conceptual design

Continuous production of ethyl acetate involves various separation challenges due to multiple azeotropes. In this study, three-phase advanced distillation method is applied through diverse purification scenarios for ternary separation of ethyl acetate system (ethyl acetate/water/ethanol). This highly non-ideal mixture contains four azeotropes and three distillation regions.

It is well known that real solutions of steel joints in framed structures are far away from the conservative assumption that joints behave like pure hinges and/or full rigid connections. Applying semi-rigid philosophy in the design requires consideration of joint characteristics (M- relationship) in the global analysis. The main parameters describing M- curve are the moment resistance Mj.Rd and initial stiffness Sj.ini. In EC3, part 1-8, there are procedures to determinate joint properties, but calculation of them is very troublesome and time consuming.