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STA HP 3

High-pressure thermobalance / High-pressure STA in the bench version

Description

To the point

Linseis presents the new table-top device for simultaneous thermal analysis, the STA HP 3. The STA HP 3 is the result of 25 years of experience in high-pressure thermal analysis. The superior high-speed micro furnace with a maximum temperature of 1200 °C, the high-precision top-loading microbalance and the genuine TG-DSC (Thermobalance and Differential Scanning Calorimeter) open up unimagined new measurement possibilities. The table design, the optional vapour generator and various gas dosing systems offer the greatest possible flexibility.

The world’s only combined high-pressure STA (TG-DSC) with top-loading function. For tests up to 1200 °C and up to 150 bar in reactive or inert atmospheres.

 

Easy user exchangeable TGA or TG-DSC plug-and-play sensors. You have different options for your experiments: perform only TGA experiments with a volume of up to 1 ml or a combined TGA-DSC analysis with a volume of up to 0.12 or 0.3 ml.

The high-pressure STA (TGA and DSC) enables the combined analysis of weight changes and caloric events such as endothermic or exothermic reactions or phase transitions in one measurement and under the same temperature, gas and pressure conditions.

Highly accurate measurement of the sample temperature. The thermocouple is in direct contact with the sample. The configuration of the STA HP 3 eliminates temperature measurement errors due to the distance between the sample and the thermocouple (unlike a magnetic levitation balance).
The high-speed micro-oven enables rapid heating and cooling (up to 300°C/min controlled heating rate and up to 150°C/min cooling rate).

Very small oven volume enables quick gas changes. In addition, the low volume drastically reduces operating costs (gas consumption / energy requirement).

Flexible gas dosing and security design: The gas dosing units can be customised to your requirements. The number of gases is freely selectable (3 gases are standard, more or fewer gases on request). An optional vapour generator and an automatic evacuation and gas safety system for gases such as hydrogen and hydrocarbons are also available.

 

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Specifications

Model STA HP
Temperature range: 170°C up to 1200°C / 1600°C / 1800°C
Vacuum: Up to 10-4 mbar
Max. Pressure: max. 150 bar (Custom solutions available upon request)
Temperature precision: 0.05°C
TG
Resolution: 0.1 μg 0.1 μg
Sample weight: The scales can recognise the weight automatically The scales can recognise the weight automatically
Measuring range: 25 / 2500 mg 35000 mg
DSC
DSC resolution: 0,3 / 0,4 / 1 µW 0,3 / 0,4 / 1 µW
DSC sensors: E /K / S / B / C E /K / S / B / C
Calorimetric sensitivity: ca. 4 / 6 / 17.6 / 22.5 μW ca. 4 / 6 / 17.6 / 22.5 μW
DTA
DTA resolution: 0.03 nV 0.03 nV
Sensitivity: 1.5 μV / mW 1.5 μV / mW
DTA measuring ranges: 250 / 2500 μV 250 / 2500 μV

Equipment for gas

Software

Smarte Lösungen für individuelle Nutzung

The brand new Platinum software significantly improves your workflow as the intuitive data processing requires only minimal parameter input.

AutoEval provides the user with valuable guidance when evaluating standard processes such as glass transitions or melting points. Product identification tool for heat libraries: Provides a material database that enables an automatic identification tool for your tested sample. Device control and/or monitoring via mobile devices gives you control wherever you are.

 

Linseis LFA 500 Software

General functions

  • Software packages are compatible with the latest Windows operating system
  • Set up menu entries
  • All specific measurement parameters (user, laboratory, sample, company, etc.)
  • Optional password and user levels
  • Undo and redo for all steps
  • Unlimited number of heating, cooling, or isothermal segments
  • Multiple language versions such as English, German, French, Spanish, Chinese, Japanese, Russian, etc. (user-selectable)
  • The evaluation software includes a range of functions enabling automated evaluation
  • Multiple smoothing models
  • Complete evaluation history (all steps can be undone)
  • Evaluation and data acquisition can be performed simultaneously
  • Data can be corrected with reference curves and calibration
  • Data evaluation includes: software for peak separation, signal correction and smoothing, first and second derivatives, curve arithmetic, peak analysis, glass point evaluation, drift correction, zoom/single segment display, overlay of multiple curves, labeling and drawing tools, copy to clipboard function, multiple export functions for graphic and data export, and reference-based correction.

Applications

Application: Coal gasification

A well-known application for high-temperature TG-DSC measurements is the investigation of so-called coal gasification or hydrogasification. This process, where carbon is heated in a steam atmosphere, is used in some catalytic processes to, for example, remove carbon monoxide (CO) from exhaust gases and particularly to extract valuable organic compounds from resources such as charcoal or biomass.

The entire process can be described as follows:
Charcoal or the carbon parts of biomass react at higher temperatures (C + H2O → CO + H2) with water vapor to form a mixture of carbon monoxide and hydrogen. This process can be carried out with or without additional oxygen. When an oxygen-containing atmosphere is used, you additionally obtain carbon monoxide according to (C + O2 → CO2, followed by C + CO2 → 2 CO).

The third equation shows, regardless of whether you use oxygen or not, the reaction of carbon monoxide with water to obtain more hydrogen (CO + H2O → CO2 + H2). In the end, you get a mixture of carbon monoxide and hydrogen. These two gases are involved in chemical equilibria, and therefore it is sometimes also interesting to know how much pressure you have in your system, as pressure determines on which side of the equation the equilibrium lies.

Finally, the purpose of coal gasification is to obtain methanol and methane from the two resulting gases carbon monoxide and hydrogen (CO + 2 H2 → CH3OH; CH3OH + H2 → CH4). This means that with this process you can obtain almost all organic compounds (medicines, polymers, oils, waxes, fatty acids, organic acids, etc.) from any type of carbon.

Downloads

STA HP 3 Product brochure PDF
STA HP 3 Product
brochure (PDF)

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