Bulk desiccants
Absorbents size comparison
chart - click here to display.
Silica Gel
Silica Gel indicating blue
Material Safety Datasheet
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Silica Gel indicating orange
Material Safety Datasheet
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Silica Gel non indicating
Molecular Sieve
What Are Zeolite Molecular Sieves?
Zeolite molecular sieves are crystalline structures that, on
a molecular scale, are not unlike sponges. They have a solid framework,
defined by large internal cavities where molecules can be adsorbed.
These cavities are interconnected by pore openings through which
molecules can pass, and because of their crystalline nature, the
pores and cavities are all precisely the same size. Depending
on the size of the openings, they can adsorb molecules readily,
slowly, or not at all, thus functioning as molecular sieves --
adsorbing molecules of certain sizes while rejecting larger ones.
The ability of these molecular sieves to attract and sort molecules
is also affected by the electrical charge or polarity of the molecules
being sorted. Synthetic zeolites possess the unique ability to
selectively adsorb molecules by size and polarity. This is the
key to their unusual efficiency as agents for drying and purifying
liquids and gases. Such abilities also serve as the basis for
separation.
Synthetic zeolites can be manufactured to provide a wide range
of desired adsorption characteristics or selectivities, and can
be used as a separation tool for numerous commercial applications.
Traditional molecular sieves work as desiccants, adsorbents,
and ion exchangers. UOP also offers high silica zeolites for non-traditional
applications, including the removal of organic bodies that can
cause odors or affect taste within food and beverage packaging
Molecular sieves have selective adsorption,that is to say it
will absorb the moleculars of which the diameter is less than
the pore size of molecular sieve. As for polar moleculars and
unsaturated moleculs, Molecular sieves have selective adsorption.
The bigger the polarity .the higher unsaturated ratio, the stronger
selective adsorption. Molecular sieves have high water absorption
even in high temperature, large space velocity or low content
of water, it has quite a higher water absorption capacity.
molecular sieve are divided into several types of 3A, 4A, 5A,
13X, IG Desiccant, 13XAPG, Refrigerant Desiccant according to
its use.
3A Molecular Sieve
Typical applications:
- Dehydration of many kinds of liquids (such as ethanol)
- Dehydration of air
- Dehydration of refrigerant
- Dehydration of natural gas or methane
- Dehydration of cracked gas, ethylene, propylene or butadiene
13X Molecular Sieve
Introduction
The pore size for 13X molecular sieve is about 10A. It can adsorb
any molecular smaller than 10A, mainly used as catalyze carrier,
co adsorption of CO2 and H2O and H2O, H2O and H2S, as a desiccant
for medical and air compressor systems, and can also be adjusted
to fit other various applications.
Typical applications:
- Purification and removal of H2O and CO2
- Dehydration and desulfuration of nature gas, liquid petro
gas and liquid alkane
- Drying of common gases
13X APG mol seive
Introduction
Type 13X APG molecular sieve is specially designed to co-absorb
CO2 and H2O for air cryo-separation industry. It has larger capacity
and faster adsorption speed for removal of CO2 and H2O to prevent
the bed gelation, it is suitable for any air cryo-separation plants
of any size and any types in the world.
Product profile - click here to
display a printable data sheet.
Absorbents size comparison chart
- click here to display.
PSA O2 HP MOLSIV™ ADSORBENT
Introduction
PSA O2 HP adsorbent was specifically developed for on-site generation
of oxygen in super-atmospheric pressure swing cycles. The nitrogen
selectivity of the product makes it particularly applicable for
this function.
PSA O2 HP molecular sieve can also be used to retrofit PSA O2
units containing older generation adsorbents to increase productivity
or to reduce power consumption.
Product profile - click here to
display a printable data sheet.
What Are Aluminas?
Introduction
Aluminas are a family of aluminum oxides (Al2O3) that can take
many forms. As a general term, “alumina” refers to the
lower temperature transition alumina forms. The most common use
for aluminas is in the manufacturing of aluminum, a metal commonly
used in beverage cans, automobiles, and many other applications
where a lightweight, durable metal is required. UOP manufactures
and markets two unique aluminas for use as adsorbents and catalysts,
as well as numerous other applications.
Activated aluminas are both high surface area beads and crushed
products that are “activated” by a proprietary process
to achieve specific surface chemistry and reactivity. Commonly
used as adsorbents, desiccants and catalysts, the chemistry, size
and structure of these aluminas are tailored to specific applications
at UOP’s ISO 9001:2000 certified plant in Baton Rouge, Louisiana.
Additives are also commonly used with activated aluminas to achieve
even greater performance in certain markets.
Versal aluminas are a family of high purity alumina powders available
in a variety of rheological and physical forms. They are used
primarily as catalyst supports, washcoat slurries, and binders.
Their many forms and uses have led us to name this versatile group
of alumina products “VERSAL.”
The forerunner of the Versal alumina line was the “gel”
alumina, a name which referred to the colloidal state of the powders.
Through our ongoing alumina development, UOP has expanded this
array to include pseudoboehmite, gamma and bayerite aluminas,
all with varying densities and dispersibility ranges. In addition
to being a key component in many commonly used catalysts, UOP’s
Versal aluminas are also used as adsorbents. They also play key
roles in the polishing, abrasives and surface coatings industries.
Product profile - click here to display
a printable data sheet.
Absorbents size comparison chart
- click here to display.
Insulating Glass Desiccant
Introduction
Insulating glass desiccant deeply co-adsorbs the resident moisture
and organics in Insulating Glass and keeps the IG clear and transparent
even at very low temperatures. More importantly, it can successfully
prevent the distortions from air pressure changes placed on the
glass thru the changing of the day-night temperatures. It carries
this out by thru desorption and adsorption to maintain a constant
air pressure. This resolves the problem of windows distortion
caused by IG expansion and shrinkage, preserving the life span
of IG windows.
 Carbon
Molecular Sieve
Introduction
The component of carbon molecular sieve (CMS) is carbon. CMS
takes the appearance of cylindrical black solid, contains countless
4 angstrom fine pores, it can be used to separate air into nitrogen
and oxygen .In industry, CMS can concentrate nitrogen from air
with PSA systems. Our CMS products have the character of large
nitrogen yield capacity; high nitrogen recovery. It can meet the
requirement of all types of PSA nitrogen systems.
Product profile - click here to display a
printable data sheet.
Catalyst support Ceramic Balls
Having stable chemical features and a low rate of water absorption,
Inert Alumina ceramic balls can resist high temperatures and high
pressure. Inert Alumina ceramic balls can also resist the corrosion
of acid, alkali and some other organic solvents, Inert Alumina
ceramic balls are able to stand the thermal shock (quick change
of temperature) during the manufacturing process. The main role
of these Inert Alumina ceramic balls is to increase the distribution
spots of gas or liquid, and to support and protect the activating
catalyst of low strength in the reactors and column/tower.
Applications:
As refractory bed top plugs and supports in order to protect the
catalyst bed from thermal impurities so that the catalyst bed
is kept intact in spite of wide pressure variation. Inert Aluminum
Ceramic Balls are widely used in petrochemical industry, chemical
industry, fertilizer industry, natural gas industry and environment
protection, etc.
Stoneware Catalyst Bed Supports are used routinely in the following
specific services: Ammonia plants, Hydrotreaters, Bender treaters,
Isomerization units, Chloride absorbers, pretreaters and reactors,
Claus units, Molecular sieve units, Diesel hydrotreaters, Naphtha
treaters, Fixed bed reformers, Reformer pretreaters, Fluidized
pollution control, Hydrocrackers (1st stage), VGO pretreaters,
Hydrogen plants.
Product profile - click here to display
a printable data sheet.
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