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Re: Petroleum Refinery Energy Use



Alan Rossiter of Linhoff March has written a number of interesting 
articles on pinch technology and the gains yet to be made by the refining 
industry in heat integration.  You may find energy usage data in some of 
his work.  Mention heat integration to most refiners, though, and they 
scoff.  Many of them have to flare their excess process gas -- so they 
have more energy than they can use.  Cogeneration presents an interesting 
opportunity for the refineries that are in this position.  The Arco in LA 
has a cogen facility that generates enough electricity to power the city 
of Long Beach.  This Arco is a special case, though.  They produce only 
fuels, so they do a lot of cracking and have more than the usual volume 
of process gas.

Improving the energy efficiency of refineries that don't have excess 
process gas could involve heat integration, improving feedwater quality, 
or a number of process-specific techniques.  Every refinery has its own 
feed/process water/product slate/regulatory climate/process combinations 
and it would be impossible to generalize.

Articles and documents you might want to take a look at are "Use Pinch 
Analysis to Knock Down Capital Costs and Emissions" by B. Linnhoff, CEP 
Aug 1994; "Rank Pollution Prevention and Control Options" by A.P. 
Rossiter and J.D. Kumana, CEP Feb 1994; "Environmental Design 
Considerations for Petroleum Refining Crude Processing Units" from the 
API, publication no. 311, Feb 1993; and the documents put out by NTIS 
from the Amoco/US EPA Yorktown project (eg. PB92-228527).  An EPA 
document on process heaters (NTIS PB94-120235) provides a list of process 
heat requirements per barrel of feed for a number of different refinery 
processes.  

Good luck.

====================================================================
 Kirsten Sinclair Rosselot, P.E.                   Process Profiles 
                                                      P.O. Box 8264 
 1-818-878-0454                            Calabasas, CA 91372-8264
 rosselot@netcom.com                                         U.S.A.
==================================================================== 


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> I am searching for information about (1) energy use/consumption by U.S. =
> petroleum refineries and (2) techniques/technologies used by refineries =
> to reduce their energy use (that is, improve their energy efficiency).
> 
> Many thanks!
> 
> Michael Keefe
> PRC Environmental Management
> keefem@psinet.com
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