The processing advantages of Loop Reactors have been demonstrated for years on many applications: short reaction cycle times, low catalyst consumption, high-yields, and reproducible results.

For many applications, pilot trials are unnecessary to establish performance. By using our well-proven evaluation tools, we can design your Loop Reactor to meet your processing needs.

Advantages of HH Loop Reactors include:

  • High Mass Transfer Rates, 5 to 10 times better than a stirred reactor
  • Flexible batch size, 30 to 100 % of nominal Loop Reactor capacity
  • Almost unlimited heat removal capacity
  • No internal coils (easy cleaning)
  • Reduced laminar boundary on catalyst surface, typically allows catalyst reductions by 50 to 75 %
  • Continuous or Batch Operation
  • No moving parts in the reactor headspace
  • Predictable scale-up
  • External gas circulation allows gas removal and shifting of chemical equilibrium

We offer complete Loop Reactor Plants, including systems for Feeding, Loop Reactor, Heat Transfer, Catalyst Addition/Removal/Recycle, Discharging, and the Control System.

  • Complete Loop Reactor Plants
  • Feed
  • Loop Reactor
  • Heat Transfer
  • Catalyst Additon/Removal/Recycle
  • Discharge
  • Filtration
  • Solvent Separation
  • Solvent Recycle
  • Control System

Economical, standardized loop reactors for your gas/liquid reaction processes .

  • Hydrogenations
  • Oxidations
  • Ethoxylations
  • Propoxylations
  • Aminations
  • Chlorinations
  • Carbonylations
  • Nitrilations
  • Reductive Alkylations
  • Phosgenations
  • Emulsion Polymerization
  • Esterifications

Standard and custom equipment for Pharmaceuticals, chemicals, surfactants, edible oils, and other products.

  • Mixing Nozzles
  • Reaction Pumps
  • Gas Loops
  • Complete Loop Reactors
  • Filters
  • Evaporators
  • Dryers
  • Turnkey Plants
  • Spare Parts
  • Commissioning
  • Validation
  • Engineering Studies
  • Pilot Studies
  • Process Consulting

The HH Loop Reactor is suitable for many gas/liquid reactions:

  • Hydrogenations
  • Nitro Reductions (TDA, DCA, DCPA, etc.)
  • Water White Resin Hydrogenations
  • Double and Triple Bond Hydrogenations
  • Ring Saturations
  • Primary, Secondary and Tertiary Amines
  • Oil and Fats Hydrogenations
  • Sugar Hydrogenations
  • Alkylations and Reductive Alkylations
  • Alkylation of Phenolic Compounds
  • Reductive Alkylation of Aromatic Nitro Compounds
  • Ethoxylations
  • Propoxylations
  • Propoxylations with Loop and Stirred Reactors
  • Oxidations
  • Alcohol Oxidations
  • Aldehyde Oxidations
  • Aminations and Reductive Aminations
  • Carbonylations
  • Chlorinations
  • Esterifications
  • Nitrilations
  • Fatty Acids to Nitriles
  • Emulsion Polymerization
  • Esterifications for Oleochemicals (Sorbitane Esters)
  • Phosgenations
  • Other 2 and 3 phase Reactions

HH Loop Reactor Advantages

The HH Loop Reactor is a high performance reactor that is suited for numerous chemical reactions due to the following advantages:

  • High mass transfer rates
  • Low catalyst use
  • High selectivity
  • High yield
  • High conversion rates
  • Reduction in solvent concentration
  • High exothermic heat removal capacity
  • No risk of massive heat exchanger stress cracking due to internal coils, use of plate heat exchangers, limpet coils
  • High safety standards (double block valves, no spark formations in the headspace, no reactor internals, no deadspots)
  • Reliable and predictable Scale-up from factors 1 to 1,000 and more
  • Flexible batch size between 30 and 100 % of nominal capacity
  • Suited for Batch or Continuous Operation
  • Lowest Capital Costs
  • Custom Built Solutions