Zeolite membrane

Silicalite-1 membrane synthesized on the inside of a porous stainless steel tube was used for pervaporation of trichloromethane, 1,1,2-trichloroethane and trichloroethylene from their aqueous solutions. Fluxes of trichloromethane, 1,1,2-trichloroethane and trichloroethylene were observed to be 3.0~3

Desalination of brines produced from oil and gas fields is a potential resource for potable water in the southwestern U.S. and other semi-arid areas. Oilfield brines typically contain high concentrations of Na+ and Cl!, as well as other multivalent cations and anions that can reduce efficacy of reve

So far, large scale industrial separations with inorganic membranes and catalytic membrane reactors in process intensification do not exist. Two prominent developments which are near to a commercialization are discussed: perovskite membranes for oxygen separation and zeolite membranes for molecular

Separation of ions from aqueous solutions was performed by reverse osmosis (RO) on an "-alumina-supported MFI-type zeolite membrane synthesized by in-situ crystallization. For the 0.1 M chloride single-salt solutions, the separation efficiency in terms of ion rejection was found to increase with the

A mordenite membrane was synthesized on a ceramic tubular support by seeded hydrothermal synthesis and tested in the dehydration of a water/ethanol mixture by pervaporation. The influence of synthesis conditions (time and gel composition) on the water/ethanol separation factor and water flux was inv

The present paper reports the in situ h ydrothermal synthesis of a vanadium-containing silicalite-1 zeolite film on a tubular alumina support. In this process, metal-MFI zeolite forms at the surface and within the pores of a porous ceramic alumina support by nucleation and crystallization from a flu