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RO/UF m e m b r a n e s for microelectronics
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H v d r a n a u t i ' s a u a r a n t e e s i n d i v i d u a l RO m e m b r a n e elenltqlls It) hilvc rF(D(~ levels of less t h a n 50 ppb. I l v d r a n a t l i i c s ~ l;dln That this level of TOC \viii allow Ill(' e l l d i l s e r 1~ i-('(ttlt'e p l a n t d o w l l t i m e , c o n s e r v e w a l e l a n d rc(h ire ~'ncr.t~y ('olasumption. Three h i | j ] i)eFl()rlllallt'e ~ i l l / h l l l C l l l h r a l l e e l e n ] e n l ll]()de]s ;ire
;ivailable: |lit" t'I'A2, el)A3 a n d ESPA. hi a d d i t i o n to the RO ¢letnents, H y d r a n a u l i c s have il]lrodtwed ~t~ ],:'w t:F m e m b r a n e e l e m e n t . Accor(ling 1~) I h d r a n a t ~ l i t s the new capillary U F m e m b r a n e liller, the NTU ] 3 0 6 K6R, not only d e m o n s t r a t e s a hiKh level ol reliability a n d d u r a b i l i t y , b u t h a s the highest w~/ttw I 1.1x of a n y c o m p a r a b l e UF m o d u l e . t t y d r : u l a u i i c s also m a i n t a i n t h a t this p a r t i c u l a r UF m o d u l e exhibil~s :l hiKher r e s i s t a n c e to t e m p e r a t u r e a n d t:,ress~re l h a n c o m p a r a b l e m o d u l e s , a n d is highly s~flled l~) ~lllralitu-,' p o l i s h i n ~ loops.
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to c o n t i n u e to m a n a g e a n d develop tit(, b u s i n e s s as part of the Memtec g r o u p with p a r t i c u l a r e m p h a s i s on developin~ m a r k e t s for Memtec p r o d u c t s m Italy.
Ceramic membranes convert natural gas i n t o liquid fuels The US D e p a r t m e n t of EnerKy (DOEI l:a~, selected Air Products a n d Chemicals Inc of Allentown. P e n n s y l v a n i a , 1o m a n a g e the development of an Ionic ceramic m e m b r a n e lechnology t h a t could r e d u c e the coM :~1 convertinR n a t u r a l gas into ' s y n t h e s i s ' gas 17)r lhe p r o d u c t i o n of l ransporlation-grade liquid fuels a n d p r e m i u m chemicals. II eould also offer a way of p r o d u c m a ]es~ e x p e n s i v e h y d r o g e n from n a t u r a l gas. The c o m p a n y says that it will lead t e a m s from eight o t h e r c o m p a n i e s a n d two u n i v e r s i t i e s in the project lha! is v a l u e d at a r o u n d USS84 rail]Jolt, ;lnd l h a t will be conducted in three phases over eight }'ears c u l m i n a t i n g ixl the c o n s t r u c t i o n of a p r e - c o m m e r c i a l scale p l a n t at Air P r o d u c t s ' i n d u s t r i a l gas complex in t,aPorte, Texas. The DOE will c o n t r i b u t e U S S 3 0 mill|tin io the cost of
the project.
Memtec pay U S $ 3 M for V e s s e l srl Memtcc lad r e c c n l l y ~ a i n e d e]m-y in to the Italian lilt ratioFl m a r k e Ihro~lgh I he a c q u i s i t i o n of the Milan b a s e d c o m p a n y Vessel srl. Memtec Ltd a n n o u n c e d | h a l it h a s a c q u i r e d all of the i s s u e d a n d o u t s t a n d i n g s h a r e s ol Vessel I0r a fee of a p p r o x i m a t e l y USS3.0M. The a c q u i s i t i o n a ~ r c e m e n t was signed on 28 May 1997. Vessel enRineers a n d m a n u t a c t u r e s filter h o u s i n K s a n d sells a wide ranKe ot filter c a r t r i d g e s to v a r i o u s m a r k e t s m Italy Key m a r k e t s lor Vessel i n c l u d e the a u t o m o t i v e p a i n t s m a r k e t , the c h e m i c a l p r o c e s s m a r k e i s , the re\ erbe o s n l o s i s p r e - t r e a t m e n t m a r k e t a n d the lo()d an,t b e v c r a a e i n d u s t r i e s .
Mernbrcme Technology
No. 8 5
In operation the ceramic membrarte separates oxygen from air. w h i c h will be u s e d to b r e a k a-:)art m e t h a n e , the m a i n c o n s t i t u e n t of n a t u r a l Kas. In s i m p l e t e r m s the n a t u r a l gas flows a l o n g o n e side of the m e m b r a n e where it c o m b i n e s with oxygen m o l e c u l e s m i g r a t i n ~ t h r o u g h the membrar~e from the air flowing on the other side. The n a t u r a l gas b r e a k s aparl to form c a r b o n dioxide a n d h y d r o g e n - - a c o m b i n a t i o n t h a t forms the ' s y n t h e s i s gas'. This c a n t h e n be u s e d lo m a k e liquid diesel a n d other t r a n s p o r t a t i o n fuels, a n d c h e m i c a l s lot the p e t r o c h e m i c a l , r u b b e r , p l a s t i c s a n d fertilizer i n d u s t r i e s . H y d r o g e n c a n also be s e p a r a t e d a n d u s e d as a n energy source. According to Air P r o d u c t s , c o n v e n t i ~ n a l p r o c e s s e s c a n p e r f o r m the s a m e c h e m i c a l t r a n s f o r m a t i o n s , b u t the costs are higher. T h e s e p r o c e s s e s u s e two or more s t e p s to p r o d u c e the ' s y n t h e s i s ' gas a n d r e q u i r e expensive cryogenic air s e p a r a t i o n p l a n t s to p r o d u c e the n e c e s s a r y p u r e s t r e a m of oxygen. By c o n t r a s t , the c e r a m i c m e m b r a n e t e c h n o l o g y c o m b i n e s the e n t i r e ' s y n t h e s i s ' gas p r o c e s s into a single step. One of the m a i n driving forces behind the development ol lhe technoloffy is its applicabilily io distant ~as resources
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