What is molecular sieve 13X?

BASF 13X Molecular Sieve is a highly selective adsorbent designed for the elimination of trace contaminants from air and other gases. It can also be used for the desulphurization (sweetening) of natural gas and other fluids, especially for the removal of mercaptanes, and for drying of gases and liquids.

What are the types of molecular sieves?

There are four main types of molecular sieves: 3A, 4A, 5A, and 13X. The type is dependent on the molecule’s chemical formula, and it determines the pore size of the molecular sieve.

What is 13X zeolite?

Zeolite 13X is the most commonly used adsorbent in the air separation for oxygen production. Zeolites are aluminosilicate crystallines of alkaline or earth alkaline elements such as sodium, potassium and calcium. Detailed description of zeolites structure is accessible in relevant sources.

What is the difference between 3A and 4A molecular sieves?

3A is the preferred Molecular Sieves adsorbent for the commercial dehydration of unsaturated hydrocarbon streams. 4A is the preferred Molecular Sieves adsorbent for the static dehydration in a closed gas or liquid drying system.

What is molecular sieve 3A?

BASF 3A Molecular Sieve is a synthetic crystalline aluminosilicate with a regular micropore structure. BASF 3A Molecular Sieve is commonly used for drying of gases and polar liquids (methanol, ethanol) and easily polymerizable substances, such as unsaturated hydrocarbons (ethylene, propylene, acetylene and butadiene).

What are 4A molecular sieves?

4A molecular sieve means the molecules with the pore size of 4A0 or 4 angstroms are used for the adsorbing process. It simply signifies that molecules with the pores size larger than 4a cannot be used for adsorption. Generally, they are the sodium forms of the Type A structure.

What are type A zeolites?

Zeolite A, also known as LTA (Linde Type A), belongs to the family of aluminosilicate molecular sieves. It is characterized by the formula |(Na+12(H2O)27|8[Al12Si12O48]8 which corresponds to its most common hydrated sodium form (International Zeolite Association -IZA).

How do you make zeolite 13X?

The optimum synthesis conditions to get purity 13X zeolite were found to be alkali fusion of kaolin with the weight ration of NaOH/kaolin = 2.0 at 200 degrees C for 4 h, and crystallized at 90 degrees C for 8 h after homogenization by agitated at 50 degrees C for 2 h.

What are 3A molecular sieves used for?

BASF 3A Molecular Sieve is commonly used for drying of gases and polar liquids (methanol, ethanol) and easily polymerizable substances, such as unsaturated hydrocarbons (ethylene, propylene, acetylene and butadiene).

What is 4A molecular sieve?

The 4A molecular sieve is an alkali metal aluminosilicate with an effective pore opening of approximately 4 angstroms. The sodium form of type A is widely used as a general-purpose drying agent and has good physical and adsorption properties.

What is molecular sieve 4A?

What is 5A molecular sieve?

Molecular sieve 5A is a calcium form of alkali alumina silicate with an effective pore diameter of 5A°. It will adsorb all the molecules with a kinetic diameter of fewer than 5 angstroms and exclude higher than that. 5A will also adsorb a molecule that 3A and 4A will adsorb.

How many types of zeolite are there?

Zeolite Types. Zeolites employed in the manufacture of the FCC catalyst are synthetic versions of naturally occurring zeolites called faujasites. There are about 40 known natural zeolites and over 150 zeolites which have been synthesized.

What is 4A zeolite?

Doucil®4A zeolite. DOUCIL® 4A is a zeolite of the first generation optimized for use as a builder, liquid carrier and/or processing aid in laundry detergent products, helping manufacturers to produce detergents with excellent physical properties and cleaning performance.

What is Zeolite formula?

Zeolites are the aluminosilicate members of the family of microporous solids known as “molecular sieves”, and mainly consist of silicon, aluminum, oxygen, and have the general formula MxAlxSi1−xO2·yH2O where M is either a metal ion or H+.

How do you make a zeolite membrane?

One of the most direct methods of preparation of zeolite-containing membranes is to embed zeolite crystals in a matrix. [2,6] Sealing the gaps between zeolite crystals with a gas-tight matrix can provide a membrane configuration. The application of this method of membrane preparation, however, is limited.

What is a type zeolite?

Type A zeolites are synthetic, hydrous, alkali aluminosilicates, with exceptionally advantageous structural channels and cavities1. The cubic framework structure is commonly used as a selective sorbent for drying gases and solvents.

How are zeolites classified?

Moreover, zeolites are broadly divided into two categories named as natural and synthetic zeolites [265]. … They can be categorized into small-pore zeolites, medium-pore zeolites, large-pore zeolites, and extra-large-pore zeolites according to the microporosity shown in Table 7 [258].

What is 3a zeolite?

Molecular sieve is also know as a zeolite. A zeolite is a conformation of hydrated aluminosilicates of sodium, potassium, calcium, or other cations. Zeolites can be dehydrated and rehydrated, making them useful in drying applications.

What is 5A zeolite?

Molecular sieve 5A, also called zeolite 5A or zeolith 5A, is one type of aluminosilicate crystal with average pores measuring of 5 angstrom (0.5 nm). Molecular with kinetic diameter smaller than 5 angstrom will be adsorbed by zeolite 5A, otherwise be excluded.

What is the difference between Type A and type 13X sieves?

This type of molecular sieve has a high rate of adsorption and desorption, a higher rate of contamination resistance and a high crush strength. The 13X molecular sieve is the sodium form of zeolite X and has a much larger pore opening than the type A crystals, with an effective pore diameter of 10 angstroms.

What is a 13x sieve used for?

BASF 13X Molecular Sieve is a highly selective adsorbent designed for the elimination of trace contaminants from air and other gases. It can also be used for the desulphurization (sweetening) of natural gas and other fluids, especially for the removal of mercaptanes, and for drying of gases and liquids.

What are the different types of molecular sieves available?

Molecular Sieves are available in: 1 3A Molecular Sieve 2 3A EDG Molecular Sieve 3 4A Molecular Sieve 4 4A Blue Indicating Molecular Sieve Desiccant

What is a 3A molecular sieve?

The 3A molecular sieve is an alkali metal aluminosilicate with a pore opening of approximately 3 angstroms. Type 3A is made by ion-exchanging the sodium in the type 4A sieve with potassium. The 3A molecular sieve will exclude most molecules except water, making it very selective.