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  |"Bromberg, Kevin L." <kevin.bromberg@sba.gov>                                                                                               
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  |RobertJ Wayland/RTP/USEPA/US@EPA, Melanie King/RTP/USEPA/US@EPA                                                                             
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  |"Cortney Higgins" <Cortney_Higgins@omb.eop.gov>, "Kymn, Christine J." 
<Christine_J._Kymn@omb.eop.gov>, "Johnson, Nancy"                     |
  |<Nancy.Johnson@hq.doe.gov>, "Maresca, Charles A." 
<Charles.Maresca@sba.gov>, Peter Tsirigotis/RTP/USEPA/US@EPA                              
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  |08/09/2010 05:39 PM                                                                                                                         
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  |RE: No Set AFR for catalysts mfgers                                                                                                         
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Joe has NO IDEA about the rule - and therefore, of course, you could achieve 
"significant" NOx benefits if you set the catalyst to achieve both reductions 
- but he doesn't know the set points at which this happens - and that is our 
point.

If you were setting standards for both HCHO and NOx - then this certainly 
could happen (although we still haven't much data on the overlap of the 
setpoints).

I agree, over most settings, there would be "significant" NOx reductions
- we could reasonably estimate 1/2 of what EPA has estimated.  But this is not 
based on much evidence.  1/2 of the 97% estimate is significant too.

Kevin

-----Original Message-----
From: Wayland.Robertj@epamail.epa.gov [
mailto:Wayland.Robertj@epamail.epa.gov]
Sent: Monday, August 09, 2010 5:20 PM
To: Bromberg, Kevin L.; King.Melanie@epamail.epa.gov
Cc: Cortney Higgins; Kymn, Christine J.; Johnson, Nancy; Maresca, Charles A.; 
Peter Tsirigotis
Subject: Re: No Set AFR for catalysts mfgers

Kevin -

Joe likewise makes the Agency's point in the second to last paragraph - I.e., 
if a catalyst is installed, significant NOx reductions will be achieved.

Bob

Sent from Blackberry Wireless Device
*********************************************
Dr. Robert J. Wayland
U.S. EPA
Office of Air Quality Planning and Standards
109 T.W. Alexander Drive, MC D243-01
RTP, NC  27709

Phone:  (919) 541-1045
Fax:       (919) 541-5450
Cell:       (919) 306-2290


----- Original Message -----
From: "Bromberg, Kevin L." [kevin.bromberg@sba.gov]
Sent: 08/09/2010 04:42 PM AST
To: Melanie King; Robertj Wayland
Cc: "Higgins, Cortney" <Cortney_Higgins@omb.eop.gov>; "Kymn, Christine J." 
<Christine_J._Kymn@omb.eop.gov>; "Johnson, Nancy"
<Nancy.Johnson@hq.doe.gov>; "Maresca, Charles A."
<Charles.Maresca@sba.gov>
Subject: No Set AFR for catalysts mfgers



This confirms what we expected.   The owner is free to choose the AFR
that he needs.  This will substantially reduce the NOx benefits.  As you know 
Joe is the technical expert with the engine manufacturers.

Kevin

-----Original Message-----
From: Joseph L. Suchecki [mailto:jsuchecki@emamail.org]
Sent: Monday, August 09, 2010 3:30 PM
To: Bromberg, Kevin L.
Subject: RE: CI RICE NESHAP final rule

Kevin,

I quickly talked to one of our manufacturers on this topic.  There is 
generally no set point required by the manufacturer and an owner and operator 
is free to choose the set point depending on his needs.  I don't fully 
understand all of the requirements, but essentially the owner/operator 
determines set point within a narrow range that allows compliance to emission 
standards and getting the best fuel economy.

Of course, if an existing engine adds a three-way catalyst to control 
formaldehyde emissions, just the addition of the catalyst system will 
substantially reduce NOx emissions compared to an uncontrolled engine.


Not sure if that answers your question.
Joe

-----Original Message-----
From: Bromberg, Kevin L. [mailto:kevin.bromberg@sba.gov]
Sent: Monday, August 09, 2010 1:19 PM
To: Suchecki, Joe
Cc: Bromberg, Kevin L.
Subject: FW: CI RICE NESHAP final rule

New number  312-929-1978


Hi Joe:

For rich burn engine operators who buy NSCR catalysts for retrofit purposes - 
to reduce HCHO emissions for RICE SI rule - what will be the specified 
operating parameters for those catalysts - does the cat mfg have specified 
operating parameters that limit AFR to .99 to .96, or can operator use lean 
settings at 1.0 to 1.1, say, to meet the HCHO limit?


Feel free to call me at 202-205-6964 (but I'll be on the phone at
2:30-3:30)
I could use this by email during the call.

Thx,
Kevin


