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molecular sieve

  • 3A
  • shanghai
  • Coating Auxiliary Agents, Paper Chemical...
  • L/C,T/T,Western Union
  • Tag:molecular sieve 3a,carbon molecular sieve
  • Supplier - Pingxiang Prosper Industry and Trade Co., Ltd.
  • China (Mainland)China (Mainland)
  • US$1 Million - US$2.5 Million
  • Manufacturer, Trading Company
  • North America,South America,Eastern Europe,Southeast Asia,Africa,Oceania,Mid East,Eastern Asia,Western Europe
  •   
  • Ms.Willa
  • 86-799-6666018
Post Date : March 26
MEMBRANE SWITCH KEYBOARDS
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Item specifics

3A
shanghai
Coating Auxiliary Agents, Paper Chemical...
L/C,T/T,Western Union
1 Ton/Tons
Molecular Sieve
Adsorbent
Chemical Auxiliary Agent

Specifications

1.high quality
2.very low wear ratio
3.mainly used for drying and absorption

Molecular Sieve 3A is an alkali metal alumino-silicate; it is the potassium form of the type A crystal structure. Type 3A has an effective pore opening of about 3 angstroms (0.3nm). This is large enough to allow in moisture, but excludes molecules such as unsaturated hydrocarbons which can potentially form polymers; and this maximises lifetime when dehydrating such molecules.

Typical Chemical Formula
0.45 K2O . 0.55 Na2O . Al2O3 . 2 SiO2 . 4.5H2O
SiO2 : Al2O3 2

Technical Parameter

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

≥96

≥96

Bulk density

g/ml

≥0.68

≥0.68

≥0.68

≥0.68

Wear ratio

%

≤0.20

≤0.25

≤0.10

≤0.10

Crushing strength

N

≥45/cm

≥60/cm

≥30/piece

≥70/piece

Static water adsorption

%

≥20

≥20

≥20

≥20

Ethylene adsorption

%

≤3.0

≤3.0

≤3.0

≤3.0

Water content, as shipped

%

≤1.5

≤1.5

≤1.5

≤1.5

Typical Application
1) Drying of unsaturated hydrocarbons (e.g. ethylene, propylene, butadien)
2) Cracked Gas Drying
3) Drying of natural gas, if COS minimization is essential, or a minimum co-adsorption of hydrocarbons is required.
4) Drying of highly polar compounds, such as methanol and ethanol
5) Drying of liquid alcohol
6) Static, (non-regenerative) dehydration of insulating glass units, whether air filled or gas-filled.
7) Drying of refrigerants

Regeneration
molecular sieve Type 3A 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 3A molecular sieve, a temperature of 200-230°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.

Size
3A - Zeolites are available in beads of 1-2 mm, (10x18 mesh) 2-3 mm, (8x12 mesh) , 2.5-5 mm, (4x8 mesh) and as powder, and in pellet 1.6, 3.2.

Attention
To avoid damp and pre-adsorption of organic before running, or must to be reactivated.

Company Related ProductsView the Seller's Products
honeycomb ceramic monolith

honeycomb ceramic monolith

honeycomb ceramic monolith

honeycomb ceramic monolith
1.Less equipment costs,
2.efficient heat-recovery
3.material:cordierite or mulli

honeycomb ceramic monolith:

Chemical composition

SiO2

Al2O3

MgO

Fe2O3

Na2O

K2O

<72%

>18%

0.18-0.45%

<1%

<1%

2.7-4.5%

Physical properties

Index

Value

Gross density(g/cm3)

2.3-2.45

Thermal volume(KJ/Kg. °C)

800-900

Thermal shock resistance(°C)

>300

Max operation Temp.(°C)

1100

Acid resistance(%)

>99

Alkali resistance(%)

>85

Water absorption(Wt%)

<0.5%

Technical data

Spec.

Quantity of channels

Wall thickness (mm)

Surface area (m2/m3)

Free volume (%)

Packaging density (kg/m3)

Weight per piece (kg)

150*150*150

60*60

0.5

1315

70

910

3.07

150*150*150

50*50

0.7

1050

58

920

3.11

150*150*150

40*40

0.7

883

65

908

3.07

150*150*150

25*25

1.0

573

67

730

4.93

Application

Used in heat storing HTAC to exchange gas and store heat

Heat storing honeycomb carrier is also called high temperature incendiary heat storing carrier. It is the key and core part of heat storing HTAC. It has been widely used to all kinds of pushing-steel heating furnace, stepping heating furnace, heat treatment furnace, forging furnace, dissolving furnace, steel wrapping/middle wrapping baking apparatus, soaking pit, radiation tap incendiary apparatus, covering furnace, high temperature hot-blast stove in metallurgical machine building and all kinds of ceramic cellar stove, glass cellar stove in building materials, and all kinds of tap heating stove, splitting stove, other industrial stove cellar, too.

Heat storing HTAC is a new concept incendiary technology. It combines organically recover smoking gas and remaining heat with efficiently burning and reducing discharging Nox, so it can get the double aims of saving energy ultimately and reducing discharging Nox ultimately. The technology characters as follow:

Smoking gas and remaining heat recovering device is adopted to replace and exchange smoking gas, air and coal gas, so while they pass the heat storing, they can recover ultimately physical heat in high temperature smoking gas and save energy (normally 10%~70%)and improve the efficiency of heat apparatus, and reduce replacing of CO2 (10%~70%).

By expanding the area of flame burning (almost to the edge of stove) by poor oxygen burning, it can make the temperature in stove even, so Nox in smoking gas reduced above 40%.

Because the average temperature in stove is raised and heat conduction is improved, heat apparatus in the same size can improve output above 20% and reduce the cost of apparatus.

Low calorific value fuel can get high stove temperature with high temperature preheats gas or high temperature preheats gas, so it has expanded the low calorific value fuel use range.


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Detail more >>
molecular sieve

molecular sieve

molecular sieve

1.high quality
2.very low wear ratio
3.mainly used for drying and absorption

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). 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.

Typical Chemical Formula
Na2O Al2O3 2.0SiO2 4.5H2O
SiO2: Al2O3 ≈2
Technical Parameter

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

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
Size
4A - Zeolites are available in beads of 1-2 mm, (10x18 mesh) 2-3 mm, (8x12 mesh) , 2.5-5 mm, (4x8 mesh) and as powder, and in pellet 1.6”, 3.2”.

Attention
To avoid damp and pre-adsorption of organic before running, or must to be reactivated.

Detail more >>
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