Carbon Molecular Sieve

Molecular Sieve takes the appearance of cylindrical black solid, contains countless 4 angstrom fine pores. It can be used to separate air into nitrogen and oxygen. In industry, CMS can concentrate nitrogen from air with PSA systems, up to 98%~99.999% N2 purity. Our CMS products have the character of large nitrogen yield capacity; high nitrogen recovery. It can meet the requirement of all types of PSA nitrogen systems. The carbon molecular sieve is widely applied in petroleum chemical industry, the heat treatment of metal, the electronic manufacture and food preservation industries.

Quick Details

Carbon Molecular Sieve (CMS) is a specialized adsorbent material used primarily for gas separation and purification processes. It is made from carbon-based materials and has a highly porous structure with a narrow pore size distribution, allowing it to selectively adsorb gases based on their molecular size and shape. CMS is widely used in industries such as air separation, hydrogen purification, and natural gas processing.

Key Features of Carbon Molecular Sieves

CMS has a network of micropores (pore size < 2 nm) that selectively adsorb smaller gas molecules while excluding larger ones.

The large surface area (typically 500-1500 m²/g) allows for high adsorption of target gases.

CMS can separate gases based on differences in molecular size, kinetic diameter, and adsorption rates.

Resists high temperatures and harsh chemical environments, making it suitable for industrial applications.

CMS can be regenerated by pressure swing adsorption (PSA) or temperature swing adsorption (TSA) processes, allowing for repeated use.

How Carbon Molecular Sieves Work

Gas molecules are adsorbed onto the surface of the CMS pores based on their size and affinity.

Smaller molecules (e.g., oxygen, nitrogen) are adsorbed more quickly or strongly than larger molecules (e.g., methane, carbon dioxide).

Adsorbed gases are released by reducing pressure (PSA) or increasing temperature (TSA), regenerating the CMS for reuse.

CMS is widely used in pressure swing adsorption (PSA) systems to produce high-purity nitrogen from air.

Oxygen and other gases are adsorbed, while nitrogen passes through.

Used to separate hydrogen from gas mixtures (e.g., syngas, refinery off-gases).

Removes impurities like carbon dioxide, water vapor, and heavier hydrocarbons from natural gas.

Biogas

Model			Carbon Molecular Sieve
Appearance			Black, extruded(pellet)
Nominal pore diameter			4 angstroms
Diameter (mm)			0.95mm, 1.1-1.3mm, 1.3-1.5mm, 1.5-1.8mm
Crushing strength (The test temperature≤20℃)			>50 N/PC
Bulk Density			630-680 KG/M3
Dust level			100PPM Max
Adsorbent time (S) (The test temperature≤20℃)			2*50(can be adjusted)
Type	Adsorption Pressure (MPa)	N2 Purity(%)	N2 quantity (M3/T.MT)	Air/N2 (%)
CMS-220	0.75-0.8	99.999	55	6.8
		99.99	100	4.8
		99.9	145	3.7
		99.5	220	2.6
CMS-240	0.75-0.8	99.999	65	6.6
		99.99	110	4.6
		99.9	160	3.5
		99.5	240	2.5
CMS-260	0.75-0.8	99.999	75	6.5
		99.99	120	4.6
		99.9	175	3.4
		99.5	260	2.3
CMS-280	0.75-0.8	99.999	90	6.4
		99.99	135	4.5
		99.9	190	3.4
		99.5	280	2.3

PSA NITROGEN & OXYGEN(1)100kb

<< Previous page

Next page >>