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Advances in Biogas Desulfurization

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ISBN: 9783039286607 / 9783039286614 Year: Pages: 106 DOI: 10.3390/books978-3-03928-661-4 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- Biotechnology
Added to DOAB on : 2020-06-09 16:38:57
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Global concern about climate change caused by the exploitation of fossil fuels is encouraging the use of renewable energies. For instance, the European Union aims to be climate neutral by 2050. Biogas is an interesting renewable energy source due to its high calorific value. Today, biogas is mainly used for the production of electricity and heat by a combined heat and power engine. However, before its valorization, biogas needs to be desulfurized (H2S removal) to avoid corrosion and sulfur oxides emissions during its combustion. Biogas can be upgraded (CO2 removal) and used as vehicle fuel or injected into the natural gas grid. In the last 15 years, significant advances have occurred in the development of biological desulfurization processes. In this book with five chapters, the reader can find some of the latest advances in the biogas desulfurization and an overview of the state-of-the-art research. Three of them are research studies and two are reviews concerning the current state of biogas desulfurization technologies, economic analysis of alternatives, and the microbial ecology in biofiltration units. Biogas desulfurization is considered to be essential by many stakeholders (biogas producers, suppliers of biogas upgrading devices, gas traders, researchers, etc.) all around the world.

Multiscale and Innovative Kinetic Approaches in Heterogeneous Catalysis

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ISBN: 9783039211791 9783039211807 Year: Pages: 214 DOI: 10.3390/books978-3-03921-180-7 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Technology (General) --- General and Civil Engineering
Added to DOAB on : 2019-08-28 11:21:27
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Kinetics and reactor modeling for heterogeneous catalytic reactions are prominent tools for investigating and understanding catalyst functionalities at nanoscale and the related rates of complex reaction networks. This book illustrates some examples related to the transformation of simple to more complex feedstocks, including different types of reactor designs, i.e., steady-state, transient plug flow reactors, and TAP reactors for which there is sometimes a strong gap in the operating conditions from ultra-high-vacuum to high-pressure conditions. In conjunction, new methodologies have emerged, giving rise to more robust microkinetics models. As exemplified, they include the kinetics and the dynamics of the reactors and span a large range of length and time scales. The objective of this Special Issue is to provide contributions that can illustrate recent advances and novel methodologies for elucidating the kinetics of heterogeneous reactions and the necessary multiscale approach for optimizing the reactor design. This book is dedicated to postgraduate and scientific researchers, and experts in heterogeneous catalysis. It may also serve as a source of original information for the elaboration of lessons on catalysis for Master students.

Plasma Catalysis

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ISBN: 9783038977506 Year: Pages: 246 DOI: 10.3390/books978-3-03897-751-3 Language: English
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Chemical Engineering --- Technology (General)
Added to DOAB on : 2019-04-05 10:34:31
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Plasma catalysis is gaining increasing interest for various gas conversion applications, such as CO2 conversion into value-added chemicals and fuels, N2 fixation for the synthesis of NH3 or NOx, methane conversion into higher hydrocarbons or oxygenates. It is also widely used for air pollution control (e.g., VOC

Natural Products and Drug Discovery

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ISBN: 9783039287468 / 9783039287475 Year: Pages: 392 DOI: 10.3390/books978-3-03928-747-5 Language: eng
Publisher: MDPI - Multidisciplinary Digital Publishing Institute
Subject: Science (General) --- Biology
Added to DOAB on : 2020-06-09 16:38:57
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Natural products hold a prominent position in the current discovery and development of drugs and have diverse indications for both human and animal health. Plants, in particular, play a leading role as a source of specialized metabolites with medical effects. Other organisms, such as marine and terrestrial animals and microorganisms, produce very important drug candidate molecules. Specialized metabolites from these varied natural sources can be used directly as bioactive compounds or drug precursors. In addition, due to their broad chemical diversity, they can act as drug prototypes and/or be used as pharmacological tools for different targets. Some examples of natural metabolites that have been developed into useful medical drug are cardiotonic digoxin from Digitalis sp., antimalarial artemisinin from Artemisia annua, anti-cancer taxol from Taxus sp., or podophyllotoxin from Podophyllum peltatum, which served as a synthetic model for the anti-cancer etoposide. The study of natural products is still attracting great scientific attention and their current importance, as a valuable lead for drug discovery, is undebatable. I cordially invite authors to contribute original articles, as well as survey articles, that give the readers of Molecules **MOLECULES NEEDS TO BE ITALICIZED** updated and new perspectives on natural products in drug discovery, including but not limited to natural sources, identification and separation of bioactive phytochemicals, standardization, new biological targets, pre-clinical and clinical trials, pharmacological effects/side effects, and bioassays.

Keywords

cytotoxicity-guided --- phenolic derivatives --- Dryopteris fragrans --- chemical derivatization --- immuno-regulation activity --- Imperata cylindrica --- HPLC --- ESI-MS/MS --- growth inhibitory activity --- cancer --- cardamonin --- antinociceptive --- TRPV1 --- glutamate --- opioid --- siphonous green algae --- sulfated coumarins --- Dasycladus vermicularis --- isolation and quantification --- Orobanche s.l. --- Orobanchaceae --- Lamiales --- natural products --- secondary metabolites --- phenylpropanoid glycosides --- phenylethanoid glycosides --- bioactivities of natural products --- chemosystematics --- FSE --- T2DM --- GLUT4 --- Ca2+ --- L6 cell --- marine peptides --- proliferation --- migration --- angiogenesis --- zebrafish --- antioxidant activity --- flavonoids --- isoflavones --- phenolics --- proanthocyanidins --- Trifolium --- Leea indica --- HPLC-ESI-microTOF-Q-MS/MS --- phenolics --- dihydrochalcones --- Humulus lupulus --- prenylated phenolic compounds --- antimicrobial agents --- methicillin-resistant Staphylococcus aureus --- Leishmania mexicana mexicana --- Trypanosoma brucei brucei --- Astragalus boeticus L. --- spectroscopic analysis --- cytotoxic activity --- human colon cancer cell lines --- acetylated astragalosides --- Fabaceae --- aging --- cancer --- cardiovascular disease --- dementia --- diabetes --- inflammation --- oxidative stress --- Harpagophytum procumbens --- devil’s claw --- harpagoside --- spagyric tincture --- antioxidant activity --- Cleistocalyx operculatus --- 2?,4?-dihydroxy-6?-methoxy-3?,5?-dimethylchalcone (DMC) --- pPancreatic cancer --- PANC-1 --- ACE inhibitory peptide --- antihypertensive --- bioactive peptides --- hypertension --- marine resources --- terpenes --- terpenoids --- antimicrobial resistance --- synergy --- Phyllanthus orbicularis --- C-glycoside --- flavonoid --- natural products --- traditional medicine --- Cuba --- Phyllanthus chamacristoides --- chromatography --- mass spectrometry --- NMR --- circular dichroism --- stereochemistry --- Fideloside --- cytokines --- anti-inflammatory activity --- metabolomics --- multivariate data analysis --- molecular network --- Bacopa monnieri --- LC-MS --- diabetic neuropathy --- neuropathic pain --- glucosinolates --- Eruca sativa --- glucoerucin --- H2S --- Kv7 potassium channels --- artemisinin --- Physcomitrella patens --- sesquiterpenoids --- malaria --- biotechnology --- ketamine --- psychosis --- cerebellum --- celastrol --- oxidative stress --- NADPH oxidases --- n/a

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2020 (2)

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