Beschreibung:
<jats:p> Zeolitic membranes have been an active area of research for at least 25 years. Continuous and creative improvements in the materials chemistry of membrane synthesis and in the understanding and predictability of membrane diffusion and separations have been achieved. Activity continues unabated and has increased with the introduction of new compositions such as metal-organic frameworks and other materials to the field. The economics of implementing today's best zeolitic membranes and the achievable improvements in zeolitic membrane systems are approaching commercial attractiveness, but many significant challenges remain as competing membrane technologies are also advanced. </jats:p>