Process Int - Software


In conjunction with our consultancy service, six software packages are available:


i-Heat™ is PIL's "new generation" analysis and optimisation tool for heat recovery systems. It is a state-of-the-art software package for improving the performance of heat recovery systems in the process industries.

What can i-Heat™ do?
  • Target minimum energy consumption
  • Optimize the load of utilities for individual processes
  • Interactive network design
  • Automatic design of new heat exchanger networks
  • Automatic retrofit design of heat exchanger networks with control of the number of modifications
  • Simulate heat exchanger networks using simple models
  • Optimize heat exchanger networks
  • Explore heat exchanger network operability
  • Interface with SITE-int, CDU-int and DIST-int

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Heat-int was PIL's heat exchanger network analysis tool for many years. It has now been superceded by i-Heat™.


SITE-int was PIL's tool for the design, optimisation and integration of site utility systems in the process industries for many years. It has now been superceded by i-Steam™.


CDU-int designs heat-integrated crude oil distillation systems.

What can CDU-int do?
  • Optimise the operating conditions of existing crude oil distillation systems to reduce energy consumption or to increase profit without capital investment.
  • Modify the design of an existing column or the design of the heat exchanger network or both in a controlled way to reduce energy consumption.
  • Modify the design of an existing column, the product flowrates and quality, the design of the heat exchanger network simultaneously to increase profit.
  • Explore different distillation configurations in the design of existing units, such as the introduction of pre-flash or pre- fractionator units.
  • Optimize column pressures.
  • Explore changes to the design of existing heat exchanger networks for increased heat recovery or increased throughput.
  • Optimize the configuration of new crude oil distillation systems.

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DIST-int designs integrated distillation systems.

What can DIST-int do?
  • Minimize energy consumption for a fixed column configuration through pressure optimization and heat integration.
  • Determine the best configuration of energy integrated simple and complex column arrangements.
  • Simultaneously optimize column pressures for heat integrated distillation configurations.
  • Select heat integration matches.
  • Identify heat pumping opportunities.
  • Simultaneously optimize selection of column type, sequence, operating pressure of the columns, heat integration matches and heat pumping opportunities.
  • For sub-ambient distillation systems, simultaneous design of the refrigeration system.
  • Screen refrigeration system designs for sub-ambient distillation systems, including multiple levels, cascade systems and mixed refrigerants.

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CRYO-int simulates, optimizes and synthesizes complex refrigeration systems for low temperature gas processing.

What can CRYO-int do?
  • Target minimum shaft power for a low temperature cooling duties
  • Optimize the number and temperatures of refrigeration levels
  • Target minimum shaft power for cascade refrigeration systems
  • Target minimum shaft power for mixed refrigerant systems
  • Determine the optimum composition for mixed refrigeration systems
  • Simulate and optimize complex refrigeration designs
  • Design and optimization of LNG liquifaction systems

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H2-int improves the performance and design of refinery hydrogen networks.

What can H2-int do?
  • Target minimum hydrogen network consumption on the basis of hydrogen purity
  • Target minimum hydrogen network consumption including complete analysis of the network impurity components
  • Minimize hydrogen demand through maximizing hydrogen re-use
  • Analyze hydrogen purification options
  • Select the optimum choice between multiple sources of hydrogen
  • Explore the trade-offs between hydrogen flowrate and purity
  • Design of hydrogen distribution networks
  • Explore options for hydrogen recycle to hydrogen plants

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These packages provide the latest process integration technology in state-of-the-art software. The software packages have a common style of input to allow users to move between packages with maximum ease. Networks are a common feature of the packages, which are input in an interactive drag-and-drop environment that has a common style between the packages. On-line context sensitive help systems are also a feature common to all packages. Multiple language versions are available.

The software packages are available under license or can be accessed via our consultants.

Learn More from Process Integration

To learn more, click on a specific consultancy services or contact Process Integration.