RE: P2 in Asphalt mfg.

["Malkin, Melissa" <mjmalkin@rti.org>]

Darrell,

In a paper I did on P2 in permits, we cite the example of New Jersey's
work with P2 and asphalt manufacturers. The state requries the
manufacturerrs to have plans to reduce CO and hydrocarbon emissions, and
they are required to report quarterly on the good operating practices
they have undertaken. 

The operating practices mentioned in the sample permit are (briefly):
- adjusting burner systems for optimum fuel/air mixing, fuel atomization
-Examine dryer flights 
- review proceedure of loading dryer from sand & aggregate piles: 1 )
provide cover to prevent high water content due to rain; 2) Remove sand
& aggregate from piles at a sufficient height above the base to avoid
charging wet mix to dryer
- adjust location of asphalt injection into drum to avoid subjecting it
to high temperatures
- adjust flight design/arrangement to provide full aggregate curtain in
the fryer, thus increasing heat exchange to the aggregate and reducing
temperature of gasses around the asphalt injection. 
-consider recirculation of exit dryer gasses & energy recovery

The contact name that I have is Louis Mikolajczyk, who's the Bureau
Chief for New Source Review, phone 609 292 9258.  Contact me off-list if
you need more details.

Regards,
Melissa
                               .........................................
..........
                                         Melissa Malkin
                              Pollution Prevention Program
                                  Research Triangle Institute
             POB 12194. Research Triangle Park, N.C. 27709-2194
         (ph)   919-541-6154                        (fax)   919-541-7155
                           http://www.rti.org/units/ese/pp.html
                                   .....................................
..


>----------
>From: 	Darrell Soyars[SMTP:dsoyars@unr.edu]
>Sent: 	Friday, January 31, 1997 5:24 PM
>To: 	p2tech@great-lakes.net
>Subject: 	information search
>
>Hello,
>I am looking for any pollution prevention information for a asphalt
>roofing material manufacturer.  The process uses heated mix tanks which
>are vented to an existing wet scrubber and cyclone. The afterburner option
>is being discussed at this time, would like to avoid this expense with
>process changes. Thanks, Darrell
> 
>
>Darrell Soyars
>Air Quality Engineer
>Business Environmental Program
>Nevada Small Business Development Center/032
>University of Nevada at Reno
>Reno, NV 89557-0100
>Phone:(702)784-1717
>Fax:(702)784-1395
>dsoyars@unr.edu
>
>
>
>