Adsorption and diffusion of nitrogen and oxygen in a carbon molecular sieve

Diffusion of oxygen, nitrogen and their mixtures in carbon molecular sieve

“…Considerable pure-component diffusivity and equilibrium adsorption data of oxygen and nitrogen on CMS are available (Kawazoe et al, 1974;Knoblauch, 1978;Chihara et al, 1978;Ruthven et al, 1986;Dominguez et al, 1988;La Cava er al., 1989;Ruthven, 1992). All of these studies, however, were limited to pure component and 1-atm pressure.…”

Synthesis of carbon molecular sieves by benzene pyrolysis over microporous carbon materials

“…There are numerous other multi-step synthesis patents that describe pyrolysis of carbonaceous materials onto an activated char [6,8]. All these processes involve the formation of a gate-keeping layer onto the pores of the carbon via the deposition of a pyrolyzable carbonaceous material.…”

“…A review of different research teams involved in CMS synthesis was reported by Juntgen [7]. The separation of gas mixtures using PSA technique are essentially based on the differences in the adsorption equilibrium of each or on the differences in the kinetic adsorption of individual components on an given adsorbent [8,9]. Regarding the zeolites, many gas separations are based on the equilibrium adsorption, while at the CMS, the separation is based either on equilibrium adsorption or on kinetic adsorption.…”

Advances in Pressure Swing Adsorption for Gas Separation

“…Over the years it has been demonstrated that PSA technology can be used in a large variety of applications: hydrogen purification [58][59][60][61][62][63][64][65][66][67][68][69][70][71][72], air separation [57,[73][74][75][76][77][78][79][80], OBOGS (on-board gas generation system) [81], CO 2 removal [82][83][84], noble gases (He, Xe, Ar) purification [85][86][87], CH 4 upgrading [31,34,37,40,42,[88][89][90][91][92][93][94][95][96], n-iso paraffin separation [5,[97][98][99]…”