| Titre : | Green Hydrogen |
| Auteurs : | Oumhani RAHMOUNI, Auteur ; Rachid Makhloufi, Directeur de thèse |
| Type de document : | Mémoire magistere |
| Editeur : | Biskra [Algérie] : Faculté des Sciences Exactes et des Sciences de la Nature et de la Vie, Université Mohamed Khider, 2024 |
| Format : | 1 vol. (70 p.) / ill., couv. ill. en coul / 30 cm |
| Langues: | Anglais |
| Langues originales: | Anglais |
| Mots-clés: | green hydrogen, electrolysis, solar energy, clean, sustainable, distilled water, dromedary camel urine, urea… |
| Résumé : |
In this study, green hydrogen was produced through simple electrolysis using solar energy, “a clean and sustainable form of hydrogen that represents an innovative solution to current environmental challenges”. Initially, we employed traditional methods to produce hydrogen using distilled water and adding electrolyte such as sodium hydroxide or potassium hydroxide" at different concentrations to discover the best production conditions from each electrolyte", while harnessing solar energy to activate the process. Although this method showed promising results, it consumed significant amounts of materials used. We improved the electrolysis process by designing and testing handmade cells, starting with a plastic model and incorporating steel electrodes. Despite our efforts, rusting posed a major challenge to the performance of the initial model. Therefore, the design was revised to a glass cell with graphite electrodes, leading to remarkable results that significantly outperformed the traditional method. As an alternative natural resource, we explored the use of dromedary camel urine, rich in nitrogen, urea, and ions, making it an exciting and effective option for electrolysis without the need for traditional additives. While productivity was modest initially compared to traditional methods of using electrolytes, enhancing technology performance and increasing dromedary camel urine availability will greatly enhance productivity soon. Through this approach, we aim to enhance innovations in sustainable energy and achieve a significant breakthrough towards a cleaner and more environmentally sustainable future, where green hydrogen plays a crucial role in achieving this goal. |
| Sommaire : |
I.1 Introduction…………………………………………3 I.2 Green hydrogen……………………………………3 I.2.1Definition……………………………………………3 I.2.2Hydrogen (H2) properties……………………………4 I.2.3 History of green hydrogen definitions…………………4 I.3 Production techniques of green hydrogen…………………5 I.3.1A brief history ……………………………5 I.3.2 Techniques…………………………………………5 I.3.2.1 Production technologies reliant on renewable sources…………………………6 a.Water-splitting technology……………………6 a.1.Electrolysis……………………………………………………6 a.1.1. Alkaline water electrolysis…………………………………7 a.1.1.1. Working principle of alkaline water electrolysis…………………8 a.1.1.2. Advantages of Alkaline water electrolysis………………………9 a.1.1.3. Disadvantages ……………………………………………9 a.1.2. Anion exchange membrane (AEM) water electrolysis…………………9 a.1.2.1Working principle of AEM water electrolysis…………………10 a.1.2.2. Advantages of AEM………………………………………………10 a.1.2.3. Disadvantages of AEM…………………………………………10 a.1.3.PEM (Proton Exchange Membrane) water electrolysis…………………11 a.1.3.1. Working principle of PEM water electrolysis……………………11 a.1.3.2. Advantages of PEM………………………………………………12 a.1.3.3. Disadvantages of PEM………………………………………12 a.1.4. Solid oxide water electrolysis…………………12 a.1.4.1. Working principle of solid oxide water electrolysis……………13 a.1.4.2. Advantages of SOEC……………………………………………14 a.1.4.3. Disadvantages of SOEC……………………………………14 a.2.Thermolysis/thermochemical water splitting (TWSC)………………………14 a.3.Photolysis………………………………………………………………………15 b.Biomass technologies…………………………………………………15 b.1.Thermochemical……………………………………………………………16 b.2.biological hydrogen production…………………16 c.hydrogen production using renewable energies……………………………………17 I.4. Conclusion……………………………………………………………………19 CHAPTER II Storage of green hydrogen II.1. Introduction………………………………………………………19 II.2. Storage of hydrogen……………………………………19 II.2.1 Physical Processes……………………………………20 II.2.1.1 Gaseous Storage………………………………………20 II.2.1.2 Liquid Storage…………………………………………22 II.2.1.3 Solid Storage……………………………………………23 II.2.1.4 Storage by Adsorption………………………25 a. Carbons……………………………………………………………25 a.1 Activated Carbon…………………………………26 a.2 Carbon Nanotubes and Other Carbon Nanostructures………………26 a.3 Templated Carbons…………………………………………………27 II.2.2 Chemical Processes………………………………………27 II.2.2.1 Hydride Storage…………………………………………27 II.3. comparison of storage methods……………………………………………………………28 II.4. conclusion………………………………………………………………30 CHAPTER III Production method and discussion of results III.1. Introduction………………………………………………………31 III.2. Devices used.....................31 III.3. the Experience...................33 III.3.1. Experiment description.........33 III.3.2. Part I: Using Electrolytes........................34 A. Products used…………………………………………………………35 B. Preparation of the electrolyte solution.................36 C. Using Potassium Hydroxide KOH Electrolyte in Electrolysis................37 C.1. Observing the reaction................................37 C.2.Results obtained.......................................39 C.3. Analyze the results...................................40 C.3.1. Analyze the results of the volume of hydrogen gas released............40 C.3.1.1. Interpretation.........................40 a. Concentration 5%.............................40 b. Concentration 10% ...........................41 c. Concentration 15% ...........................41 C.3.2. Analyze the results of the volume of oxygen gas released..............42 C.3.2.1. Interpretation.........................4 C.3.3. Analyze the measured potential results........................43 C.3.3.1. Interpretation......................44 a. Concentration 5% .........................44 b. Concentration 10%.........................44 c. Concentration 15%.........................44 C.4.Summary..................................45 D. Using Sodium Hydroxide NaOH Electrolyte in Electrolysis............45 D.1. Observing the reaction..................45 D.2.Results obtained.........................46 D.3. Analyze the results.....................47 D.3.1. Analyze the results of the volume of hydrogen gas released..........47 D.3.1.1. Interpretation.....................47 a. Concentration 5% ........................47 b. Concentration 10%........................48 c. Concentration 15% .......................49 D.3.2. Analyze the results of the volume of oxygen gas released.............50 a.concentration5% ..........................50 b.concentration 10%.........................50 c.concentration 15%.........................50 D.3.3. Analyze the measured potential results............................................ a. At 5% concentration……………………………………………. b. At 10% concentration…………………………………………… c. At 15% concentration…………………………………………… e. Comparison of sodium hydroxide and potassium hydroxide in the production of hydrogen gas...............52 III.3.3. Part II: Using dromedary Camel’s urine.......................54 a. Products used……………………………………………………………55 b. Different analysis of dromedary camel urine.................... b.1. physical properties…………………………………………………… b.2. chemical properties…………………………………………………… b.3 Analyze the sample before and after the reaction using infrared (IR)... b.4 Analyze the sample before and after the reaction using visible uv…… c. Dromedary Camel Urine Electrolysis………………………………………60 c.1. Analyze the results..................61 c.1.1. Analyze the results of the volume of hydrogen gas released............61 c.1.2. Analyze the results of the volume of another gas released.............63 c.1.3. Analyze the measured potential results................................65 III.4.Conclusion..........................67 Appendix…………………………70 |
| Type de document : | Mémoire master |
Disponibilité (1)
| Cote | Support | Localisation | Statut |
|---|---|---|---|
| MCH/642 | Mémoire master | bibliothèque sciences exactes | Consultable |
