Download or read book Carbon Dioxide Adsorption on a 5a Zeolite Designed for Co2 Removal in Spacecraft Cabins written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-08-16 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: Carbon dioxide adsorption data were obtained for a 5A zeolite manufactured by AlliedSignal Inc. (Des Plaines, Illinois). The material is planned for use in the Carbon Dioxide Removal Assembly (CDRA) for U.S. elements of the International Space Station. The family of adsorption isotherms covers a temperature range of O to 250 C, and a pressure range of 0.001 to 800 torr. Coefficients of the Toth equation are fit to the data. Isosteric heats of adsorption are derived from the equilibrium loading data. Mulloth, Lila M. and Finn, John E. Ames Research Center NASA/TM-1998-208752, Rept-A9800125, NAS 1.15:208752 ...
Download or read book Carbon Dioxide Adsorption on a 5A Zeolite Designed for CO2 Removal in Spacecraft Cabins written by and published by . This book was released on 1998 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book CARBON DIOXIDE ADSORTION ON A 5A ZEOLITE DESIGNED FOR C02 REMOVAL IN SPACECRAFT CABINS NASA TM 1998 208752 JAN 20 1999 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 27th European Symposium on Computer Aided Process Engineering written by and published by Elsevier. This book was released on 2017-09-21 with total page 3064 pages. Available in PDF, EPUB and Kindle. Book excerpt: 27th European Symposium on Computer Aided Process Engineering, Volume 40 contains the papers presented at the 27th European Society of Computer-Aided Process Engineering (ESCAPE) event held in Barcelona, October 1-5, 2017. It is a valuable resource for chemical engineers, chemical process engineers, researchers in industry and academia, students, and consultants for chemical industries. - Presents findings and discussions from the 27th European Society of Computer-Aided Process Engineering (ESCAPE) event
Download or read book Pre combustion Carbon Dioxide Capture Materials written by Qiang Wang and published by Royal Society of Chemistry. This book was released on 2018-08-21 with total page 362 pages. Available in PDF, EPUB and Kindle. Book excerpt: Using inorganic solid adsorbents/sorbents is a promising approach for carbon dioxide (CO2) capture and is attracting intense attention from both academic and industrial fields. Pre-combustion Carbon Dioxide Capture Materials presents a range of the different inorganic materials that can be used as pre-combustion CO2 adsorbents/sorbents with specific emphasis on their design, synthesis, characterization, performance, and mechanism. Dedicated chapters cover layered double hydroxide (LDH) derived adsorbents, MgO-based adsorbents, CaO-based sorbents and alkali ceramics based sorbents. Edited and written by world-renowned scientists in each class of CO2 capture material, this book will provide a comprehensive introduction for advanced undergraduates, postgraduates and researchers wishing to learn about the topic.
Download or read book Advanced Nanomaterials for Aerospace Applications written by Carlos R. Cabrera and published by CRC Press. This book was released on 2014-07-15 with total page 397 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advanced Nanomaterials for Aerospace Applications has been developed for a community interested in space science and nanotechnology. Scientists and engineers from several NASA field centers and the Jet Propulsion Laboratory, University of Puerto Rico, The Pennsylvania State University, and INFN-Laboratori Nazionali di Frascati, Italy, have joined efforts to discuss the applications of nanomaterials in sensors, atmosphere revitalization in habitable space platforms, life support systems, regenerative fuel cells, lithium-ion batteries, robust lightweight materials, nanoelectronics, and electromagnetic shielding. The book concludes with chapters that discuss bringing NASA-relevant nanotechnology into the classroom and the future directions in nanotechnology research and development at NASA.
Download or read book Development of Design Information for Molecular sieve Type Regenerative CO2 removal Systems written by R. M. Wright and published by . This book was released on 1973 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advances in Carbon Capture written by Mohammad Reza Rahimpour and published by Woodhead Publishing. This book was released on 2020-08-04 with total page 574 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Carbon Capture reviews major implementations of CO2 capture, including absorption, adsorption, permeation and biological techniques. For each approach, key benefits and drawbacks of separation methods and technologies, perspectives on CO2 reuse and conversion, and pathways for future CO2 capture research are explored in depth. The work presents a comprehensive comparison of capture technologies. In addition, the alternatives for CO2 separation from various feeds are investigated based on process economics, flexibility, industrial aspects, purification level and environmental viewpoints. - Explores key CO2 separation and compare technologies in terms of provable advantages and limitations - Analyzes all critical CO2 capture methods in tandem with related technologies - Introduces a panorama of various applications of CO2 capture
Download or read book Adsorption through Advanced Nanoscale Materials written by Chandrabhan Verma and published by Elsevier. This book was released on 2023-08-14 with total page 729 pages. Available in PDF, EPUB and Kindle. Book excerpt: Adsorption through Advanced Nanoscale Materials: Applications in Environmental Remediation brings together the latest developments in the utilization of advanced nanoadsorbents in wastewater treatment, pollution control, removal and remediation, gas separation and other environmental applications. The book begins by providing an overview of absorption, adsorbents and nanoadsorbents, introducing properties, classification, synthesis, characterization, enhancement of adsorption capabilities, principles and advantages and disadvantages of nanoadsorbents. Other sections cover the preparation of advanced nanoadsorbents based on specific materials for wastewater treatment, including adsorbents incorporating carbon nanotubes, graphene and graphene oxide, carbon dots and fullerene, polymer nanocomposites, metal oxides, nanoclay, nanofillers, and filtration membranes. Final sections examine the role of nanoadsorbents in broader environmental applications, including areas such as pollution control and removal and gas separation. Finally, other important considerations are studied, including toxicity and health impact, ecotoxicological effects, commercialization and economic issues, challenges and research gaps, trends, and future opportunities. Provides in-depth coverage of nanoadsorbents for a range of targeted environmental applications Covers, in detail, fundamentals such as synthesis methods, characterization and inhibition mechanisms Addresses key areas such as toxicity, health impact, research gaps, trends and commercialization
Download or read book Heterogeneous Catalytic Materials written by Guido Busca and published by Newnes. This book was released on 2014-05-23 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt: Heterogeneous Catalytic Materials discusses experimental methods and the latest developments in three areas of research: heterogeneous catalysis; surface chemistry; and the chemistry of catalysts. Catalytic materials are those solids that allow the chemical reaction to occur efficiently and cost-effectively. This book provides you with all necessary information to synthesize, characterize, and relate the properties of a catalyst to its behavior, enabling you to select the appropriate catalyst for the process and reactor system. Oxides (used both as catalysts and as supports for catalysts), mixed and complex oxides and salts, halides, sulfides, carbides, and unsupported and supported metals are all considered. The book encompasses applications in industrial chemistry, refinery, petrochemistry, biomass conversion, energy production, and environmental protection technologies. - Provides a systematic and clear approach of the synthesis, solid state chemistry and surface chemistry of all solid state catalysts - Covers widely used instrumental techniques for catalyst characterization, such as x-ray photoelectron spectroscopy, scanning electron microscopy, and more - Includes characterization methods and lists all catalytic behavior of the solid state catalysts - Discusses new developments in nanocatalysts and their advantages over conventional catalysts
Download or read book Nanomaterials for Carbon Dioxide Capture and Conversion Technologies written by Shaukat Ali Mazari and published by Elsevier. This book was released on 2022-10-04 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nanomaterials for Carbon Dioxide Capture and Conversion Technologies focuses on the applications of nanomaterials for CO2 capture and conversion. The book highlights the need for CO2 mitigation, followed by the basic principles for CO2 capture and conversion, using different nanomaterials, while also discussing and highlighting challenges and perspectives. Abundant CO2 emissions from industries and the transportation sector are a threat to the planet due to overwhelming concerns regarding CO2-induced climate change. Nanomaterials are being widely investigated for CO2 capture and conversion processes. Nano absorbents, adsorbents and nanomembranes for CO2 capture, nano catalysts for catalytic CO2 conversion, and chemical fixation of CO2 are some of the broader applications of nanomaterials for CO2 mitigation. - Helps readers understand the basic mechanisms and theories behind CO2 capture and conversion using nanomaterials - Provides information on the range of nanomaterials types used in CO2 capture and storage systems - Assesses the major challenges for integrating nanotechnology into carbon dioxide capture and storage systems at an industrial scale
Download or read book Equilibrium and Mass Transfer Behaviour of CO2 Adsorption on Zeolites Carbon Molecular Sieve and Activated Carbons written by Md Ariful Islam Sarker and published by . This book was released on 2013 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Spaceflight Life Support and Biospherics written by P. Eckart and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 453 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spaceflight Life Support and Biospherics is the introduction to space life support systems and artificial ecosystems that has so far been lacking. It is a source of information for everyone involved in the life support system design and development process - engineers, scientists, and students - as well as all those who are simply interested in this existing discipline. The structure of this book is such that it gives step-by-step answers to the basic questions concerning life support systems on any scale - from small microbial systems to the Earth's biosphere: Why life support system development and biosphere research? How does our natural life support system, the biosphere, work? What are the environmental conditions for life support systems in space? What are the fundamental terms and requirements of life support? Which physicochemical life support subsystems currently exist? Which are the potential bioregenerative life support technologies of the future? What are life support systems of future planetary habitats going to look like? What are the experiences of the largest artificial ecosystem - Biosphere 2? What are the potential terrestrial benefits of life support development? £/LIST£
Download or read book The Adsorption of CO2 H2O N2 on 5A Zeolite and Silica Gel in a Packed Column in One and Two Dimensional Flows written by Habib Mohamadinejad and published by . This book was released on 1999 with total page 894 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technology for the Stars Extending Our Reach written by and published by . This book was released on 1996 with total page 260 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Thermodynamic Study of Nitrogen and Carbon Dioxide Adsorption on Alkali exchanged Chabazite Zeolites written by Firas N. Ridha and published by . This book was released on 2009 with total page 334 pages. Available in PDF, EPUB and Kindle. Book excerpt: Zeolites have long been considered as excellent candidate materials for gas separation and purification. Most of the worldwide industrial adsorption applications of molecular sieve zeolites utilize zeolites X, A and Y. Chabazite zeolite however, has pore dimensions between those for zeolites X, A and Y and hence has promising separation features for specific application but has not been utilized in any major industrial separation or purification applications to date. Some early work on alkali-exchanged chabazites revealed a diminished porosity and surface area due to pore blockage. This initial work was based on limited experimental data and preliminary analytical techniques and analysis. As a result, this initial pessimistic assessment of the merits of chabazite zeolite has led to a loss of interest in this material for adsorption applications.In this study, a pure phase chabazite was synthesized and ion-exchanged to produce potassium chabazite (KCHA), sodium chabazite (NaCHA) and lithium chabazite (LiCHA). Attempts were successful to produce a fully exchanged potassium chabazite, which is a unique product that has not been reported in the literature to date. The adsorption of nitrogen and carbon dioxide was studied since these gases are component of flue gas and the application to which chabazites were to be directed was CO2 capture form flue gas. Adsorption equilibrium isotherms for CO2 and N2 were measured at pressures up to 101.3 kPa and temperatures of 273, 303 and 333 K. More importantly, this work focused on determining fundamental properties of adsorbate-adsorbent interactions which require low pressure measurements hence low pressure isotherms, down to 0.001 kPa, were measured. These data provide valuable information to study the adsorption behavior in the Henry's law region.The results showed that porosity characterization of KCHA using the conventional approach of nitrogen at 77 K reveals a surface area of only 17.82 m2 g-1 and a diminished pore volume (by density functional calculation) of 0.005 cm3 g-1, compared to 584.4 m2 g-1 and 0.214 cm3 g-1 using carbon dioxide at 273 K, respectively, calculated from the revised Tóth model and CO2 isotherm data at 273K. These findings strongly suggested that KCHA is a highly porous adsorbent, in spite of the large size of K+ ions which block access of the N2 molecules to the pore space. It is concluded that traditional methods of characterization are not suitable in the case of pore blockage leading to incorrect interpretation of adsorbent properties.It was initially hypothesized that carbon dioxide molecules enjoy large freedom within the zeolite pores, however, virial plots developed from equilibrium isotherms showed anomalous behavior for carbon dioxide adsorption at 273 K on NaCHA and KCHA at loadings lower than 1.5 gmole kg-1, which correspond to pressure of about 0.15 kPa. This suggested that carbon dioxide molecules were not at true equilibrium condition, but rather were subject to steric hindrance due to partial pore blockage. Adsorbed phase densities calculated from van der Waals constants confirmed the pore blockage phenomenon on KCHA, however, it also reveals a slight blockage against nitrogen molecules on NaCHA. On the synthesized chabazites, carbon dioxide affinities and heats of adsorption were considerably higher than those for nitrogen for which their adsorption equilibria differ significantly due to screening against nitrogen molecules in KCHA and partially in NaCHA. Carbon dioxide entropy measurement revealed a concave trend, demonstrating an appreciable loss of degrees of freedom within increase in loading.Carbon dioxide desorption isotherms showed low pressure hysteresis at 273 K with residuals of 0.37 and 0.57 molecule cavity-1 on NaCHA and KCHA, respectively, at pressures lower than 0.05 kPa. This outcome confirmed the pore blockage occurrence suggesting a low pressure encapsulation. The combined use of the statistical theory of the radial distribution function (rdf) and the theory of the perfect 3D lattice gas to describe the encapsulation process underestimated the number of accommodated molecules compared to the experimental results. The individual implementation of Lennard-Jones and quadrupolar potentials to describe the adsorbate-adsorbate and adsorbate-host interactions, respectively, affected the performance of the models.
Download or read book Enhanced Molecular Sieve Co2 Removal Evaluation written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-06 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this research is to quantitatively characterize the performance of two major types of molecular sieves for two-bed regenerative carbon dioxide removal at the conditions compatible with both a spacesuit and station application. One sorbent is a zeolite-based molecular sieve that has been substantially improved over the materials used in Skylab. The second sorbent is a recently developed carbon-based molecular sieve. Both molecular sieves offer the potential of high payoff for future manned missions by reducing system complexity, weight (including consumables), and power consumption in comparison with competing concepts. The research reported here provides the technical data required to improve CO2 removal systems for regenerative life support systems for future IVA and EVA missions. Rose, Susan and ElSherif, Dina and MacKnight, Allen Unspecified Center...
