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- #CRYSTALMAKER LEHIGH UNIVERSITY SOFTWARE#
- #CRYSTALMAKER LEHIGH UNIVERSITY MAC#
This challenge is formidable because of the tendency of many microporous materials to crystallize as microcrystalline powders that are difficult to fabricate into a defect-free, thin membrane. The challenge, then, if the target is molecular size–selective separation, is to fabricate zeolitic membranes that provide a selective layer that presents only uniform micropores to the feed stream without the larger defect-derived porosity that often lessens selectivity significantly. Because of the less stringent property requirements in membrane dehydration processes, defective selective layers can still effectively separate water from the less polar components such as alcohols and other water-miscible compounds. There are a number of installations of zeolite-based membrane systems for dehydration separations ( 6), but the mechanism for separation in these cases is based on pervaporation, which utilizes the hydrophilicity of the high framework charge, polar zeolite frameworks employed, and not on size selection of the permeate water over the less polar retentate molecules ( 7). For the purpose of our review, we focus on crystalline zeolitic membranes, which include selective layers composed mostly of aluminosilicate and silicate zeolites, silicoaluminophosphates (SAPOs)/ metalloaluminophosphates (MeAPOs)/ metallosilicoaluminophosphates (MeAPSOs), metal-organic frameworks (MOFs), covalent organic frameworks (COFs), and other compositions demonstrating crystalline, uniform microporosity and where the ultimate separation mechanism is molecular size selection. Membrane systems can also enable separations that are otherwise unfeasible, such as efficient natural gas purification on FPSO (floating production, storage, and offloading) vessels ( 5).Ī particularly intriguing and promising membrane concept that has been extensively studied in industry and the academy is the zeolitic membrane. As a process step replacing conventional energy-intensive unit operations such as thermal distillation and perhaps soon in hybridized commercial membrane reactor systems ( 1, 2), membranes are often-considered components in process intensification studies and implementations ( 3, 4). Help: Go to the Support page to view tutorials, find a crystal structure, participate in user forums, and to get technical help.Membranes are becoming increasingly important components for sustainable growth of process industries throughout the world.
#CRYSTALMAKER LEHIGH UNIVERSITY LICENSE KEY#
Quick tip: If your license key doesn't work, download and install the latest version of the software.
#CRYSTALMAKER LEHIGH UNIVERSITY SOFTWARE#
Be sure to specify the version (Mac or Windows) plus the name of the software program(s) you want as there is a different license key for each one. Please include your Stanford ID number in the request. To get the license keys, please send a request to the Science Library using your email address. License keys: License keys are available to all current students, faculty, and staff at Stanford. Keep up-to-date with the latest software updates. After installing the software, you do not need to be connected to the Internet in order to use it.
#CRYSTALMAKER LEHIGH UNIVERSITY MAC#
Both native Mac and Windows versions are available (but not Linux). Our current license expires February 28, 2023. We have a campus-wide site license for the CrystalMaker package that includes three software programs: CrystalMaker, CrystalDiffract, and SingleCrystal.
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