PARR 5000 Series Multiple Reactor System

PARR 5000 Series Multiple Reactor System 

The Parr Series 5000 Multiple Reactor System has been designed to provide an integrated system for running multiple reactions simultaneously and applying the principles of high throughput experimentation to reactions conducted at elevated temperatures and pressures.


The principle features of the new instrument include:
• Six reactors with internal stirring.
• Operating pressures to 3000 psi.
• Operating temperatures to 275 °C.
• Individual temperature control.
• Continuous pressure monitoring.
• Computer control and data logging.
• Manifold systems for rapid turn around and to allow two different input gases.
• Volumes and reactor geometry designed for three phase reactions.
• Flexible Control Software.
• Data logging Software.


Stirred Batch Reaction Vessel

This multiple reaction system has been designed around a vessel with 75mL total volume. This will accommodate between 15 and 40mL of liquid reactants which is close to the minimum volume appropriate for heterogeneous catalytic reactions.

The vessel valves and accessories are designed for maximum operating pressures up to 3000 psi at operating temperatures up to 275 °C. A system with 45 mL vessels is also available on special order.


Stirring System

All six vessels are stirred with a single magnetic stirrer system specifically designed and built for this application. The magnetic drives and fields are focused on the stirrer bars within each vessel. High strength compact magnets are used to provide coupling forces which will operate through the heaters and vessels. The stirring speed of the stir bar is variable from 0-1000 rpm. All vessels will have the same stirring speed during a single run of the apparatus. For manual controlled stirring, a digital tachometer is included. An optional computer controlled stirrer speed and display is also available.



The external heaters surround the vessel walls and bottom for rapid and uniform heating and temperature control. Each vessel is individually temperature controlled. The 250-watt heaters used on each vessel produce heating rates of 6°C per minute.


Operating Modes

The Series 5000 Multiple Reaction System provides an apparatus for running up to six reactions in parallel to build a database for comparing and optimizing operating conditions. The user can design experiments to:

• Run all reactions at the same temperature and pressure while varying catalyst loading or reactant concentrations to optimize these parameters.

• Run all reactors with identical loads varying pressures and a common temperature to study the effect of pressure on reaction rates.

• Run individual reactors with individual loading and temperature and pressure to screen multiple options for activity.

• We expect a comparison of the plots of pressure drop versus time within the reactors running under parallel conditions to be the most useful means of measuring reaction rates and comparing operating conditions. The internal thermocouple also provides a means of detecting temperature disturbances related to exothermic reactions.


Reactor Options

As Parr customers have come to expect with our line of laboratory sealed pressure reactor equipment, these reactors are offered with a number of options which permit the user to configure the system to their reactions and intended operating conditions, these options include:

O-ring or Flat Gasket Seals.
Vessels with O-ring seals are closed by simply tightening the screw cap down hand tight when using O-rings. The maximum operating temperature will depend upon the O-ring material. When equipped with FKM (Viton®) O-rings operating temperatures up to 225 °C are permitted. By substituting FFKM (Kalrez®) O-rings this limit can be raised to 275 °C. Careful consideration of chemical capability must also be given when selecting O- ring materials. PTFE gaskets can be used to temperatures in the 275 °C range and offers virtually universal chemical compatibility. Six cap screws are used to develop the sealing forces on the PTFE gaskets in this design.

Head Configuration.
Each reaction vessel is equipped with an inlet valve, exhaust valve, safety rupture disc, and pressure transducer in addition to an internal thermocouple. The user can choose to have the valves, transducer and rupture disc mounted on a gage block connected directly to the vessel head, or remotely mounted on the back panel and connected to the valve with a quick coupling flexible high pressure hose. The head mounted design makes it possible to remove pressurized vessels from the heater/stirrer assembly or to prefill the vessels in a remote location. The remote panel mounted arrangement connects all of the pressure inlets/outlets to each vessel with a single flexible connection for the greatest ease of handling.
The valves for the gas inlet to each vessel can be either a check or a manual valve. The check valve permits the operator to fill all six vessels simultaneously to the same operating pressure. Manual needle valves permit the operator to fill each vessel to a unique starting pressure.

Materials of Construction.
Type 316 stainless steel is the standard material of construction for both the vessel with its wetted parts and the gage block assemblies exposed to vapors. For investigators working with systems containing strong mineral acids or other more corrosive systems these vessels can be made of any of the Parr standard materials of construction.

Stirrer Configuration.
Our testing has shown that the best stirring option is a loose stirring bar. PTFE coated or glass stirrer bars are available.

Thermocouple Configuration.
Thermocouples are mounted inside the vessel for the best temperature monitoring and control. These thermocouples are protected by stainless steel sheaths which are inserted into a protective thermowell. These thermowells make it easy to install and remove thermocouples from the vessels, plus provide additional chemical and mechanical protection for the thermocouple.

Inlet Gas Manifold.
Two gas inlet valves are provided and are connected to a manifold. The third valve is for venting the lines. The manifold allows for adding a purge gas, usually nitrogen, and a reactant gas, usually hydrogen, to these reactors.


Series 4871 Process Controller

The Series 5000 multiple reaction system is controlled by a dedicated Parr 4871 Process Controller. A detailed description of this type controller is found in the Controller Selection Guide. For this application this controller is set up to provide:

• Temperature monitoring of all six reaction vessels.
• PID Temperature control of each individual reactor.
• Pressure monitoring of all six reaction vessels.
• Data logging of temperature and pressure in each vessel.
• Digital stirrer speed readout and manual control.
• Optional computer controlled-stirrer speed and digital display.

In addition to its standard configuration,
the controller can provide Ramp & Soak programming for individual reaction vessels, digital inputs and outputs for interlocks, alarms or other safety features, and additional analog inputs and outputs to control flow meters or other accessories which might be added at some future date. The users control station is a PC running any current Windows operating system. A simplified graphical users interface has been designed for the control and monitoring of the Series 5000 Multiple Reaction System. The PC is used strictly as the user interface and data logging module. All control actions are generated in the 4871 Process Controller (not the PC).


Series 5000 Reactor Specifications

Shading indicates specifications that change within models
Model Number 5000
Sizes, mL 75
Max. Pressure, psi (bar) 3000 (200)
Max. Temperature °C
with FKM O-Ring 225
with FFKM O-Ring 275
with PTFE Flat Gasket 275
with O-Ring Screw Cap
with Flat Gasket Screw Cap with 6 Cap Screws
Material of Construction T316SS*
Process Controller Model 4871
Analog Inputs
  6 Temperature
  6 Pressure
  1 Actual Stirring Speed
Analog Outputs 1 Stirrer Speed Setpoint
Digital Outputs 6 PID Temperature Control
Temperature Measurement 6 Type J Thermocouple
Heater Style Aluminum Block
Heater Power Watts 250W per Station 1500W Total
Stirrer Motor Type Variable Speed or Computer Controlled
Stirrer Style Magnetic Stirrer Bar
Electrical Supply
Volts 115 or 230
Maximum Load, amps 15/7.5
Vessel Dimensions
Inside Diameter, inches 1.5
Inside Depth, inches 2.75
Weight of Vessel, pounds 3
Reactor Dimensions, inches, pounds
  Width Depth Height Weight
Heater 25.75 9.25 2.875 31
Stirrer 28 9.5 7.625 12
Controller 13 11 15 14
Manifold, Remote 26.5 9.0 15 36
Manifold, Head Mount 26.5 9.0 15 18
Spare Parts Kit 4589B

*Other options available. See Options Section and Ordering Guide.


Series 5000 Ordering Guide

A composite identification number to be used when ordering a reactor can be developed by combining individual symbols from the separate sections.

A 75 mL, PTFE Gasket, T316SS reactor, 115V, Fixed Thermocouple, Head Mounted Valves, Check Valves, 2500 psi transducer range, magnetic bar stirring would be listed as:

No. 5000-T-SS-115-TC-H-AC-2500-MB

Model Gasket Material Voltage Temp Measure Valve Mount Inlet Valve Transducer Stirrer Type
5000 T SS 115 TC H AC 2500 MB
    • No. Size Style
      5000- 75mL 6 Stations
  • A. Base Model
    • -OV O-Ring FKM 225 °C
      -OK O-Ring FFKM 275 °C
      -T PTFE Flat Gasket 275 °C
  • B. Gasket /Maximum temp.
    • -SS T316 Stainless Steel
      -HB Alloy B-2
      -HC Alloy 276
  • C. Materials of Construction
    • -115 115 Volt, 50/60Hz
      -230 230 Volt, 50/60Hz
  • D. Electrical Supply
    • -TW Thermocouple in thermowell
  • E. Temperature Measurement
    • -H On head
      -M On Manifold Panel
  • F. Valve Mounting
    • -AC Check Valve
      -MV Manual Needle Valve
  • G. Inlet Valve
    • -5000 5000 psi/347 bar
      -2500 2500 psi/172 bar
      -1000 1000 psi/65 bar
      -200 200 psi/14 bar
  • H. Transducer Range
    • -MB Magnetic Bar Stirrer
  • I. Stirrer Type
    • -No Symbol No Certification
      -ASME ASME Certification
      -CE European Community Certification/Low Voltage
      -CE/PED European Community Certification/Pressure
      -P Parr Certification
  • J. Certifications

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