Document ID: EPA-HQ-OAR-2006-0089-0141
Agency: epa
Document Type: Supporting & Related Material
Title: 
Posted Date: 2007-05-01T04:00Z

----- Forwarded by Bill Harnett/RTP/USEPA/US on 10/01/2006 11:39 AM
-----
                                                                        
             "Difiglio,                                                 
             Carmen"                                                    
             <Carmen.Difiglio                                        To 
             @hq.doe.gov>             Bill Harnett/RTP/USEPA/US@EPA     
                                                                     cc 
             09/22/2006 04:50         "Karsner, A"                      
             PM                       <A.Karsner@hq.doe.gov>, "Mizroch, 
                                      John" <John.Mizroch@hq.doe.gov>,  
                                      "Fredriksen, Kathy"               
                                      <Kathy.Fredriksen@hq.doe.gov>,    
                                      "Kaempf, Douglas"                 
                                      <Douglas.Kaempf@hq.doe.gov>,      
                                      "Ferrell, John"                   
                                      <John.Ferrell@hq.doe.gov>,        
                                      "Moses, David"                    
                                      <David.Moses@hq.doe.gov>,         
                                      "Miranda, Amy"                    
                                      <Amy.Miranda@hq.doe.gov>          
                                                                Subject 
                                      Description of a cellulosic       
                                      ethanol plant.                    
                                                                        
                                                                        
                                                                        
                                                                        
                                                                        
                                                                        

Dear Mr. Harnett,

David Moses on my staff has been in contract with you concerning the
potential eligibility for cellulosic ethanol plants to receive the
wet-milling-ethanol-plants-emissions threshold along with the
dry-milling ethanol plants.

David said that you would need a technical description of the cellulosic
plant to ensure that it would not open the door to, for example, raising
the emissions threshold for gasification plants typically used in the
chemical industry.  I asked my colleagues in the Biomass Office (Office
of Energy Efficiency and Renewable Energy) to draft such a description
and have attached it.  After your staff has had a chance to look at it,
could you please let me know what additional information you might need.
Perhaps we should have our respective technical experts meet to discuss
any questions that remain.

Thank you.

Carmen Difiglio

<<Process to Convert Lignocellulosic Biomass to Ethanol.doc>>

Carmen Difiglio, Ph.D.
Deputy Assistant Secretary for Policy Analysis
Office of Policy and International Affairs
U.S. Department of Energy
1000 Independence Ave., SW
Washington, DC 20585
1-202-586-8436
1-202-586-0861 (fax)

(See attached file: Process to Convert Lignocellulosic Biomass to
Ethanol.doc)

 Process to Convert Lignocellulosic Biomass to Ethanol1.doc