Private company

Fractionation Research Inc.

American industry cooperative organization founded in 19521

Fractionation Research Inc. (FRI) is an industry cooperative organization that researches the performance of industrial-scale mass transfer devices such as trays, packings and other column internals. Its objective is to facilitate the design of more economical distillation, absorption and stripping systems. Before the formation of FRI, such research was performed on a small scale by universities or private companies.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

1952Founded1

Fractionation Research Inc. (FRI) is an industry cooperative organization that researches the performance of industrial-scale mass transfer devices such as trays, packings and other column internals. Its objective is to facilitate the design of more economical distillation, absorption and stripping systems. Before the formation of FRI, such research was performed on a small scale by universities or private companies. The latter controlled their results as proprietary information, generally inaccessible by competitors.2

The story

FRI is a non-profit organization formed by petroleum, chemical and engineering companies to perform plant-scale research in distillation. It began in 1952, spearheaded by Dr. Karl Hachmuth and T. B. Hudson of Phillips Petroleum Company in Bartlesville, Oklahoma. Hachmuth was noted for his research into the design of mass transfer equipment, He realized that the effort required would be beyond the resources of a single company, and proposed the formation of a cooperative organization to pursue this work. Hudson became the first president of FRI. In 1954, FRI contracted to use a simulation facility at the headquarters of C. F. Braun & Co. in Alhambra, California. Operations continued at Alhambra until 1989, when Braun was acquired by Halliburton, Inc., and merged into its Brown & Root subsidiary (now KBR).

From Wikipedia’s article on Fractionation Research Inc., shared under CC BY-SA 4.0.3

Products and brands

Location

FRI moved its facilities to Oklahoma State University (OSU) at Stillwater, Oklahoma in 1991.[2] FRI initially planned a five-year research program. However, the board of directors has repeatedly voted to extend operations.

Research scope

FRI has tested various types of fractionation trays and packings (both generic and proprietary designs), with the objective of developing correlations for predicting tray efficiencies and pressure drops. This information is needed to design fractionators, absorbers and strippers. It has also tested performance of other column internals such as liquid distributors. It periodically reports its findings to the member companies.

The OSU library maintains an unrestricted collection of FRI progress reports, plant tests, topical reports, consultants’ reports and annual reports that were issued during the period 1954 – 1970.

FRI has also produced a number of unrestricted instructional films and videos, which are listed on its home page. These are available to non-members.

Read the full text

Examples of FRI Research Programs:

- Ultimate capacity of a distillation device

-Liquid & vapor maldistribution studies in packed columns

- Bed length effect on packing performance

- Structured packing performance with high pressure distillation systems

- Valve tray efficiency enhancement with push valves

- Foaming studies

- Tray performance at liquid rate applications

- Tray vibration and mitigation

- Kettle reboiler hydraulic study

- Heat transfer study of condenser with high performance tubes

- Performance measurement of proprietary devices

- Dividing wall column hydraulic and separation performance

- Multi-pass tray performance

- Entrainment data of large size structured packings and grid with a spray nozzle

- Effect of structured packing perforation and texture on performance

- Effects of Liquid Viscosity on Point Efficiency

Examples of FRI Modeling:

FRI's tray and packing performance models are primarily derived from over 36,000 experimental distillation data points covering seven types of trays and packings. These models serve as reliable, accurate, unbiased, and independent tools for predicting both hydraulic and mass transfer performance.

From Wikipedia’s article on Fractionation Research Inc., shared under CC BY-SA 4.0.3

Timeline

  1. 1952Founded Founded1

Sources

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