Air Products has licensed its proprietary adsorption-based
monomer recovery technology to Pennsylvania-based Cryo
Technologies, a global supplier of custom engineered process
equipment, the companies said Tuesday.
Air Products says its process for unreacted olefin
recovery combines partial condensation with pressure swing
adsorption to deliver two product streams: a recovered
hydrocarbon product for recycle and subsequent polymer
production, and a nitrogen stream for reuse in facility
operations, such as polymer degassing and pneumatic
The Air Products technology, developed with Department of
Energy (DOE) support under an industrial technologies program,
enables nearly 100% recovery of hydrocarbons and nitrogen from
the feed, creating a high-purity nitrogen product.
An additional benefit, compared with competitive systems, is
low maintenance cost since the adsorbent
material used in the pressure swing adsorption process has a
useful life compared to other system components, according to
Suitable for new, world-scale plants or as a retrofit process
to existing facilities, the technology provides a short payback
period on invested capital and enables polyolefin manufacturers
to avoid flaring that results in emissions of NOx, VOCs, CO,
The selection of Cryo Technologies and execution of a
license agreement with them are the result of an extensive
search and qualification process, said Jeffrey Knopf,
manager of licensing and technology transfer at Air Products.
"We are confident that Cryo Technologies has the knowledge and
capabilities to offer unique process equipment that meets site
specific customer needs and will complement Air Products
efforts to provide solutions that help drive customers
profitable growth and sustainability.
The technology license agreement enables Cryo Technologies to
design and offer Air Products unreacted olefin recovery
technology, which has been proven through the development,
testing, and successful operation of three full-scale facilities that Air Products
designed and supplied to polypropylene and polyethylene
manufacturers in the US.
Cryo Technologies is pleased to have the opportunity to
offer the benefits of Air Products unreacted olefin
recovery technology to the petrochemical industry, said
Richard Hessinger, president of Cryo Technologies.
Our experience and comprehensive capabilities in
custom-engineered and packaged process systems, combined with
Air Products proprietary adsorption-based technology, will enable polyethylene
and polypropylene production facilities to improve their
economics and minimize emissions in their monomer recovery
processes," he added.