Download or read book The Thermal Decomposition of Hydrogen Sulphide written by Michael E. D. Raymont and published by . This book was released on 1974 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Thermal Decomposition of Ethane in the Presence of Hydrogen Sulfide written by Patrick R. McLean and published by . This book was released on 1968 with total page 90 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Thermal decomposition and reformation of hydrogen sulfide written by W. J. Holtslander and published by . This book was released on 1977 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Decomposition of Hydrogen Sulphide written by Charles Francis Pickett and published by . This book was released on 1927 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Decomposition of Hydrogen Sulfide for Small Scale Gas Processing written by Gas Research Institute and published by . This book was released on 1994 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this contract was to evaluate thermal decomposition of H2S utilizing ceramic membrane reactors for H2S disposal in small scale gas processing.
Download or read book Decomposition of Hydrogen Sulfide in an Electrical Discharge written by Larry A. Haas and published by . This book was released on 1973 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Technical Kinetic Studies on the Thermal and Catalytic Decomposition of Hydrogen Sulphide to Hydrogen and Sulphur written by Vassilios Caloidas and published by . This book was released on 1988 with total page 5 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book I The Thermal Decomposition of Acetaldehyde Sensitized by Hydrogen Sulfide written by Walter Lester Roth and published by . This book was released on 1941 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Advanced Catalytic Materials written by Noreña Luis and published by BoD – Books on Demand. This book was released on 2016-02-03 with total page 500 pages. Available in PDF, EPUB and Kindle. Book excerpt: Todays chemical industry processes worldwide largely depend on catalytic reactions and the desirable future evolution of this industry toward more selective products, more environmentally friendly products, more energy-efficient processes, a smaller use of hazardous reagents, and a better use of raw materials also largely involves the development of better catalysts and, specifically, purposely designed catalytic materials. The careful study and development of the new-generation catalysts involve relatively large groups of specialists in universities, research centers, and industries, joining forces from different scientific and technical disciplines. This book has put together recent, state-of-the-art topics on current trends in catalytic materials and consists of 16 chapters.
Download or read book Production of Hydrogen by Superadiabatic Decomposition of Hydrogen Sulfide Final Technical Report for the Period June 1 1999 September 30 2000 written by and published by . This book was released on 2000 with total page 155 pages. Available in PDF, EPUB and Kindle. Book excerpt: The objective of this program is to develop an economical process for hydrogen production, with no additional carbon dioxide emission, through the thermal decomposition of hydrogen sulfide (H2S) in H2S-rich waste streams to high-purity hydrogen and elemental sulfur. The novel feature of the process being developed is the superadiabatic combustion (SAC) of part of the H2S in the waste stream to provide the thermal energy required for the decomposition reaction such that no additional energy is required. The program is divided into two phases. In Phase 1, detailed thermochemical and kinetic modeling of the SAC reactor with H2S-rich fuel gas and air/enriched air feeds is undertaken to evaluate the effects of operating conditions on exit gas products and conversion efficiency, and to identify key process parameters. Preliminary modeling results are used as a basis to conduct a thorough evaluation of SAC process design options, including reactor configuration, operating conditions, and productivity-product separation schemes, with respect to potential product yields, thermal efficiency, capital and operating costs, and reliability, ultimately leading to the preparation of a design package and cost estimate for a bench-scale reactor testing system to be assembled and tested in Phase 2 of the program. A detailed parametric testing plan was also developed for process design optimization and model verification in Phase 2. During Phase 2 of this program, IGT, UIC, and industry advisors UOP and BP Amoco will validate the SAC concept through construction of the bench-scale unit and parametric testing. The computer model developed in Phase 1 will be updated with the experimental data and used in future scale-up efforts. The process design will be refined and the cost estimate updated. Market survey and assessment will continue so that a commercial demonstration project can be identified.
Download or read book Photochemical Decomposition of Hydrogen Sulfide written by Shan Yu and published by . This book was released on 2016 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen sulfide is an extremely toxic gas which is generated from both nature factors and human factors. A proper method for the efficient decomposition of hydrogen is of great importance. Using traditional Claus process, hydrogen sulfide could be decomposed into hydrogen oxide and sulfur. One drawback of this process is that the energy stored in hydrogen sulfide is partially wasted by the formation of hydrogen oxide. In fact, the energy could be utilized for the generation of hydrogen, a potential energy source in future, or other chemical products. Various methods that could possibly make better use of hydrogen sulfide have been studied in recent years, like thermal decomposition, plasma method, electrochemical method, and photochemical method. In particular, there have been high hopes in photochemical method due to the possible direct solar energy conversion into chemical energy. Unlike traditional photocatalytic water splitting, hydrogen sulfide decomposition is more accessible from the thermodynamic point of view. Photocatalytic hydrogen sulfide decomposition could occur in both gas phase and solution phase and various systems have been reported. Besides, the photoelectrochemical decomposition of hydrogen sulfide is also highlighted. In this chapter, we will simply introduce the current situation for photochemical decomposition of hydrogen sulfide.
Download or read book Microwaves in Catalysis written by Satoshi Horikoshi and published by John Wiley & Sons. This book was released on 2015-12-14 with total page 426 pages. Available in PDF, EPUB and Kindle. Book excerpt: A comprehensive overview covering the principles and preparation of catalysts, as well as reactor technology and applications in the field of organic synthesis, energy production, and environmental catalysis. Edited and authored by renowned and experienced scientists, this reference focuses on successful reaction procedures for applications in industry. Topics include catalyst preparation, the treatment of waste water and air, biomass and waste valorisation, hydrogen production, oil refining as well as organic synthesis in the presence of heterogeneous and homogeneous catalysts and continuous-flow reactions. With its practical relevance and successful methodologies, this is a valuable guide for chemists at universities working in the field of catalysis, organic synthesis, pharmaceutical or green chemistry, as well as researchers and engineers in the chemical industry.
Download or read book The Decomposition of Hydrogen Sulphide written by Charles Francis Pickett and published by . This book was released on 1927 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrogen Materials Science and Chemistry of Metal Hydrides written by Michael D. Hampton and published by Springer Science & Business Media. This book was released on 2002-08-31 with total page 495 pages. Available in PDF, EPUB and Kindle. Book excerpt: In September, 1999, with the generous support of NATO, scientists from 18 different nations gathered in Katsiveli, Yalta, Ukraine at the NATO Advanced Research Workshop on Hydrogen Materials Science and Chemistry of Metal Hydrides to present their research and to discuss world energy problems and possible solutions, interactions of hydrogen with materials, the role of hydrogen in materials science, and the chemistry of metal hydrides. High level and highly professional presentations were accompanied by a great deal of discussion and debate of the issues from both fundamental and global perspectives. The result was a large number of new collaborations, new directions, and better understanding of energy and materials issues. The research presented at this meeting can be found in this volume. These papers range from global perspectives such as the new vision of energy and how hydrogen fits into that future, to reviews such as a look at nickel hydride over the last 40 years, to very specific current research. A large number of papers are included on hydrogen and materials. These papers include articles on properties such as superconductivity, diffusion EMF, magnetic properties, physico chemical properties, phase composition, and permeability as a result of the interaction with or incorporation of hydrogen. Also included are papers discussing the use of hydrogen as a processing or alloying agent. The use of hydrogen in the synthesis of battery electrode materials, composite materials, and alloys is also presented.
Download or read book Advances in Sulfur Chemistry written by Eric Block and published by Elsevier. This book was released on 2013-10-22 with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt: Advances in Sulfur Chemistry, Volume 1 provides information pertinent to the four key aspects of sulfur chemistry. This book illustrates the great utility of sulfur in organic synthesis as applied to the synthesis of cyclic compounds, most of which serve as intermediates in the total synthesis of natural products. Organized into five chapters, this volume begins with an overview of desulfurization using Raney nickel. This text then highlights the extensive research done on compounds containing both phosphorus and sulfur attached to the same carbon atom, revealing synergism involving these adjacent second row heteroatoms. Other chapters consider the significant class of thiaheterocycles and include a discussion of the chemistry of disulfur. The final chapter deals with the chemistry of metal complexes of thiols, with focus on the chemistry, structure, and chemical modeling of the nitrogenase enzyme system, whereby dinitrogen is ultimately reduced to ammonia. This book is a valuable resource for graduate students, postdoctoral fellows, industrial chemists, and those teaching specialized topics to graduate students.
Download or read book Organic Sulfur Compounds written by N. Kharasch and published by Elsevier. This book was released on 2013-10-22 with total page 637 pages. Available in PDF, EPUB and Kindle. Book excerpt: Organic Sulfur Compounds, Volume I deals with the chemistry of organic sulfur compounds such as disulfides, polysulfides, olefins, acetylenes, and chloroethylenes. Topics covered range from the inorganic acids of sulfur and the thermodynamics of organic sulfur compounds to some applications of isotopic sulfur and the stereochemistry of disulfides and polysulfides. The mechanism of oxidation of thiols to disulfides is also discussed. Comprised of 40 chapters, this volume first considers the precise structures of elemental sulfur in relation to the reactions of sulfur compounds, followed by an analysis of the inorganic acids of sulfur. The reader is then introduced to the thermodynamics of organic sulfur compounds and the bonding characteristics of the sulfur atom, as well as the infrared spectra of organosulfur compounds. Subsequent chapters focus on the ionic scission of the sulfur-sulfur bond; nucleophilic reactions of thiols with acetylene and chloroethylene; reactions of sulfur with olefins; and the chemistry of isothiocyanates. This book should prove useful to advanced students, practitioners, and research workers in the field of organic chemistry.
Download or read book Hydrogen Sulfide Decomposition to Hydrogen Via a Sulfur Looping Scheme written by Kalyani Vijay Jangam and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Hydrogen sulfide (H2S) is a hazardous pollutant, primarily formed during the processing of crude fossil fuels. Considering the detrimental effects of H2S, it is imperative to decompose it into harmless products. The state-of-the-art Claus process enables elemental sulfur recovery from H2S but converts H-content into low-value product- steam instead of valuable hydrogen (H2) due to its oxidative chemistry route. In this research work, H2S decomposition into H2 and elemental sulfur is explored using a sulfur looping scheme through two sub-steps—sulfidation and regeneration. The commercially viable H2 production from H2S demands superior H2S conversion and a sulfur carrier design exhibiting good reactivity and recyclability at minimal energy consumption. Additionally, understanding H2S decomposition reaction mechanism at the molecular scale as well as system level investigations are crucial for the material optimization and process design. The research work presented in the thesis thus focuses on the sulfur carrier design and process development which are investigated from both the fundamental and commercial aspects to meet these requirements. Chapter 2 focuses on the development of iron sulfide (FeS)-based sulfur carriers wherein the inherent low reactivity of FeS towards H2S decomposition is modified through dopant incorporation. A low concentration (2%) dopant addition is found to cause a dramatic reactivity improvement without much increase in material cost while preserving the phase integrity of FeS. The reaction pathways and electronic structures are analyzed using density functional theory to understand the role of dopants towards reactivity improvement. Additionally, a preliminary strategy is proposed for potential dopant selection through experimental and theoretical techniques. In Chapter 3, an innovative approach with nickel sulfide (Ni3S2)-based sulfur carriers utilizing CO2 for its regeneration is explored to reduce the overall energy footprint of the H2S decomposition scheme. Ni3S2 is impregnated on highly stable supports to tackle its thermal instability and enhance the active material dispersion. The synergistic effect of Ni3S2 and support towards H2S decomposition is unraveled through experiments and density functional theory calculations and general guidelines for effective support selection are established for a high-performance carrier design. Chapter 4 delves into analyzing this Ni3S2-based sulfur looping scheme from thermodynamic and reaction kinetic perspectives. The optimum reaction conditions are determined for fixed bed operation of the scheme. Moreover, system level investigations are performed to establish the advantages of the scheme over the Claus process in terms of energy and exergy efficiencies. Chapter 5 aims to enhance the reactivity of supported Ni3S2-based sulfur carrier through the carrier modification using a low concentration Titanium dopant. The reactivity and recyclability improvements are successfully substantiated using thermogravimetric experiments and solid characterization analysis. Thus, this research work provides new insights aiding the design of a robust and efficient sulfur carrier and demonstrates different innovative strategies for H2S upgradation into H2.
