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) stands as a benchmark in performance, offering an unparalleled capability. This system is designed for the simultaneous measurement of mass changes (TG) and caloric reactions (HDSC) under precisely controlled atmospheres and high pressures, reaching up to 50/150 bar, within a broad temperature range from -170°C to 1800°C.
What sets this instrument apart is its unique status as the sole high-pressure TG-DSC system available worldwide. Its exceptional features encompass high precision, remarkable resolution, and long-term drift stability, making it an ideal solution to meet the rigorous demands of high-temperature and high-pressure applications.
The primary applications of High Pressure Thermogravimetry-Differential Scanning Calorimetry include:
- Pyrolysis Studies
- Coal and Biomass Gasification
- Evaluation of Getter Materials for O2, H2, and more
- Research on Metal Reduction and Oxidation processes
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
The system offers a range of gas handling options, including manual, semi-automatic, and Mass Flow Controller (MFC) regulated gas boxes. It also features a steam generator and precise pressure control capabilities.
Additionally, the instrument accommodates a diverse selection of crucibles, such as gold, silver, platinum, aluminum, Al2O3 (alumina), graphite, tungsten, stainless steel (for high-pressure applications), and more. To facilitate various experimental setups, the system incorporates a choice of rotary and turbo-molecular pumps.
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Software
All LINSEIS thermo-analytical instruments are seamlessly integrated with PC control, ensuring compatibility with Microsoft® Windows® operating systems. The software suite comprises three distinct modules: temperature control, data acquisition, and data evaluation, collectively forming a comprehensive system for STA measurements.
The 32-bit software encompasses a wide array of essential features that streamline measurement preparation, execution, and analysis in the realm of simultaneous thermal analysis (STA). Thanks to the expertise of our specialists and application experts, LINSEIS has successfully developed a user-friendly application software, emphasizing clarity and ease of use.
General features:
- Text editing capabilities for program customization.
- Data security measures to safeguard against data loss in the event of a power failure.
- Thermocouple break protection.
- Repetition of measurements with minimal parameter input.
- Evaluation of the current measurement.
- The capacity to compare up to 32 curves for in-depth analysis.
- Storage and export of evaluations.
- Export and import of data in ASCII format.
- Data export to Microsoft Excel for further processing.
- Support for multi-methods analysis, including DSC, TG, TMA, DIL, and more.
- A zoom function for detailed examination of data.
- First and second derivative calculations.
- Programmable gas control.
- A comprehensive statistical evaluation package.
- Free scaling for versatile data representation and analysis.
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
Here’s an example of a coal sample undergoing gasification in a CO2 atmosphere with the following experimental conditions:
- The sample was initially exposed to 20 bar of nitrogen (N2) during the heating phase.
- Subsequently, the gasification process was carried out under a constant pressure of 10 bar of carbon dioxide (CO2).
Applications example: Coal gasification in CO2 Atmosphere unter 20 bar pressure
This application exemplifies a standard measurement of charcoal gasification within a carbon dioxide atmosphere, conducted at a pressure of 20 bar.
Applications example: Comparison of Calcium Oxalate decomposition under normal Atmosphere and Pressure
A comparison of the decomposition of calcium oxalate under different conditions is depicted. The red curve represents the decomposition under a pressure of 20 bar, while the blue curve represents the decomposition under atmospheric conditions. Notably, there is a marked pressure dependence observed in the first and third decomposition steps. These steps exhibit a notable shift to higher temperatures when conducted under elevated pressure.
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