Membrane Technology Advancements Quiz

Study Notes

Established and Emerging Technologies

The current well-established process in membrane technologies is not specified.
Expansion is planned in the future for membrane technologies, but the specific type is not mentioned.

Membrane Types

Asymmetric membranes are not mentioned in the context of hydrogen separation from gas mixtures.
Isotropic membranes are used in gas separation processes to provide a uniform structure and selectivity.
Microporous membranes have a highly voided structure and randomly distributed pores.
Ion-exchange membranes carry fixed positively or negatively charged ions and are used in ion-exchange processes.

Separation Mechanisms

In pervaporation systems for dehydration of alcohol, the driving force for separation within the membrane is the difference in chemical potential between the two sides of the membrane.

Filtration Processes

The main purpose of Depth Filtration is to remove particles or contaminants from a fluid by passing it through a complex, three-dimensional structure.
The mechanism behind Sieving in filtration processes is the physical blocking of particles larger than the pore size of the membrane.

Membrane Characteristics

Microporous membranes have a low flux and are rarely used.
The main function of a Microporous Membrane is to provide a physical barrier for the separation of particles or molecules based on their size.

Description

Test your knowledge on the advancements in membrane technology including gas separation processes, molecular filtration, and pervaporation systems post-1980. Explore key innovations by companies like Monsanto Prism and Dow in separating gases like H2, N2, and CO2 using membranes.