Spotlight...

Mini-Reactor System- High Pressure Pyrolysis with Catalyst Reactor

CDS has introduced the first and only mini high-pressure pyrolysis reactor system. Scientists studying new biomass feed stock, coal, or polymer reactions need to understand how these materials break down in a reactor at varying conditions with catalysts. The high-pressure pyrolyzer allows them to study both high temperature & pressure on a small scale while passing the pyrolyzed gas through a catalyst bed. This system will offer the scientists and chemical engineer a time and money saving instrument by increasing the understanding of what will happen before undergoing the expense of a scale up to a pilot reactor. And in addition, the background gas can be carrier gas or a reactant gas such as air or oxygen.

The system uses our field proven model 5200 pyrolyzer which has been modified with a back pressure regulator and heated catalyst bed. Samples can be pyrolyzed at elevated pressures (500PSI max) and passed through a catalyst bed of their choice and then collected onto the built-in trap. After pyrolysis of the sample is complete, the analytes are transferred from the trap to the GC at normal operating conditions. Any reactant gas can be used including H2, O2, CH4 and air.

Specifications

• Compatible with all GC and GCMS makes and models.
• Uses a resistively heated element utilizing a coiled platinum filament for variable temperature control. This allows for fast and slow pyrolysis-heating rates that shall be programmable in degrees per millisecond, in degrees per second, and in degrees per minute.
  • Filament Temperature: 1°C increments to 1400°C
  • Heating rates: 0.01°C/minute to 20,000°/second
  • Heating times: 0.01 second to 999.99 minutes
• Interface: 1°C increments to 350°C
• Trap: 1°C increments to 350°C
• System Pressure: To 500 PSI (3400 kPa)
• Reactor Conditions:
  • Temperature: 1°C increments to 800°C (950°C with optional temperature controller)
  • Catalyst tube: 3" x 1/4" 316 Stainless steel (6 mm x 75 mm)
  • User interchangeable with different catalyst types
• Steps per Sample: up to eight temperature profiles with a GC start per step. Allows for multiple thermal desorption or pyrolysis steps on each sample.
• The built-in trap shall allow the user to pyrolyze in a reactant atmosphere, such as air, trap the pyrolyzed components and then desorb them in the GC for analysis. The trap can also be used to do slow evolved gas studies on samples and be used as a thermal desorption chamber.

Trap Temperature: ambient to 350°C
Trap Heating Rate: programmable in 1°C/min increments to 600°C/min

Features and Benefits

The CDS High Pressure 5200 with reactor may be used in any of the following modes:

Pyrolysis direct to GC- Provides standard Py-GC or Py-GC/MS analysis

Pyrolysis w/ trapping - Allows low temperature work for thermal desorption and programmed heating rate pyrolysis

Reactant gas pyrolysis w/ trapping - Permits pyrolysis in reactive atmosphere like air or oxygen

High pressure pyrolysis w/ trapping - Provides for evaluation of process conditions at elevated pressure & reactant gases

Pyrolysis to catalytic reactor w/ trapping - Pyrolysis products pass through a catalytic reactor

High pressure pyrolysis and reactor w/ trapping - Pyrolysis products pass through a catalytic reactor at elevated pressures