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Palladium membrane gives ultra-pure H2
ISSN 0958-2118
July 1998
Number
Palladium membrane gives ultra-pure H, A research Matthey
collaboration
between
and Air Products
Johnson
and Chemicals,
Inc. has resulted in the development palladium purity
membrane
hydrogen
hydrogen
feed
semiconductor
to produce
from
of a new ultra-high
higher
streams
impurity
for
use
in
manufacturing.
The two companies say that this “breakthrough technology” virtually eliminates carbon monoxide (CO), carbon dioxide (CO,), and methane (CH,) contamination in hydrogen which can hinder semiconductor device performance. The two companies have fded for a joint patent on the technology, and revealed that it will initially be used by Air Products in major semiconductor manufacturing projects in the Pacific Rim. The new technology stemmed from work by Air Products on Johnson Matthey hydrogen
US Filter/Culligan Shortly
after the completion
US$lS
bn acquisition
Technologies,
lands US$200M
of US Filter’s
of Culligan
the new subsidiary
Water
signed an
agreement with The Republic of Turkmenistau to provide more than US$~OO million of water treatment equipment and services.
It was reported that the agreement covers a number of projects in the former Soviet state, that are expected to extend for more than 5 years. The projects include several sea and brackish water desalination plants in urban, industrial and agricultural areas, as well as groundwater reclamation and aquifer control in the capital city of Ashgabat. Turkmenistan, which is located in the desert region of Central Asia, bordering the Caspian Sea, Iran and Afghanistan, needs to improve its water infrastructure to allow for future industrial development and to serve its communities in this harsh arid environment. US Filter says the acquisition of Culligan will further consolidate US Filter’s position as the world’s largest global water treatment company, and perhaps more importantly, will now offer
Copyright No part of
(D 1998 Elsevier
this publication
purifiers that operate at flow rates of 500 standard lit& minute. Air Products tested the hydrogen purifiers using a feed stream which simulated actual levels of impurities that might be found at customer’s sites. It was found that those impurities included CO, CO, and CH, in concentrations as high as 20 parts per million for each impurity. Johnson Matthey’s business manager, Jeff Lucht, said ‘Air Products found that carbon - from the CO and CO, - was passing through the palladium diffusion membrane and creating methane on the pure side. Methane cannot be present in the epitaxial growth of silicon”. The companies disclosed that to combat this problem, the new technology employs a methanation catalyst .that converts the CO
by any form or by any means, electronic,
For further information contact: Wilson Chu, Johnson Matthey, 460 East Swedesford Road, Wayne, PA 19087-1880, USA. Tel: +I 610 971 3105: Fax: +I 610 971 3124.
deal
US Filter a huge distribution network of over 1400 dealers and 750 franchisees. US Filter said that it will use this network to cross-sell products in commercial and industrial markets that it previously could not reach, including new deals in the former Soviet Union. To help achieve this, US Filter Chief, Richard Heckmann, said the company aims to raise Culligan’s advet&ing budget significantly and accelerate the introduction of new products to generate new revenue. Combined, the two companies will have more than US$4.5 billion in revenues, 2,000 locations, and more than 20,000 employees in 90 countries. Shortly after the acquisition was completed, it was reported that Douglas A. Pertz, 43, former president, CEO and director of Culligan Water Technologies had resigned. For further information contact: US Filter Corporation, 40-004 Cook Street, Palm Desert, CA 92211, USA. Tel: +I 760 340 0098; Fax: +I 760 341 9368.
Science Ltd. Englandl98/$19.00
may be reproduced,
and CO, to CH,, allowing the palladium membrane to easily separate the CH, from the hydrogen. According to Daniel M. Buck, Air Products’ semiconductor market segment manager, the new technology will facilitate the use of ultrahigh purity hydrogen in locations where commercially available hydrogen sources contain relatively high levels of contaminants. Buck said “The technology will allow our customers to deliver the same ultra-high purity hydrogen quality to any of their facilities world-wide”.
per item.
stored in a retrieval system, or transmitted
mechanical,
photocopying,
recording or otherwise,
without the prior permission of the publishers. (Readers in the USA, please see special regulations listed on page 2
ELSEVIER ADVANCED TECHNOLOGY
** Q
July 1998
Number
Palladium membrane gives ultra-pure H, A research Matthey
collaboration
between
and Air Products
Johnson
and Chemicals,
Inc. has resulted in the development palladium purity
membrane
hydrogen
hydrogen
feed
semiconductor
to produce
from
of a new ultra-high
higher
streams
impurity
for
use
in
manufacturing.
The two companies say that this “breakthrough technology” virtually eliminates carbon monoxide (CO), carbon dioxide (CO,), and methane (CH,) contamination in hydrogen which can hinder semiconductor device performance. The two companies have fded for a joint patent on the technology, and revealed that it will initially be used by Air Products in major semiconductor manufacturing projects in the Pacific Rim. The new technology stemmed from work by Air Products on Johnson Matthey hydrogen
US Filter/Culligan Shortly
after the completion
US$lS
bn acquisition
Technologies,
lands US$200M
of US Filter’s
of Culligan
the new subsidiary
Water
signed an
agreement with The Republic of Turkmenistau to provide more than US$~OO million of water treatment equipment and services.
It was reported that the agreement covers a number of projects in the former Soviet state, that are expected to extend for more than 5 years. The projects include several sea and brackish water desalination plants in urban, industrial and agricultural areas, as well as groundwater reclamation and aquifer control in the capital city of Ashgabat. Turkmenistan, which is located in the desert region of Central Asia, bordering the Caspian Sea, Iran and Afghanistan, needs to improve its water infrastructure to allow for future industrial development and to serve its communities in this harsh arid environment. US Filter says the acquisition of Culligan will further consolidate US Filter’s position as the world’s largest global water treatment company, and perhaps more importantly, will now offer
Copyright No part of
(D 1998 Elsevier
this publication
purifiers that operate at flow rates of 500 standard lit& minute. Air Products tested the hydrogen purifiers using a feed stream which simulated actual levels of impurities that might be found at customer’s sites. It was found that those impurities included CO, CO, and CH, in concentrations as high as 20 parts per million for each impurity. Johnson Matthey’s business manager, Jeff Lucht, said ‘Air Products found that carbon - from the CO and CO, - was passing through the palladium diffusion membrane and creating methane on the pure side. Methane cannot be present in the epitaxial growth of silicon”. The companies disclosed that to combat this problem, the new technology employs a methanation catalyst .that converts the CO
by any form or by any means, electronic,
For further information contact: Wilson Chu, Johnson Matthey, 460 East Swedesford Road, Wayne, PA 19087-1880, USA. Tel: +I 610 971 3105: Fax: +I 610 971 3124.
deal
US Filter a huge distribution network of over 1400 dealers and 750 franchisees. US Filter said that it will use this network to cross-sell products in commercial and industrial markets that it previously could not reach, including new deals in the former Soviet Union. To help achieve this, US Filter Chief, Richard Heckmann, said the company aims to raise Culligan’s advet&ing budget significantly and accelerate the introduction of new products to generate new revenue. Combined, the two companies will have more than US$4.5 billion in revenues, 2,000 locations, and more than 20,000 employees in 90 countries. Shortly after the acquisition was completed, it was reported that Douglas A. Pertz, 43, former president, CEO and director of Culligan Water Technologies had resigned. For further information contact: US Filter Corporation, 40-004 Cook Street, Palm Desert, CA 92211, USA. Tel: +I 760 340 0098; Fax: +I 760 341 9368.
Science Ltd. Englandl98/$19.00
may be reproduced,
and CO, to CH,, allowing the palladium membrane to easily separate the CH, from the hydrogen. According to Daniel M. Buck, Air Products’ semiconductor market segment manager, the new technology will facilitate the use of ultrahigh purity hydrogen in locations where commercially available hydrogen sources contain relatively high levels of contaminants. Buck said “The technology will allow our customers to deliver the same ultra-high purity hydrogen quality to any of their facilities world-wide”.
per item.
stored in a retrieval system, or transmitted
mechanical,
photocopying,
recording or otherwise,
without the prior permission of the publishers. (Readers in the USA, please see special regulations listed on page 2
ELSEVIER ADVANCED TECHNOLOGY
** Q