the gas and liquid move con-
currently at least for a portion of their movement.
The liquid is sprayed at a rate of 0 .5 to 4 gpm per square foot of media
surface. The design ... pad is run at a higher speed so some of its liquid agglom-
erates and entrains from the lee side of the pad, thereby wetting the down-
stream pad without overloading it with liquid....
AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 10 doc
... size, low-to-moderate cost, and the
ability to absorb gases while resisting plugging.
Common applications include:
1. Pulp mill bleach plant chlorine and chlorine dioxide control
2. SO
2
control ... LLC
5. Gas cooling and condensing
6. Prescrubbing (ahead of other devices such as wet electrostatic pre-
cipitators)
7. Fluorine abatement (scrubbing with pond water in the fertilizer i...
AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 15 docx
... An elec-
tron from the surface is required to balance the reaction.
X-NH
4
+
+ Y-NO
2
+ e
–
= X-Y + N
2
+ 2 H
2
O ( 15. 13)
Operating/application suggestions
A properly designed NO
x
control ... 1800°F, ammo-
nia dissociates to form NH
2
.
NH
3
= NH
2
+ H ( 15. 9)
NH
2
is a short-lived and very reactive species that reduces NO to nitro-
gen and water.
NH
2
+ NO = N
2
+ H
2
O. ( 15...
AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 18 doc
... velocities are similar to other cyclonic type wet scrub-
bers, that is, about 8 to 12 ft/sec vertical velocity. Gas inlet speeds range
from 35 to 55 ft/sec, but these speeds are often increased once ... gas absorp-
tion in the upper stage where both contaminants are present at the same time.
The following figure shows a vane or centrifugal type scrubber in fab-
rication. The turbine-like van...
AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 2 ppt
...
40
35
30
25
20
15
10
5
WT %
PPM bv
5, 000 10,000
at 75 F
TOLUENE
ETHYL ALCOHOL
ACETONE
TOLUENE
AT 200°F
© 2002 by CRC Press LLC
These designs are often used for tank vent emissions control ... Sutcliffe Corp.).
STRIPPED AIR EXHAUST STRIPPED AIR EXHAUST STRIPPED AIR EXHAUST
STEAM
KEY
SOLVENT LADEN AIR
SOLVENT FREE AIR
STEAM
DRYING & COOLING
AIR
RECOVERED
SOLVENT...
AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 7 pptx
... CRC Press LLC
Air- to-cloth ratios are only guidelines. Many other factors affect perfor-
mance. For example, the aspect ratio evaluates air- to-cloth ratio as it relates
to dirty air velocities ... compartmentalized off-line cleaning system, air- to-cloth
ratio is a much less important factor as no process air is flowing into the
filters. Cleaning off line is very easy at any air- to-...
AIR POLLUTION CONTROL EQUIPMENT SELECTION GUIDE - CHAPTER 8 potx
... are economically controlled by fiber-
beds. This application is similar to lube oil reservoir vents.
Figure 8 .5
30,000 ACFM system on tenter frame (Advanced Environmental Sys-
tems, Inc.).
... using three basic mechanisms: impaction, intercep-
tion, and Brownian diffusion. Impaction and interception are popular mech-
anisms used in various gas-cleaning devices. Brownian diffusion, howeve...
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