Since its founding more than one hundred years ago, Parr Instrument Company has been engaged exclusively in the manufacture and sale of chemical reactors, pressure vessels, bomb calorimeters, combustion vessels, and related equipment developed specifically for laboratory use.

Throughout its long history the primary emphasis in all Parr manufacturing has been to provide its customers with quality apparatus, carefully designed for each application and backed by a competent technical support staff with many years of experience in this specialized field.

Parr Stirring Option and Accessories

Standard StirrerGas Entrainment ImpellersBaffles All stirrer options may not be appropriate or available for each reactor size. Additional internal fittings may be required to adapt some stirrer styles to existing reactors in the field. Please contact us for assistance in selecting a stirrer suitable for the intended operating volume and viscosity. The stirrer option shown…

Parr Gas to Oil System

  This system incorporates three tubular reactors that can be configured as required to operate in a strictly parallel fashion or in a cascade arrangement where the products from one reactor are immediately directed to a second reactor. This type of system can support reaction schemes including but not limited to the Fisher- Tropsch process,…

Parr Super Critical Fluids Reactor

General InformationSchematic Example A supercritical fluid is any substance at a temperature and pressure above its critical point. Such fluids can diffuse through solids like a gas and dissolve materials like a liquid. Near the critical point, small changes in pressure or temperature result in large changes in density, allowing many properties of a supercritical…

Parr Horizontal Stirred Reactors

General InformationProduct PhotosSpecification Stirring biomass is not easy to do in a vertical reactor. A line of reactors has been developed by Parr Instrument Company to function horizontally. Horizontal reactors enable researchers to mix bio feed stock and other cellulosic material such as: • straw • corn stover • sugar cane • grasses • plants…

Parr Bio-Fuels and Alternative Fuels Research Systems

Parr Instrument Company manufactures non-stirred vessels for the decomposition of biomass in ammonia and steam. Parr stirred reactors, including a new horizontal reactor technology, have been designed for research processes that include hydrogenation, isomerization, and metathesis reactions. In addition, fully customizable continuous-flow tubular reactor systems have been developed with continuous reactant feed and product handling…

Parr – 5400 Continuous Flow Tubular Reactors

General InfoAccesoriesFluidized Bed ReactorSchematic ExamplesCustom Examples Tubular reactors are always used in a continuous flow mode with reagents flowing in and products being removed. They can be the simplest of all reactor designs. Tubular reactors are often referred to by a variety of names: • Pipe reactors • Packed-bed reactors • Trickle-bed reactors • Bubble-column…

Parr Multiple Reactor System (MRS)

General InformationSpecificationProduct PhotosCustomize 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 principal features of the 5000 System include: • Six reactors with internal…