Wednesday, 21 October 2015

5A Molecular Sieves For Hydrogen Production about Desiccant and Zeolites

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:

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.


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.

Tuesday, 14 July 2015

Molecular Sieve for Naphtha Drying

Naphtha is a hydrocarbon distillate which is the remaining from the process of coal tar or refining petroleum. It is a multifaceted mixture of chemicals that is broken down and converted into other chemicals from catalytic reforming or steam cracking.

Molecular Sieves

Molecular Sieve for Naphtha Drying
Molecular sieves are defined as a material that comprises very minute pores that have a similar size and shape. Because of this property, the smaller molecules of another material can easily pass through, but the larger molecules are blocked just like a sieve. This uniformity in its structure makes this material a great desiccant. In fact, some common examples of this would be activated charcoal/carbon or silica gel. These materials are used as desiccants for gases and liquids adsorbents that have tremendous capacity of adsorption than activated alumina and silica gel desiccant. It is extremely effective at removing water from liquid and gases. 

molecular sieve offers a variety of adsorption capacity based on molecular size, sieve crystal surface and shape of the molecule. It is most popular moisture adsorbing solution in industries because of superior adsorption efficiency compared to other moisture adsorption system.

Molecular sieve for naphtha drying are desorbed and hydrocarbons are dehydrogenated and used as desorbing agents.

The present invention relates to the preparation of high octane motor fuel sand more particularly relates to an improved process for upgrading naphtha for use as a blending stock in the preparation of high octane gasoline.

Present octane levels require the use of large quantities of relatively high octane blending stocks such as catalytic naphtha, polymer gasoline, hydrogenate and the like and permit the inclusion of much lesser amounts of light virgin naphtha than were formerly used in gasoline blending. This trendy away from the use of light virgin naphtha as a blending stock has created surpluses of such naphtha at many refineries.

The process of the invention may be further said -by considering a typical application of the process in a commercial refinery processing

The product naphtha fraction obtained from the process has the following composition and octane values:

Table II Component B./D. Vol. RON RON-H5 Percent Clear cc. TEL
Isoparains and Cyclics- 6, 200 72 87. 1 100 Olenn 2, 424 28 96. 7 100. 3 8, 624 100 90. 5 100. 1

Wednesday, 13 May 2015

Molecular Sieve Desiccant for Removal of Mercaptan and H2S

Molecular sieve Adsorbent:


Molecular sieve Adsorbent has the aptitude to catch the standard Mercaptan found in multitudinous of liquid and gaseous application therefore on getting high percent of unpolluted and pure product at the top. Whereas for gas sweetening and liquid hydrocarbons, Molecular Sieve Desiccant | Removal of Mercaptan and H2S is required in method of dehydration to get the clean gas empty of any form of impurities. The molecular sieve adsorbent will be utilized for wide selection of applications relying upon its molecular size and form. There are varied styles of molecular sieves beads kind obtainable like 3A, 4A, 54 and 13X.
Molecular Sieve for Powder Coating:

Apart from beads kind, the molecular sieve is additionally found in pellets kind that is created from clay desiccants, carbon and water softener. The molecular sieve has been thought-about because the strongest adsorbents that are having powerful surface assimilation capability with CO2, oxygen, water and alternative molecules that is a smaller amount compared to its pore size. Moreover, all the molecular sieve adsorbents are obtainable in powdery, pelleted and beaded kind. The Molecular Sieve Powder may be a fantastic crystalline alyminasilicate that has the superb ability to function the adsorbent to gases and liquids. It carries out the separation and absorbs method relying upon the scale of molecules. It could be the most important for removing the moisture content in the powder and makes it to purify the substances of sample solvents that have taken in the molecular sieve desiccants.

Purifying and Drying:

5A Molecular sieve of 13X is utilized for purifying and drying the chemical element so as to form it purposeful for inhalation. However, you will be able to conjointly declare that this specific sicative aids the individuals to inhale pure air in wonderful manner. Moreover, it functions by permitting the encompassing air via molecular sieve found within the kind of pellets and beads. 13X has the aptitude to differentiate the chemical element from liquid of gas and provides a pure chemical element flow move up to 94-95 p.c. The larger surface assimilation capability is massively found in 13X molecules than that of blood group chemical element making molecular sieve.

It conjointly will increase the profits of making pure chemical element by reducing the energy consumption and operational prices. The molecular sieves desiccants are found in varied varieties like pellets, beads and powdery kind to get the simplest potential answer in surface assimilation moreover on meet the requirements of assorted industries. PSA is one in all the wide used technologies currently for the sake of separating chemical element from air. Molecular sieve is found in varied sizes like 3A, 4A, 5A and 13X. There are lots of desiccants are placed in the pellets and to obtain the chemical elements. The liquid of gas can provide various purest forms of chemical substances to absorb the effective way of using molecular sieve solvents for absorbing the sample of chemical element for that.  While using the molecular sieve substances, there are lots of free sample of solvents are taken into the small amount of the samples.

Monday, 5 January 2015

Molecular Sieve Powder – A Widely Used Desiccant

Molecular sieve powder is utilized widely as a desiccant for drying up various environments and enclosed packaging units. It is a dehydrated synthetic powdery sieve which is easy to use. It has quick absorb ability and is, therefore, utilized in all kinds of adsorptive circumstances where maintaining the level of humidity is a must. These sieves can easily eliminate bobbles, remove water content and enhance strength. However, before you start using this desiccant in your manufacturing unit for packaging products, you must understand its functionality carefully. 

Molecular Sieve 3A
Molecular Sieve 3A
Molecular sieve 3a powder and molecular sieve 4a powder are the most popular forms of desiccants used in all kinds of manufacturing units. When packaging and storing items, these desiccants are utilized for keeping the moisture level under control. Known for its exceptional absorption capability, these are created using top quality ingredients. 3a molecular sieves are utilized as a powerful catalyst in industries like oil and petroleum. Eco-friendly, pure and precise in composition, this molecular sieve powder is easily available in the market. For meeting the huge demand, more and more manufacturers have started creating sieve powder units for various environments. 

Key Features

Reduces water content and maintains humidity level

Improves strength and uniformity

Molecular sieve powder and beads have the efficient performances of selectivity and adsorption. It is quite suitable with various applications of refrigerant desiccants and insulating glass desiccants. Sieve powder is used as a powerful catalyst in the process of purifying the crude oil. One of the best things about using this form of desiccant is that it is non-corrosive and non-hazardous in nature. 

Applications of Molecular Sieve Powder

Handling aid for efficient polymer production

A powerful desiccant for the polymer material production

2K- Polyurethane molding and coating

Efficient in Azeotropic and Ketal reactions

1K- Polyurethane storage safety

Storage safety for all kinds of metallic pigment paints

Key Essentials to Note While Using Molecular Sieve Powder

Even though the sieve powder is not flammable in nature; however, if it gets exposed to moisture, then it starts giving out heat. The dust that is formed through these sieve beads can also end up irritating sensitive tissues in your body and so you must wear the right gear for eye protection while handling these sieves.

Molecular sieve powder if used properly can prove to be a great alternative for you as far as keeping various environments dry is concerned.