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The chemosorption method of removing acid components from gases using an aqueous solution of methyldiethanolamine (MDEA) mixed with an activator, piperazine, is one of the most common in industrial practice. The advantages of the method with this absorbent are in the high efficiency of the cleaning process, low energy costs for the regeneration of the solution, resistance to degradation and low corrosivity.
The amine analyzer with a flow measuring cell based on an IROS Pxx IR Fourier spectrometer makes it possible to implement a rapid method for quantifying MDEA and piperazine in an aqueous solution to control the parameters of the purification process. The analyzer is supplied with a probe for sampling (V = 50 ml), a transport container, an interface for samples injection into a flow-through measuring cell.
The FSpec / AmSpec Amine Analyzer software, with integrated calibration and an interactive “button” interface, provides control over the entire measurement process and spectral data processing, with calculation of the content of the determined amines in the sample, generation of the archive and output of the measurement protocol to print.
Calibration model: determination of MDEA in an aqueous solution of amines
Measuring ranges |
|
Analyzer on the basis of IR Fourier spectrometer IROS P01 with HATR flow cell
|
MDEA |
20 – 60% of the mass. |
|
Piperazine |
2 – 10% of the mass. |
|
Reproducibility (SD) |
|
|
MDEA |
< 0.5% of the mass. |
|
Piperazine |
< 0.3% of the mass. |
|
Duration of the analysis cycle, including sampling operations |
5 – 10 min. |
Short analysis cycle time. No sample preparation required
Determination of carbamates and bicarbonate amines presence in the sample. Monitoring of the absorbent regeneration process
The possibility of using outside the laboratory, measurements in the mode – at-line, on-site
Moisture-proof design of the beam splitter and optical windows from KBr.
Hermetic design of the HATR module
Flow measuring cell
Spectral range |
370 – 7 800 cm-1 |
Spectral resolution |
1.0 cm-1 |
Dimensions |
520 x 370 x 250 mm |
Weight |
28 kg |
Flow measuring cell: fittings with shut-off valves, minimum internal volume – 2 ml, tightness of the sample injection interface
AmSpec – software for controlling the operation of the analyzer, with automatic calculation of the MDEA and piperazine content in an aqueous solution