Industrial hydrogenation is often performed by using slurry catalyst reaction systems in large stirred-tank reactors. These systems are inherently problematic in a number of areas, including industrial hygiene, safety, environmental, waste production, operability and productivity. The key objective of this program was to develop and demonstrate a practical MLR pilot system using realistic reaction chemistry and to confirm that high reaction rates, long catalyst life and high selectivity can be achieved with a suitable monolith catalyst. The pilot plant design is flexible enough to allow testing of a variety of specialty hydrogenation chemistries and at the same time is highly instrumented to allow commercial scaleup design information to be obtained from customer trials.