Molecular Sieve 4A(an alkali alumina silicate)

1.Usage: for drying and purifying 2.Applied to cracked gas,ethylene, propylene, butylene, butadiene, pentane

ANYUAN Molecular Sieve type 4A is an alkali alumina 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). It 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 dioxygen and straight chain hydrocarbons. Branched chain hydrocarbons and aromatics are excluded.

Properties and application of molecular sieve:

Type	Bulk density Yp(g/ml)	Water absorption   A(%)	Wear Ability W(%)	Appllcation
3A	0.60-0.68	19-20	0.3-0.6	Drying for pyrolysis gas and alkene
4A	0.60-0.65	20-21	0.3-0.6	Drying for nature gas and alkene separation
5A	0.60-0.65	20-21	0.3-0.5	Dehydration, desulfurization and purification of air, nature gas
				and petroleum in oxygen-making and hydrogen-making by PSA processes
5A-DW	0.45-0,50	21-22	0.3-0.6	Aviation kerosense, dewaxing and alkance sparation
10X	0.50-0.60	23-24	0.3-0.6	High efficiency absorbent for removal of H2O, H2S and CO2 in liquid,
				gas and arene separation
13X	0.55-0.65	23-24	0.3-0.5	Drying,desulfurization and purification for petroleum and nature gas
13X-AS	0.55-0.65	23-24	0.3-0.5	Drying and decarbonization for air separation
Cu-13X	0.50-0.60	23-24	0.3-0.5	Absorbent for removal of thioalcohol in aviation kerosen and the
				related liquid hydrocarbon

Molecular Sieve 4A(an alkali alumina silicate)