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Molecular sieve, activated alumina

Molecular sieves selectively adsorb molecules based on their size and shape, meaning they only adsorb molecules smaller than the pore size of the sieve. For small polar molecules and unsaturated molecules, they exhibit selective adsorption properties; the greater the polarity and the higher the degree of unsaturation, the stronger the selective adsorption. They have a strong water absorption capacity. Even under higher temperatures, larger space velocities, and lower moisture content, they still maintain a considerable water absorption capacity.

Keywords:

Molecular sieve, activated alumina

Product Description

  • 产品描述
  • Molecular Sieve

    Product Introduction

    Selective adsorption based on the size and shape of molecules, only adsorbing molecules smaller than the pore size of the molecular sieve. It has selective adsorption properties for small polar molecules and unsaturated molecules; the greater the polarity and the higher the degree of unsaturation, the stronger the selective adsorption. It has strong water absorption. Even under higher temperatures, higher space velocity, and lower moisture content, it still maintains a considerable water absorption capacity.

    Technical Parameters

    Model

    Bulk Density γ ρ (g/ml)

    Static Water Adsorption A ( % )

    Abrasion W ( % )

    Application Range

    3A

    0.60~0.68

    19~20

    0.3-0.6

    Used for drying petroleum cracking gas and olefins

    4A

    0.60~0.65

    20~21

    0.3~0.6

    Used for weather gas drying and alkane separation

    5A

    0.60~0.65

    20~21

    0.3~0.5

    Drying and purification of air, weather dehydration and desulfurization, petroleum desulfurization, and pressure swing adsorption oxygen production processes

    5A-DW

    0.45~0.50

    21~22

    0.3~0.6

    Dewaxing and pour point depression of aviation kerosene and diesel, and alkane separation

    10X

    0.50~0.60

    23~24

    0.3~0.6

    High-efficiency adsorbent used for drying, desulfurization, decarbonization, and aromatic hydrocarbon separation of gases and liquids

    13X

    0.55~0.65

    23~24

    0.3~0.5

    Drying, desulfurization, and purification of petroleum gas and natural gas

    13X-AS

    0.55~0.65

    23~24

    0.3~0.5

    Used for decarbonization and drying in the air separation industry

    Cu-13X

    0.50~0.60

    23~24

    0.3~0.5

    Used for desulfurization of aviation kerosene and corresponding liquid hydrocarbons

    Activated Alumina

    Product Introduction

    Has many capillary channels and a large surface area, can be used as an adsorbent, desiccant, and catalyst. It also determines affinity based on the polarity of the adsorbed substances, showing strong affinity for water, oxides, acetic acid, alkalis, etc. It is a micro-water deep desiccant and an adsorbent for polar molecules.

    Product Features

    Activated alumina is a porous alumina with strong adsorption performance, catalytic activity, high dispersion, and large specific surface area. It is suitable for drying various gases and liquids and is used as an adsorbent and desiccant in many reaction processes in petroleum, fertilizer, and chemical industries. , Catalyst and its carrier.

    Activated alumina is classified according to the main internal crystal composition atmosphere Y Type and X~P Types can be divided into activated alumina adsorbent, activated alumina desiccant, and activated alumina catalyst carrier according to their uses.

    Product Uses

    This product has many uses, which is one of its advantages. It can be used as a defluorination agent for high-fluoride drinking water, acid removal and regeneration agent for transformer oil, used in oxygen production industry, textile industry, electronic industry gas drying, drying of automatic instrument air, and in fertilizer and petrochemical drying industries to produce high-grade spray paint coatings with alumina. In addition, alumina can also serve as a strong adsorbent. If impurities are present, they will affect its refractory performance.

    Technical Parameters

    Industrial activated alumina is divided into 6 Categories:

    I Category: Used for adsorption of various hydrocarbon gases   Natural gas   Petroleum cracking gas, etc.   Dehydration, etc.

    II Category: Used for drinking water    Industrial water defluorination

    III Category: Used for regeneration of working liquid anthraquinone in hydrogen peroxide production process

    I Category V: Used for dechlorination of various gases and viscous resin liquids

    V Category: Used as various catalyst carriers

    V I Category: Used as air separation desiccant  

    Item

    Index

    I Category

    II Category

    III Category

    I Category V

    V Category

    V I Category

    AL 2 O 3 Content ( % )

    90

    90

    92

    90

    92

    88

    Loss on Ignition ( % )

    8

    8

    8

    8

    8

    9

    Bulk Density ( g /cm ³ )

    0.65

    0.70

    0.65

    0.60

    0.40

    0.60

    Specific Surface Area ( / g )

    --- a

    Pore Volume ( ml/ g )

    --- b

    Static Adsorption Capacity ( % ) ( RH=60%)

    12

    12

    ---

    10

    ---

    17

    Water Absorption Rate ( % )

    ---

    ---

    50

    ---

    40

    ---

    Abrasion Rate ( % )

    0.3

    0.5

    0.3

    0.5

    0.6

    0.3

    Compressive Strength

    Φ 0.5-1mm

    10

    10

     

    10

    10

    10

    Φ 1-3mm

    35

    35

    40

    35

    30

    40

    Φ 2-4mm

    50

    60

    55

    50

    40

    60

    Φ 3-5mm

    100

    110

    120

    100

    80

    120

    Φ 4-6mm

    130

    140

    150

    130

    100

    150

    Φ 5-7mm

    150

    160

    180

    150

    130

    180

    Φ 6-8mm

    200

    210

    220

    200

    200

    220

    Φ 8-10mm

    250

    260

    250

    250

    250

    280

    Φ 10 mm

    280

    ---

    ---

    ---

    ---

    ---

    Granularity Pass Rate ( % )

    93

    a.b Can be determined by negotiation between supply and demand parties

     

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