Molecular sieves can be defined as substances with discrete pore
structures that can
discriminate between molecules on the basis of size. Carbon
(CMS) are a special class of activated carbons. However, pore size
these materials is not always strictly discrete and furthermore,
molecules are not
hard spheres; they can sometimes squeeze into narrow pores. The
between activated or porous carbons and carbon molecular sieves is
defined. Carbon molecular sieves have most of the pores in the
molecular size range
but some conventional activated carbons also have very small pores.
distinction is that activated carbons separate molecules through
differences in their
adsorption equilibrium constants.
molecular sieves is that they provide molecular separations based
on rate of
adsorption rather than on the differences in adsorption capacity.
This behavior is
clearly evident in pressure swing adsorbers (PSA) where gas
The separation of nitrogen from air by PSA is the single most
important application of
Hangzhou Boda Purity Equipment Co., Ltd. is located at the
beautiful bank of Fuchun River, in the suburb of Hangzhou, between
West Lake and national scenic spots—Thousand-island Lake and Yaolin
Wonderland, with National Highway 320 passing through, enjoying
developed economy and convenient transportation, reputed as “the
land of fish and rice”.
Hangzhou Boda Purity Equipment Co., Ltd., founded in 2002,
specializes in R&D and production of gas purifying equipment,
pressure swing adsorption equipment and air separation plant. In
2004, our company was awarded National Key High-tech Enterprise.
Our company owns an independent provincial R&D center, provides
strong guarantee for constant upgrading of new products and new
technology, and obtains more than 30 national patents. The product
performance reaches the domestic advanced level. Our company always
takes technology as power, develops towards “high-quality,
professionalism”, makes innovation, cooperates with many research
institutes and forms our own scientific research system.
In the tenet of “Pragmatism, Innovation, Sustainable Operation” and
modern business philosophy, our company develops entity, expands
space, and adheres to the policy of “Market-oriented,
In the future, our company will be committed to sustainable
development of gas purifying equipment, pressure swing adsorption
equipment and air separation plant by virtue of the first-rate
quality, advanced technology and satisfactory service, displaying
“broadness and profoundness”.