▎ 摘　　要

NOVELTY - The method for concentrating a first fluid component in a first fluid mixture comprising the first fluid component at a first concentration and a second fluid component involves distilling the first fluid mixture through a first distillation column to produce a second fluid mixture including the first fluid component at a second concentration, where the second concentration is greater than the first concentration and at least 90 mol.%, and feeding the second fluid mixture through a membrane system comprising two graphene oxide-containing membranes to produce a third fluid mixture. The third fluid mixture includes the first fluid component at a third concentration, greater than the second concentration. USE - Method for concentrating a first fluid component in a first fluid mixture comprising the first fluid component at a first concentration and a second fluid component. ADVANTAGE - The method includes a single distillation process to increase the concentration to the boundary between regions and a membrane separation process to overcome the azeotrope in region. The use of graphene oxide-containing membranes enable the use of smaller distillation columns, saving on both capital expenditures and operating expenditures. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for breaking an azeotrope comprising a first fluid component and a second fluid component, where the first fluid component is propanol and the second fluid component is water, and azeotrope having an azeotropic concentration of the first fluid component, which involves feeding a first fluid mixture through a membrane system comprising two graphene oxide-containing membranes, where the two graphene oxide-containing membranes defining a fluid feed channel, the first fluid mixture including the first fluid component at a first concentration and the second fluid component, where the first concentration is about 0.1-10 mol.% less than the azeotropic concentration, and at least a portion of the first fluid mixture moves from the fluid feed channel through the two graphene oxide-containing membranes to produce a second fluid mixture having a second concentration of the first fluid component greater than the azeotropic concentration.