China 4A Zeolite Molecular Sieve for Methanol removal from liquid and Removal of carbon dioxide, ammonia manufacturers and suppliers

4A Zeolite Molecular Sieve for Methanol removal from liquid and Removal of carbon dioxide, ammonia

Short Description:

Molecular Sieve type 4A is an alkali alumino silicate; it is the sodium form of the Type A crystal structure. 4A molecular sieve has an effective pore opening of about 4 angstroms (0.4nm). BESTN type 4A molecular sieve will adsorb most molecules with a kinetic diameter of less than 4 angstroms and exclude those larger. Such adsorbable molecules include simple gas molecules such as oxygen, nitrogen, carbon dioxyde and straight chain hydrocarbons. Branched chain hydrocarbons and aromatics are excluded.

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Description

Chemical Composition

Item	Unit	Technical data
Shape		Pellet		Sphere
Diameter	mm	1.5-1.7	3.0-3.3	1.7-2.5	3.0-5.0
Size ratio up to grade	%	≥98	≥98	≥98	≥98
Bulk density	g/ml	≥0.66	≥0.66	≥0.70	≥0.70
Wear ratio	%	≤0.20	≤0.40	≤0.20	≤0.20
Crushing strength	N	≥30/cm	≥45/cm	≥30/p	≥70/p
Static water adsorption	%	≥21	≥21	≥21	≥21
Static methanol adsorption	%	≥15	≥15	≥15	≥15
Water content, as shipped	%	≤1.5	≤1.5	≤1.5	≤1.5

$BPBYCUG`MW{]ZCH8})_QNH6$

Application

● Drying and removing of CO2 from natural gas, LPG, air, inert and athmospheric gases, etc.
● Removal of hydrocarbons, ammonia and methanol from gas streams (ammonia syn gas treating)
● Special types are used in the air break units of buses, trucks and locomotives.
● Packed in small bags, it may be used simply as a packaging desiccant.

Regeneration

Molecular sieve Type 4A can be regenerated by either heating in the case of thermal swing processes; or by lowering the pressure in the case of pressure swing processes.
To remove moisture from a 4A molecular sieve, a temperature of 250-280°C is required. A properly regenerated molecular sieve can give moisture dew points below -100°C.
The outlet concentrations on a pressure swing process will depend on the gas present, and on the conditions of the process

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