Membranes Separation of 2-Ethyl Hexyl Amine/1-Decene

1-decene is a valuable product in linear alpha olefins plants that is contaminated with 2-eha (2-ethyl hexyl amine). using organic solvent nanofiltration membranes for this separation is quite challengeable. a membrane has to be a chemically stable in this environment with reasonable and stable separation factor. this paper shows that teflon af 2400 and cellulose acetate produced interesting results in 1-decene/2-eha separation. the separation factor of teflon af 2400 is 3 with a stable permeance of 1.1x10^-2 l/(m^2·h·bar). likewise, cellulose acetate gave 2-eha/1-decene separation factor of 2 with a lower permeance of 3.67x10^-3 l/(m^2·h·bar). a series of hydrophilic membranes were tested but they did not give any separation due to high degree of swelling of 2-eha with these polymers. the large swelling causes the membrane to lose its diffusivity selectivity because of an increase in the polymer's chain mobility.