This instrument features Humble Instruments performance flow programmable pyrolysis injector the TEPI, multiple automatic cryogenic trapping, Agilent 6890 gas chromatograph with either flame ionization or mass spectrometer detectors; provides data for determining oil and gas compositional kinetics for detailed modeling hydrocarbon generation from petroleum source rocks.
This sophisticated instrument allows effluent from Pyrolysis (or other process effluents) to be trapped in up to 9 separate cryogenically cooled (-200 C) traps at specified times or temperatures. The complete analysis cycle consisting of trapping, desorbing, separation, detection and quantitation is programmable and automated under unattended computer control.
Diagrammatic sketch of the MACT10 system: The effluent from pyrolysis or other process effluents are trapped automatically in up to nine separate cryogenic traps at times or temperatures selected by the user. Subsequent separation, detection, and quantitation is completed automatically via software control.
MACT10 Plus System offers flexibility in sample introduction, processing, and detection techniques. These techniques include open or closed system - isothermal or nonisothermal pyrolysis, qualitative or quantitative analysis, flame ionization, mass spectrometer, or compound-class specific detectors.
Sample Introduction Options
Humble Instruments TEPI featuring uniform temperature profile, in-sample temperature measurement and recording, and flow or pressure programming is featured on the MACT10 Plus System. The Humble TEPI is constructed of either stainless steel or quartz and can be operated in isothermal and nonisothermal modes with 1° C precision. Nonisothermal pyrolysis can be completed with programming rates up to 60° C/minute to final temperatures of 750° C.
The TEPI can be utilized for thermal extraction gas chromatography which is useful for solvent free evaluation of volatile components such as hydrocarbons, pollutants, contaminates, and other unknown compounds in solid, semi-solid or liquid samples.
The MicroScale Sealed Vessel (MSSV) technique can be utilized for analysis of products formed from heating starting material in sealed tubes. Sample is loaded into 40 microliter glass tubes which is then purged and sealed. After isothermal heating the tube is cracked in the injector. The GC fingerprints of the gases and liquids formed resemble natural products.
Detector Options
Gas chromatography is utilized to separate products during trap desorption. The GC can be outfitted with Flame Ionization, Mass Spectrometer, and Sulfur or Nitrogen Chemiluminescence Detectors, singularly or in combination. Furthermore, responses can be quantitatively analyzed using the internal standard methodology for open or closed system pyrolysis.
Kinetics Calculations
Kinetic calculations can be made from these type of data utilizing the Lawrence Livermore National Laboratory's Kinetic2000© program. A narrow profile model is included for polymer decomposition kinetic calculations. The Energies program is available to reduce distribution of activation energies to a lesser number of energies to minimize computer time on 2D basin modeling runs. KMod is used to model and compare compound reaction rates.
MACT10
interfaced to the Agilent GCD system
MACT10
interfaced to the
Agilent 6890 gas chromatograph with FID/MS
detectors
MACT10
interfaced to the
Agilent 6890 gas chromatograph with FID
and MSD 5973 detectors coupled to the HISI pyrolysis
inlet.
The MACT10
operating software makes complicated sequencing completely automatic
and trouble free.
Copyright © 1997-2002 Humble Instruments &
Services, Inc.. All rights reserved.
Revised: