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1. |
Record Nr. |
UNINA9910340848903321 |
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Autore |
Bidaud Cécile |
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Titolo |
Géopolitique et environnement : Les leçons de l’expérience malgache / / Hervé Rakoto Ramiarantsoa, Chantal Blanc-Pamard, Florence Pinton |
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Pubbl/distr/stampa |
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Marseille, : IRD Éditions, 2013 |
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ISBN |
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Descrizione fisica |
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1 online resource (296 p.) |
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Altri autori (Persone) |
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Blanc-PamardChantal |
CarrièreStéphanie M |
HervéDominique |
KullChristian A |
MéralPhilippe |
PintonFlorence |
RakotoarijaonaJean Roger |
RamamonjisoaBruno Salomon |
RambinintsaotraSaholy |
RamiarantsoaHervé Rakoto |
RatiarayRamarolanto |
RazafinjaraAimé Lala |
RazanakaSamuel |
RodaryEstienne |
Rakoto RamiarantsoaHervé |
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Soggetti |
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Environmental policy - Madagascar |
Economic development - Madagascar |
Sustainable development - Madagascar |
Forest management - Madagascar |
Natural resources - Madagascar |
Geopolitics - Madagascar |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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La globalisation des politiques environnementales ne produit pas les mêmes effets dans tous les pays du Sud. Dans le même temps persiste la difficulté à penser de façon renouvelée les relations entre nature et société, entre conservation et développement, ce dont témoigne Rio + 20, la conférence des Nations unies pour le développement durable tenue en juin 2012. Dans ce contexte, Madagascar, pays fortement engagé dans une démarche de conservation de son patrimoine forestier, s’avère un cas d’école emblématique. Quels acteurs contrôlent les modalités de production et de mise en œuvre des projets de valorisation de la forêt ? Par quelles institutions ces projets sont-ils financés ? Quelles retombées en termes de lutte contre la pauvreté peut-on en attendre ? À travers un regard géopolitique partagé, les auteurs de cet ouvrage, issus de disciplines et d’horizons divers, interrogent le processus de construction des politiques environnementales et analysent les relations entre science, politique et société, alors que s’est progressivement imposée une vision de plus en plus marchande de la nature. Cette publication s’adresse à tous ceux – chercheurs, étudiants, praticiens du développement et décideurs – qui explorent pistes et retours d’expériences sur les relations entre géopolitique et environnement. |
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2. |
Record Nr. |
UNINA9910576875903321 |
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Autore |
Licursi Domenico |
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Titolo |
Advances in the Catalytic Conversion of Biomass Components to Ester Derivatives: Challenges and Opportunities |
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Pubbl/distr/stampa |
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Basel, : MDPI - Multidisciplinary Digital Publishing Institute, 2022 |
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Descrizione fisica |
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1 online resource (156 p.) |
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Soggetti |
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Chemistry |
Research & information: general |
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Lingua di pubblicazione |
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Formato |
Materiale a stampa |
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Livello bibliografico |
Monografia |
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Sommario/riassunto |
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Biomass has received significant attention as a sustainable feedstock that can replace diminishing fossil fuels in the production of value-added chemicals and energy. Many new catalytic technologies have been developed for the conversion of biomass feedstocks into valuable biofuels and bioproducts. However, many of these still suffer from several disadvantages, such as weak catalytic performance, harsh reaction conditions, a high processing cost, and questionable sustainability, which limit their further applicability/development in the immediate future. In this context, the esterification of carboxylic acids represents a very valuable solution to these problems, requiring mild reaction conditions and being advantageously integrable with many existing processes of biomass conversion. An emblematic example is the acid-catalyzed hydrothermal route for levulinic acid production, already upgraded to that of higher value alkyl levulinates, obtained by esterification or directly by biomass alcoholysis. Many other chemical processes benefit from esterification, such as the synthesis of biodiesel, which includes monoalkyl esters of long-chain fatty acids prepared from renewable vegetable oils and animal fats, or that of cellulose esters, mainly acetates, for textile uses. Even pyrolysis bio-oil should be stabilized by esterification to neutralize the acidity of carboxylic acids and moderate the reactivity of other typical biomass- |
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derived compounds, such as sugars, furans, aldehydes, and phenolics. This Special Issue reports on the recent main advances in the homogeneous/heterogeneous catalytic conversion of model/real biomass components into ester derivatives that are extremely attractive for both the academic and industrial fields. Dr. Domenico Licursi Guest Editor |
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