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VP-Sorb 100 Vapor Sorption Analyzer

VP-Sorb 100 Vapor Sorption Analyzer

* The VP-Sorb 100 series adopt volumetric method to determine adsorption/ desorption isotherms;

* Fully automated operation to test BET surface area, mesopore and micropore size by using gases like N2, Ar, CO2, CO and also supports vapor;

* Phase of adsorbate transforming from liquid to gas by evaporator in room temperature;

* Sample pretreatment/ degassing temperature can up to 400 ℃.

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PRODUCT DETAILS

* The VP-Sorb 100 series adopt volumetric method to determine adsorption/ desorption isotherms;

* Fully automated operation to test BET surface area, mesopore and micropore size by using gases like N2, Ar, CO2, CO and also supports vapor;

* Phase of adsorbate transforming from liquid to gas by evaporator in room temperature;

* Sample pretreatment/ degassing temperature can up to 400 ℃.

VP-Sorb 100 Vapor Sorption Analyzer Introduction

Water vapor adsorption isotherm is the basic data studying multi-component adsorption equilibrium containing water vapor on porous materials. Its testing method mainly includes a gravimetric method and a volumetric method. 


The gravimetric method is that the adsorption/desorption amounts of vapors or gases are determined by weighting the change in weight of the sample before and after adsorption/desorption at a certain partial pressure on a microbalance. 


The volumetric method is that when a certain amount of vapor or gas is put into a sample tube with a certain volume, the pressure change will occur before and after adsorption/desorption, then the adsorption amount at the partial pressure point is calculated by the gas state equation. 


The VP-Sorb 100 series adopt volumetric method to determine adsorption/ desorption isotherms. It is fully automated operation and can test BET surface area, mesopore and micropore size by using gases like N2, Ar, CO2, CO and also supports vapor.


VP-Sorb 100 Vapor Sorption Analyzer Specifications

Items

VP-Sorb   100A

VP-Sorb   100C

VP-Sorb   100B

Principle

Static volumetric

Testing Data

BET surface area: mini 0.001 m2/g

Pore size: 0.35 – 500 nm (BJH, DR, DA, HK, SF, MP, t-plot etc.)

Adsorbate Gas

N2, Ar, Kr, CO2

Vapor Adsorbate

CO, NH3 etc. which is liquid in room temp 

(except corrosive, toxic, hazardous gases)

Same as left, but P0 is over 1Kpa

Evaporators

1

Vapor Sorption Port

1 (0.1 torr)

1 (10 torr)

Micropore Port

1 (0.1 torr)

No

Pressure Sensors

7

5

4

Cold Trap Qty

1

2

Degassing Port

No (can be in situ)

1

Thermostatic Bath

1 (0-50 ℃)

Vapor Recovery

cold trap in analysis port

2 cold traps, in analysis and degassing ports

Dewar

1L*2, 3L*1

3L*2

Vacuum Pump

1 corrosion resistant pump

1 corrosion resistant pump, 1 mechanical pump

Turbo Pump

1

No


VP-Sorb 100 vapor sorption analyzer profile


VP-Sorb 100 Vapor Sorption Analyzer Features

  • Phase of adsorbate transforming from liquid to gas by evaporator in room temperature, implements test requirements;

  • Adsorption pressure: P/P0 is less than 1 (P0 is saturated vapor pressure of adsorbate in adsorption temperature);

  • Vacuum pump: corrosion resistant two stage rotary vane vacuum pump, further option with molecular pump;

  • Working temperature: -196℃ is provided by liquid nitrogen in low temperature Dewar flask; 0 - 50℃ is provided by thermostatic water bath；

  • Number of gas inlet: 4 standard inlet ports, also can customize according to request. (extend to 8 or 12);

  • Gas recovery: cold traps can effectively avoid contamination to vacuum pump from vapor;

  • Sample pretreatment/ degassing temperature can up to 400℃ and by in situ design operation.

  • Application fields like BET surface area and pore size distribution, various gas & vapor adsorption isotherms, isosteric heat of adsorption, and selective adsorption coefficient.


VP-Sorb 100 vapor sorption analyzer report 1VP-Sorb 100 vapor sorption analyzer report 2

                                        Adsorption & desorption isotherm                                                                        Pore Diameter


  

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