RE: GRE Piping

From: <Steve>
Date: Wed Oct 30 2002 - 00:59:00 EST

Hi Ahmed Vawda

we used Vinyl Ester GRP on scrubbers for superphosphate fertiliser manufacture. Some are venturi scrubbers and some are void towers. Gas inlet temperatures reach 120 deg C at times (100 C is more normal) and there have been no temperature related failures to my knowledge, in spite of occasional scrubber water system failures. Vinyl esters are much cheaper than they used to be and we use them for all fertiliser ductwork and some piping.We used to use isophthallic polyester resin as well.   In your case you may want to consider fitting a backup quench water system.

Cheers

Steve McKenzie

-----Original Message-----
From: Ahmed Vawda [mailto:avawda@aksugar.co.ae] Sent: Wednesday, October 30, 2002 5:39 PM To: 'PipingDesign@yahoogroups.com'
Subject: RE: [PipingDesign] GRE Piping

Hello Forum Members

Slightly off - topic.
I was considering a GRE flue gas scrubber until it was pointed out to me that in the event of the water supply failing, the hot gases 150 deg C (300 F) would enter the scrubber.
Has anyone out there any experience with hot flue gases and GRE?

Since we intend using sea water for scrubbing the flue gas, I would be interested to hear about any other low cost material that may be considered as an alternative to GRE.

Regards
Ahmed Vawda
Process Engineer
Al Khaleej Sugar - Dubai

Texas Flange - a good source for information on industrial flanges, all they ask is for referrals for designs they help with. 877-610-8924.
www.texasflange.com

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Your use of Yahoo! Groups is subject to http://docs.yahoo.com/info/terms/ Received on Wed Oct 30 00:59:00 2002