2022 Teens Dream – Sustainable energy by carbon dioxide disposal

2022 Teens Dream – Sustainable energy by carbon dioxide disposal






Teen's Name
Hend Adel Ahmed Elboraey
Teen's Grade
11th
Teen's Dream

Have you ever heard about producing clean energy through the disposal of factories’ pollutants? Choosing the problem is based on priorities that vary by community, including the magnitude and severity of it and community’s ability to address it.
For instance, I’ve been working since 2020 to produce green hydrogen by the disposal of carbon dioxide emissions in an ecofriendly. The world has more than 7000 aluminum factories, each one produces 268000 ton^3 aluminum annually. For each ton of aluminum production, about 11.7 tons of CO2 is produced that shortens the life expectancy of Egyptians by two years as Egypt has more than 30 factories. Furthermore, after a lot of searching depending on the most recent prior solutions from google scholar, visiting Saad Mittal Factory in Tanta to evaluate the produced wastes and CO2 , it’s istimated that aluminum dross which is a toxic industrial waste is generated in large quantities in aluminum plants that’s used for regenerating aluminum but this process consumes large amount of energy as the melting point for aluminum is 900 degrees. In addition, if it’s unwashed then the efficiency of aluminum will be 70% and if it’s washed or not the process will generate H2SO4 that may cause third degree burns and blindness on contact.                                                                                                                                                                                                                                       The generation of green hydrogen that produces energy as twice the fosssil fuels without harming the environment with any various gas emissions can be produced by also the disposal of large amounts of carbon dioxide and aluminum dross in a closed system.                                                      The project depends on modifying the structure of the factory’s chimney to allow the occurrence of the reactions. The solution depends on two systems. The first is to get rid of CO2, and the second is to get rid of Al dross. The products of the first system will be the reactants for the second system. The factory will only buy CaO as 1Kg costs 0.5$ and NaOH as 200 g costs1$ . As for the rest of the reactants, they are from the factory’s wastes. The first system consists of 2 processes, the first one to produce Ca(OH)2 which will be used in the second process to get rid of CO2 according to CaO + H2O = Ca(OH)2 , the produced Ca(OH)2 will react with CO2 to produce H2O and CaCO3 (that is used in construction) according to CO2 + Ca(OH)2 = H2O + CaCO3. Then the solution of H2O and CaCO3 will go through a tube for the filtration process , to separate water from calcium carbonate . In the second system, According to 2Al+2NaOH +6H2O = 2Na[Al(OH)4 ]+3H2, water will be added (from the first reaction) to react with Al dross in the presence of NaOH (catalyst) to produce green hydrogen and Na[Al(OH)4] . Green Hydrogen would be used in energy production, as it’s a kind of renewable energy that produces energy as twice as fossil fuels without harming the environment. Na[Al(OH)4] is used for many purposes like water purification.                                                                                                                                                                                                To sum up, the project deliverables are: 1- Reduction of CO2 and aluminum dross 2-Production of green Hydrogen that produces energy as twice as fossil fuels without harming the environment. 3 -Production of CaCO3 that is used in construction ,medicinal industries like manufacture antacids, tablets which are made of base materials. 4-Production of Na[Al(OH)4] that’s used for water purification . 5 -The first system can be applied for all kind of factories for the disposal of CO2 and production of H2O and CaCO3

 

The UN SDG my dream most relates to