A desiccant is a substance which is mainly used in absorbing
water. It is widely used in excluding humidity which usually degrades and
damages the products that are sensitive to moisture.
A desiccant is a substance which contains the
properties of hygroscopic nature. One of the vital characteristics of a
desiccant is that it is a low surface vapour pressure. When the desiccant is
dry and cool, its surface vapour pressure becomes low and it can attract
moisture from air, especially when it is moist and pressure vapour is high.
When the desiccant becomes hot and wet, its surface vapour pressure reaches its
highest point and excludes water vapour to the surrounding of the air.
Zeolites are a volcanic kind of rock which are
consisted of hydrated aluminosilicates of the alkali metals of the earth.
Zeolites comprise of three dimensional frameworks of crystals of alumina,
anions, or tetrahedrite silica which are strongly bonded from all the corners.
When the level of humidity in the air stream
decreases below the saturation point of the zeolite, it starts to release
moisture back into the air stream. Hence, it does not eliminate moisture
completely. But it only retains or release the moisture, depending on the
relative level of humidity of the air stream and the saturation point of the
zeolite.
Molecular Sieve For Hydrogen Purification:
The role of "molecular sieve for hydrogen purification" is that it helps in producing hydrogen which does not occur
till the end of stream-methane process of reformation. Before the molecular
sieve is made in use, the feed stock which looks more or less like a natural
gas, has to undergo a process of hydrodesulfurization, a reformation of stream
process, a process of heat recovery and a CO conversion process. The
afore mentioned process-especially will further breakdown the complex form of
structure of molecular feed-stock, preparing it for the last stage for
purification of hydrogen.
Hydrogen Purification With The Help of 5A
Molecules:
5A molecules are specialized in the separation
of straight and chained-like form of hydrocarbons from one another. 13X molecular sieve is proficient in the exclusion of any additional CO2 or NH3, if
found anywhere. At this point, it will count upon the materials used during the
feed stock. There are more than 200 hydrogen which produces plants in the world
which are listed in the link mentioned below. Hydrogen plays a pivotal role in
many scientific and industrial applications in making the agent pure.
Applications:
It is applied in petroleum gas which is mainly
liquid in form and is used in natural gas process.
It is used on the basis of the required amount of
purification and specification.
The production of oxygen and hydrogen is depending mainly on
the swing of the pressure in the process of adsorption.
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