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...

Ngày tải lên: 11/08/2014, 09:21

... 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...

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... 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...

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... 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....

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... 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...

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... 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...

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... 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...

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... 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...

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... 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-...

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... 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...

Ngày tải lên: 11/08/2014, 09:21