Particulate emission control alternatives

PARTICULATE EMISSION CONTROL ALTERNATIVES COMPARISON OF "COALTROL" LPA WITH MECHANICAL SYSTEMS ... 

Monolithic diesel particulate filters (DPF) are widely used in diesel particulate emission control. They consist of many parallel channels which are alternately plugged at either end in order to force the exhaust gases through the porous ceramic walls. The particulates are deposited on the inside wall of the inlet channel to form a thin, porous soot bed. Once a sufficient mass of particulates is collected, it is burned off to regenerate the filter. Thus, in order to achieve a successful regeneration, the DPF should operate in the thermal runaway region. 

Baghouses are preferred over venturi scrubbers for controlling particulate matter emissions from loading and pushing operations because of the higher removal efficiencies. ESPs are effective for final tar removal from coke oven gas. Stack air emissions should be monitored continuously for particulate matter. Alternatively, opacity measurements of stack gases can suffice. Fugitive emissions should be monitored annually for VOCs. 

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