High Pressure STA HP 1/2
Only available high pressure STA ( High pressure TGA-DSC)
Description
On point
The LINSEIS High Pressure STA ( High pressure Tg-DSC) delivers unsurpassed performance. The system can be used to determine simultaneous changes of mass (TG) and caloric reactions (HDSC) under defined atmosphere and high pressure (up to 50/150 bar) in the temperature range -170°C up to 1800°C.
This instrument is unique because it is the only available high pressure TG-DSC worldwide.
The unique characteristics of this product are high precision, high resolution and long term drift stability. The high pressure STA Platinum Series was developed to meet the challenging demands of the high temperature and high pressure applications.
Main Application of High Pressure Thermogravimetry-Differential Scanning Calorimetry:
- Pyrolysis Studies
- Gasification of Coal and Biomass
- Testing of Getter Materials (O2, H2, etc.)
- Metal reduction / oxidation studies
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Specifications
| Model | High Pressure STA HP/1 |
|---|---|
| Temperature range: | RT up to 1000°C |
| Price range: | $$$ |
| Max. pressure: | max. 150 bar |
| Vacuum: | 10E-4 mbar |
| TGA | |
| Max. sample mass: | 2/15/100g |
| Resolution: | 0.1/0.5/10 µg |
| DSC: | |
| DSC resolution: | 0,3/0,4/1 µW |
| DSC sensors: | E, K, S, C |
| DTA: | |
| DTA sensitivity: | undefined |
| Options: | Pressure controlable Gas Mixing System (MFC´s) |
| Atmosphere: | inert, oxid.*, red., vac. |
* not possible with Graphite heater
| Model | High pressure STA HP/2 |
|---|---|
| Temperature range: | -170°C up to 1400/1600/1800°C |
| Price range: | $$$ |
| Max. pressure: | max. 50 bar |
| Vacuum: | 10E-4 mbar |
| TGA | |
| Max. sample mass: | 2/15g |
| Resolution: | 0,1/0,5 µg |
| DSC: | |
| DSC resolution: | 0,3/0,4/1 µW |
| DSC sensors: | E, K, S, C |
| DTA: | |
| DTA sensitivity: | undefined |
| Optionen: | Pressure controlable Gas Mixing System (MFC´s) |
| Atmosphere: | inert, oxid.*, red., vac. |
* not possible with Graphite heater
Accessories for high pressure STA
- Various gas boxes: manual, semi-automatic and MFC regulated
- Steam generator
- Pressure control
- Wide range of crucibles (gold, silver, platinum, aluminum, Al2O3, graphite, tungsten, stainless steel (high pressure), etc.)
- Various rotary and turbo-molecular pumps
Software
All LINSEIS thermo analytical instruments are PC controlled. The individual software modules exclusively run under Microsoft® Windows® operating systems. The complete software consists of 3 modules: temperature control, data acquisition and data evaluation. The 32 bit software incorporates all essential features for measurement preparation, execution, and evaluation of a STA measurement. Thanks to our specialists and application experts, LINSEIS was able to develop comprehensive easy to understand user friendly application software.
General Features
- Program capable of text editing
- Data security in case of power failure
- Thermocouple break protection
- Repetition measurements with minimum parameter input
- Evaluation of current measurement
- Curve comparison up to 32 curves
- Storage and export of evaluations
- Export and import of data ASCII
- Data export to MS Excel
- Multi-methods analysis (DSC TG, TMA, DIL, etc.)
- Zoom function
- 1 and 2 derivation
- Programmable gas control
- Statistical evaluation package
- Free scaling
TG – Features
- Mass change as % and mg
- Rate Controlled Mass Loss
- Evaluation of mass loss
- Residue mass evaluation
HT-DSC – Features
- Glass transition temperature
- Curve subtraction
- Complex peak evaluation
- Multipoint calibration for sample temperature
- Multipoint calibration for change of enthalpy
- Cp calibration for heat flow
- Signal-steered measuring procedures
Applications
Applications example: Coal gasification
Example of Coal Sample being gasified under CO2 Atmosphere. Experimental Conditions: 20 bar N2during heating, 10 bar CO2 during gasification.
Applications example: Coal gasification in CO2 Atmosphere unter 20 bar pressure
This application shows a typical measurement of a Charcoal gasification under Carbon Dioxide atmosphere at a pressure of 20 bar.
Applications example: Comparison of Calcium Oxalate decomposition under normal Atmosphere and Pressure
Comparison of Calcium Oxalate decomposition under Pressure (20 bar, red curve) vs. atmospheric condition (blue curve). A significant pressure dependence of the decomposition steps 1 and 3 can be observed. The decomposition steps 1 and 3 are shifted to higher temperatures at elevated pressure.
