Related Experiment Video
Updated: Jul 19, 2026

Ammonia Synthesis at Low Pressure
Published on: August 23, 2017
Control of self-aldol condensation by pressure manipulation under compressed CO2
Keitaro Matsui1, Hajime Kawanami, Yutaka Ikushima
1Supercritical Fluid Research Center, National Institute of Advanced Industrial Science and Technology, 4-2-1 Nigatake, Miyagino-ku, Sendai, Miyagi 983-8551, Japan.
Abstract:
Under supercritical CO2 conditions, simple adjustment of the pressure was found to successfully control the ratio of aldol to enal product in the self-aldol condensation of aldehyde, in which the enal product was obtained in a maximum selectivity of 94% at the critical pressure of 12MPa, whereas 85% selectivity to the aldol product was achieved at the subcritical region.
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