American Institute of Chemical Engineers- AICHE
American Petroleum Institute - API
Fractionation Research, Inc. - Investigación en diseño y utilización de equipos de destilación
IChE - Institution of Chemical Engineers (UK) - general chemical engineering resources
NPRA - National Petrochemical and Refiners Association - petroleum refining resources
Institutos de investigación y tecnología
The Netherlands agency for energy and the environment
Pinch technology
IEA - Implementing Agreement on process integration