Static-Volumetric Vapor Sorption Analyzer
Adsorbate
Such as Carbon monoxide, ammonia and substances that are liquid at room temperature.
(Except corrosive/ hyper-toxic/ hazardous gas)
Vapor sorption temperature 0 ~ 50 oC
Pore size distribution range
0.35 nm ~ 500 nm
Configuration comparison
| Parts | Vapor 200C | Vapor 100C | Vapor 100B |
| Evaporators | 1 | 1 | 1 |
| Vapor Sorption Station | 1 (1/0.1 Torr) | 1 (1/0.1 Torr) | 1 (10 Torr) |
| Micropore Analysis Station | yes | Yes | No |
| Pressure Sensors | 7 | 5 | 4 |
| Cold Trap | 1 | 2 | 2 |
| Preparation port | No ( Can be prepared in situ) | 1 | 1 |
| Thermostatic Water Bath | 1 (0 ~ 50 oC) | 1 (0 ~ 50 oC) | 1 (0 ~ 50 oC) |
| Dewar flask (1L) | 2 | No | No |
| Dewar flask (3L) | 1 | 2 | 2 |
| Mechanical Pump | One corrosion – resistance pump | One corrosion – resistance pump, and One mechanical pump | One corrosion – resistance pump (or One mechanical pump) |
| Molecular Pump | 1 | 1 | No |
Main Parameters
| Type | Vapor 200C | Vapor 100C | Vapor 100B |
| Testing Principle | The static volumetric method | ||
| Data Features | BET surface area: ≥ 0.01 m2/g Mesopore: 2 ~ 500 nm (BJH) Micropore: 0.35 ~ 2 nm (t-plot, DR, MP,DA, HK ,SF) | ||
| Physical Adsorbate | N2, Ar, Kr, CO2 | ||
| Vapor Adsorbate | Carbon monoxide, ammonia, and a substance that is liquid at room temperature. (Except corrosive, hyper-toxic, hazardous gas) | Same as Vapor 200C and Vapor 100C, but p0 is greater than 1KPa | |
| ysPihcal Adsorption Temperature | 77K, 87K | ||
| Vapor Adsorption Temperature | 0~50 oC | ||
| Steam Recovery | Cold trap in analysis station | Double cold trap in analysis and pretreatment station | |
| Pretreatment | Vacuum in-situ pretreatment | Separate preposition and vacuum in-situ pretreatment |
Applications
- Measurements of BET surface area and pore size distribution.
- Measurements of various gas and steam adsorption isotherms.
- Testing of isosteric heat of adsorption.
- Determination of selective adsorption
Features
- Preparation of adsorbate by evaporator.
- Use stainless steel and thermostatic control module as manifold. Constant temperature range: room temperature to 50 oC.
- Effective cold trap system prevents vapor from contaminating vacuum pump and environment.
- FFKM (Perfluoroelastomer) O rings for
Parameters
| Evaporator | Phase of adsobate 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 adsobate in adsorption temperature) |
| Vacuum Pump | Special corrosion – resistant vacuum pump, molecular pump |
| Pressure Sensor | 1000 Torr, 10 Torr, 1Torr |
| Sorption Temperature | -196 oC is provided by liquid nitrogen in low temperature Dewar flask; 0 ~ 50 oC is provided by thermostatic water bath. |
| Number of Gas Inlet | Providing separate gas inlets according to customer requirements. (Number of intakes is multiples of 4). |
| Gas Recovery | Effective cold trap system prevents from contaminating vacuum pump and environment by vapor. |
| Pretreatment | Vacuum in –situ pretreatment, temperature ≤400 oC ±1 oC. |