A separation device for removing at least part of a liquid from a mixture which comprises a gas and the liquid in the form of droplets, comprises: a) a housing comprising first, second and third separation sections for separating liquid from the mixture, wherein the second section is arranged below the first section and above the third section, the respective sections are in communication with each other, and the second section comprises a rotating coalescer element; b) tangentially arranged means to introduce the mixture into the first section; c) means to remove liquid from the first section; d) means to remove liquid from the third section; and e) means to remove a gaseous stream, lean in liquid, from the third section. A separation process for removing at least part of a liquid from a mixture comprising the liquid in the form of droplets using the separation device.