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Chemical technology --- methaan --- chemische technologie --- chemicaliën
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With its coverage of 701 organic name reactions and reagents, this three-volume set is the largest, most up-to-date major reference work of its kind. It offers students and professional chemists a valuable resource for conducting experiments and performing a broad range of applications, from pharmaceuticals to plastics to pesticides. Each reaction listing is clearly organized into uniform sections that allow readers to quickly gather the information they need to conduct their own experimental procedures. Comprehensive Organic Name Reactions and Reagents offers several features that help readers gather information quickly and conduct their experiments successfully: Chemical abbreviations list the abbreviation, the chemical's full name, its structure, and page references Schematic reaction index offers a quick overview of each reaction Reaction summaries provide basic information about each name reaction Reaction type summaries categorize and organize all related name reactions according to the type of transformation (e.g., oxidation, reduction, synthesis of alkenes, etc.)
Organic chemistry --- H (waterstof) --- methaan --- organische chemie --- polymeren --- kaas --- aminen
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De nieuwste brandstof heet groen gas. Het rijdt goedkoop en duurzaam, want het wordt gemaakt van mest, gft, sloophout, stro, oud frituurvet of vissenkoppen. Er kan ook groene stroom van worden gemaakt en warmte om huizen, kassen of een tropisch zwembad mee te verwarmen. Groen gas maakt menig veehouder opeens tot energieleverancier. Gas maken uit mest en groenafval is goed voor het milieu, maar meestal niet rendabel zonder subsidie. Groen gas is niet te onderscheiden van aardgas. Dat is ook logisch, want beiden zijn op dezelfde manier geproduceerd, door micro-organismen die groenafval eten en als dank brandbaar methaan uitspugen. Alleen is groen gas kakelvers terwijl aardgas fossiel is. Groen gas is een natuurproduct. En mits gemaakt uit afval is het CO2-neutraal. Een flinke dosis geavanceerde procestechniek helpt de natuur het beste resultaat te bereiken. In een hightechmestraffinaderij levert koeienstront niet alleen veel en excellent groen gas, maar ook nog eens biologische kunstmest.
Chemistry --- gassen --- methaan --- mestverwerking --- groene chemie --- chemie --- groene economie --- duurzame ontwikkeling
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This timely book begins with an overview of shale gas reservoir features such as natural fracture systems, multi-fractured horizontal wells, adsorption/desorption of methane, and non-linear flow within the reservoir. Geomechanical modelling, an aspect of importance in ultra-low permeability reservoirs, is also presented in detail. Taking these complex features of shale reservoirs into account, the authors develop a numerical model, which is verified with field data using the history matching technique. Based on this model, the pressure transient and production characteristics of a fractured horizontal well in a shale gas reservoir are analysed with respect to reservoir and fracture properties. Methods for the estimation of shale properties are also detailed. Minifrac tests, rate transient tests (RTA), and type curve matching are used to estimate the initial pressure, permeability, and fracture half-length. Lastly, future technologies such as the technique of injecting CO2 into shale reservoirs are presented. The book will be of interest to industrial practitioners, as well as to academics and graduate students in the field of reservoir engineering.
Thermodynamics --- Mining industry --- Fuels --- methaan --- thermodynamica --- energie (technologie) --- mijnbouw --- fossiele brandstoffen
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Brandstoffen --- Combustibles --- Sciences appliquées --- Toegepaste wetenschappen --- Kivu (Lac) --- Kivu (Meer) --- Methaan --- Méthane --- 662.7
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Natuurkunde --- Physique --- Sciences pures --- Zuivere wetenschappen --- Distikstofoxide --- Methaan --- Méthane --- Oxyde azoteux --- Ozone --- Ozoon --- 535
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biomassa --- methaan --- duurzame ontwikkeling --- Materials sciences --- nieuwe materialen --- materialen (technologie) --- Materials --- Sustainability. --- Environmental aspects. --- Environmental protection. Environmental technology
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Bruce Yoder's thesis outlines his investigation of the dissociative chemisorption of methane (CH4) on a nickel single crystal. In this work Bruce uses a molecular beam and infrared laser techniques to prepare methane in excited rovibrational states. The excited methane molecules are aligned relative to the target nickel surface. Bruce describes the discovery and exploration of a previously unknown steric effect in the dissociation reaction between a vibrationally excited methane molecule and a nickel crystal. From these studies we see that methane molecules are up to twice as reactive when the vibration is aligned parallel rather than perpendicular to the surface. This discovery will help guide the development of detailed predictive models of methane chemisorption, which in turn may lead to better catalysts for the synthesis of several industrially relevant chemicals, including hydrogen fuel from natural gas.
Chemical thermodynamics --- Physicochemistry --- Chemistry --- Enzymology --- Biotechnology --- Computer. Automation --- katalyse --- methaan --- thermodynamica --- biochemie --- chemie --- informatica --- biotechnologie --- fysicochemie --- Ni (nikkel) --- enzymen
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The world's livestock sector is amidst a major transformation, fuelled by high demand for meat and milk, which is likely to double over the next two decades in developing countries. The major driving force behind this demand for livestock products is a combination of population growth, urbanization and income growth, especially in developing countries. The challenge is to enhance animal productivity without adversely affecting the environment. A key to this is reducing methane emissions from ruminants. The major limitation to ruminant production in many tropical regions of Africa, Asia and Latin America, where a large proportion of the global ruminant population is located, is poor nutrition. The productivity of animals is restricted by the low nitrogen and high fibre content of the native grasses and crop residues, which form the basis of the diets in these regions. Animals on these types of diets emit more methane than animals fed better quality temperate forages. These methane emissions represent a loss of digestible energy to the animal (up to 15%) as well as a threat to the environment. Reducing methane production by ruminants could improve their productivity, provided the efficiency of ruminal metabolism is not compromised, and reduce their contribution to greenhouse gas emissions. The challenge is to devise nutritional strategies and identify dietary components, particularly from locally available plant resources, that reduce methane emissions.
Nature protection --- Animal physiology. Animal biophysics --- Air pollution. Air purification --- Environmental protection. Environmental technology --- methaan --- fysiologie --- luchtverontreiniging --- milieubeleid --- zoölogie
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Nature protection --- Animal physiology. Animal biophysics --- Air pollution. Air purification --- Environmental protection. Environmental technology --- methaan --- fysiologie --- luchtverontreiniging --- milieubeleid --- zoölogie
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