[p2tech] Perc Alternatives

Hi Debby,

 

It's hard to imagine anyone still using Perc, and in open-top 55-gallon
drums. Many air districts now require the use of 100% enclosed equipment.  As
for substitutes, I would guess there are many. Steam, aqueous, aliphatic
hydrocarbon, or terpene-blend may work.  It all depends on the nature of the
soil they are trying to remove. Are they cleaning the coils in manufacturing
or in field use?  If cleaning is part of manufacturing, then they need to
look at the upstream process. Switching to a water-based lube may then allow
then to clean the coils using a water rinse.  Use hot DI water and remove the
coils slowly from the bath and the coils will come out dry to the touch. They
may need an air knife to cool the coils if they are to be immediately
handled.  If the coil cleaning is in the field after use, then you may be
dealing with heavy crude oil and tar.  I would suggest a terpene-emulsion or
aliphatic hydrocarbon and terpene blend.  You might also try a soybean oil
based product.  Look for something used to clean asphalt from tools and truck
beds.  Air emissions, waste handling, and disposal are other issues they will
need to address in making the change.  

 

Mike Callahan, PE

Jacobs Engineering

1111 S. Arroyo Parkway

Pasadena CA, 91105

(626) 568-7005 office

(213) 359-9805 cell

 

-----Original Message-----
From: p2tech-bounces at great-lakes.net [mailto:p2tech-bounces at great-lakes.net]
On Behalf Of Valin, Debby
Sent: Tuesday, October 06, 2009 1:25 PM
To: p2tech at great-lakes.net
Cc: Kraemer, Janine; chemkotech at bellsouth.net
Subject: [p2tech] Perc Alternatives

 

Hi, all-

 

We are looking for a perchloroethylene alternative for cleaning large
stainless steel coils or bellows used in oil drilling.  This company
currently soaks the coils in perc-filled 55-gallon drums.   Problems may
exist with other cleaners altering the surface of the coils.  I am not sure
whether this is just an aesthetics issue or actually impedes the function or
durability of the coils.

 

Any help here?

 

Janine and Mr. Jones - please correct any misinformation and supplement any
missing details. 

 

Thanks, all.

 

Debby Valin

P2 Coordinator

FDEP

Central District

321-722-5381 OFFICE

321-229-8931 CELL

 

 

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