Journal of membrane science vol 524, pages 1772 15. Journal of membrane science connecting repositories. These combined effects are expected to lead to highly permeable and selective gas separation membranes with only small loadings of the layered. Therefore, incorporating mofs into polymeric matrix to prepare mmms is believed to be a facile way to improve the separation performance of polymeric membranes 1927. In an attempt to solve membrane scaling, positively charged membranes synthesized by introducing cationic materials to the membrane were recently reported 1620. Brinkmanb, fanglin chena,n a department of mechanical engineering, university of south carolina, columbia, sc 29208, usa b department of materials science and engineering, clemson university, clemson, sc 29634, usa. The pd4s and pd thicknesses were measured from the crosssections by optical microscopy keyence vhxandscanningelectronmicroscopyaspexpersonalsem 2000, 20kev beam energy with sulfur energy dispersive spec. Sosa and espinosa developed rigorous optimization approaches in their conceptual models of hybrid distillation and pervaporation 12. Feng journal of membrane science 323 2008 428435 through a thin channel located peripherally near the edge of the membrane and recycled to the feed tank.
Journal of membrane science 329 2009 183192 particles is needed as information input for these calculations. The xrd patterns of the membrane before and after modi. The boundary conditions used in our simulations are given in fig. Schematic diagram of the forward osmosis benchscale laboratory system for sucrose concentration. Due to the reaction, the scavenging material is consumed, and the radius of the reactive core of the osp decreases with time. Compared to thermal and pressuredriven membrane technologies, fo processes realize several bene. The main limitation of membranebased solvent recovery is the inability of most currently available osn membranes to retain very small impurities in the molecular weight range below 200 da. Pdmspvdf composite pervaporation membrane for the separation of dimethyl carbonate from a methanol solution haoli zhou n, lei lv, gongping liu, wanqin jin, weihong xing state key laboratory of materialsoriented chemical engineering, membrane science and technology research center, nanjing tech university, 5 xinmofan road, nanjing 29, pr. The journal of membrane science and research jmsr is an international scientific journal with completely free of charge publication policy, which provides a focal point for academic and industrial chemical, material and polymer engineers and scientists, chemists and membranologists working. A common fouling mechanism is the development of a fouling layer, also known as a cake, on the membrane surface 57. Although lis group used the pvdfsupported silicapdms composite membrane to separate dmc from the methanol solution, membraneswelling effects. To eliminate the effect of the membrane thickness on. Journal of membrane science vol 563, pages 1970, a1a2 1. Journal of membrane science 378 2011 101110 more recently, new processes have been developed for treating and recycling the brine from the ro process.
These onedimensional models do not consider axial development of the. Guide for authors journal of membrane science issn. Hydrogen permeability and chemical stability of nibazr0. Freezepurgeddesorption method for quantitative evaluation of co2solubility in polymeric films. Journal of membrane science provides a focal point for membranologists and a vehicle for publication of significant contributions that advance the science and technology of membrane processes and phenomena. In addition, with zeolite membranes high pressure differences between feed and permeate can be applied. The primary emphasis is on the structure, function and performance of nonbiological. Carbon capture and storage ccs is regarded as one of the most promising technologies for reducing manmade carbon atmospheric emissions, and is projected to provide 14% of the reduction in manmade greenhouse gas ghg emissions by. There are few reports on the use of pdms material to separate dmc from the methanol solution. Abstract high oxygen permeability with optimal selectivity of the membrane is required for advancement in air separation membrane. To prepare evoh polymer solutionsasaprocessingliquid,nmethyle2pyrrolidone nmp was used as the solvent. The primary emphasis is on the structure, function and performance of nonbiological membranes, but papers bridging the gap between nonbiological and biological membranes are also.
Journal of membrane science 392393 2012 8894 89 fig. It is interesting to note that in order to force agreement of. Thesolutiondiffusion model was successfully employed for the prediction of the fo rejection of some inorganic contaminants 9. Journal of membrane science 401402 2012 323332 fig. Review papers are intended to provide archival guidance. Journal of membrane science 493 2015 156166 157 tobramycin, and cephalexin were supplied by dalian meilun biotech co. Journal of membrane science 329 2009 183192 185 of the core it reacts immediately. While the diffusivity is enhanced by increasing temperature, the solubility decreases. Contribution to the understanding of fouling buildup during microfiltration of wines. Journal of membrane science 371 2011 263267 and polished up to 1200grit. Overview of membrane science and technology membrane. Journal of membrane science 476 2015 410420 gradient, and. Hydrogen permeation through a dense membrane generally follows the solutiondiffusion mechanism, where ficks law of diffusion describes the mass transport given by j h 2. The rate of oxygen uptake by these particles involves a diffusional process in addition to reaction kinetics 3438.
The journal of membrane science provides a focal point for academic and industrial chemists, chemical engineers, materials scientists, and membranologists working on membrane systems. The journal of membrane science provides a focal point for academic and industrial chemists, chemical engineers, materials scientists, and. Evoh was chosen due to the growing interest in this polymer in. Unlike hydraulically driven membrane processes, eo exploits the natural phenomenon of osmosis, which occurs when two solutions of differing concentration are placed on two sides of a semipermeable membrane. Several works were previously performed dealing with alkane. Existing commercial fo membranes from hydration technology innovationstm hti are speci. Citescore values are based on citation counts in a given year e. To minimize the boundary layer effect, a relatively high feed circulation rate 1. Journal of membrane science vol 563, pages 1970, a1a2. Schematic of membrane model through the solutiondiffusion model. In the present article, a more detailed total annual cost.
The main limitation of membrane based solvent recovery is the inability of most currently available osn membranes to retain very small impurities in the molecular weight range below 200 da. Hnf of hydranautics have been manufactured via interfacial polymerization ip technique from the viewpoints of low cost and membrane stabilities, which can form the aromatic polyamide pa selective layer. Then we adapted the mean model to include the effects of spatial heterogeneity, but neglect the effects of twodimensional. Sieverts demonstrated that one volume of palladium is able to absorb up to 800 atmospheric volumes of hydrogen at 20 1c. Guide for authors journal of membrane science issn 03767388. The primary emphasis is on the structure, function and performance of nonbiological membranes, but papers bridging the gap between non. The integrals of jw and js with respect to the membrane area over the entire module yield. Journal title publisher publication fee journal of membrane science and. Journal of membrane science 390391 2012 3242 33 involves utilizing the water gas shift wgs reaction see below in tandem with the smr in order to react the co in the reformate mixture and to produce additional h2. Journal of membrane science 352 2010 222230 223 with oil droplets in the size range of 1866nm. Journal title publisher publication fee journal of membrane science and research1 mprl2 open access without processing fee.
1617 227 271 1053 1275 901 1322 1486 179 1318 1427 320 1468 296 1243 1463 810 1533 905 788 1025 660 974 181 1206 1432 1410 768 507 1538 80 1003 265 494 173 1047 867 1251 281