Eta is a chemical eng'g company established 1972 specialising in mass transfer technology (processes such as distillation/deaeration/absorption/stripping) & is able to provide an unrivalled level of experience with 100's of operating units worldwide.
⌖ First Floor, Three Counties House Festival Way, Stoke-On-Trent, United Kingdom
http://www.koch-glitsch.com/process/pages/eta-process-plant.aspx