TLQV - Abstract Presentation_Faculty.pptx

A greener way to grow your greens

1. A Greener Way to Grow Your Greens TLQV P1G3, 2022/2023 Ana Simões nº55609 Eduardo Vasconcelos nº 58014 Inês Martins nº 57381 Marisa Varandas nº 58297 ‹#›

2. ‹#› Ammonia- The Key to a Growing World Global Population growth by region | SIMCenter (wrsc.org) N 2 + 3H 2 → 2NH 3 https://innovation.engie.com/en/sustainable_technologies/detail/green-ammonia-and-green-fertilizer/27129

3. Ammonia Production- Haber-Bosch Process Hydrogen and nitrogen are converted to ammonia using a metal catalyst under high temperatures and pressures. https://www.scienceabc.com/pure-sciences/the-haber-bosch-process-what-is-it-why-is-the-process-so-important.html ‹#›

4. Hydrogen Production- Haber-Bosch Process Production of hydrogen from fossil fuels. Reactions: ‹#› https://hydrogen.mn/about-hydrogen/

5. Haber-Bosch Process Disadvantages Environmental Impact Advantages Food Safety Economic Process ‹#› https://eartheclipse.com/environment/causes-effects-solutions-to-environmental-pollution.html https://www.materialssquare.com/blog/column-ammoinia-fertilizer-to-fuel-cell-en

6. The Greener Process ‹#›

7. The Greener Way - Water Electrolysis 2 H 2 O → 2H 2 + O 2 ‹#› https://www.freepik.com/vectors/electrolysis

8. The Greener Way - Ammonia Production ‹#›

9. The Greener process Disadvantages High energy usage; Needs more research; More expensive. Advantages Carbon free; Renewable; Reduced environmental impact; Subproduction of H2 and O2; Ammonia cycle. ‹#›

10. What’s the difference between the two processes? Harber-Bosch Process Greener Process It has a yield of 30-40% It has a yield of 98% The reaction happens at 400ºC The reaction can happen at 50ºC E-factor= 15,1 E-factor= 4,7 Atom Economy= 0,17 Atom Economy= 1 (O 2 is not considered waste) It’s released 1,6 ton CO 2 / ton NH 3 produced It’s released 0,38-0,53 ton CO 2 / ton NH 3 . ‹#›

11. Green Chemistry Principles ‹#›

12. Bibliografia The Editors of Encyclopaedia Britannica. (2019). Haber-Bosch process | chemistry. In Encyclopædia Britannica . https://www.britannica.com/technology/Haber-Bosch-process You matter. (2020, June 2). What is the Haber Bosch Process and Its Ecological and Human Impact? Youmatter. https://youmatter.world/en/definition/what-haber-bosch-process-ecological-impact/ Wikipedia Contributors. (2019, June 11). Haber process . Wikipedia; Wikimedia Foundation. https://en.wikipedia.org/wiki/Haber_process How do Fertilizers Play an Important Role in Meeting the Emerging Food Production Demand Worldwide? (n.d.). Www.researchdive.com . Retrieved October 17, 2022, from https://www.researchdive.com/blog/fertilizers-enhancing-the-quality-of-plants-and-soil#:~:text=Fertilizers%20are%20nutritious%20food%20for%20plants.%20The%20core Hattori, M., Iijima, S., Nakao, T., Hosono, H., & Hara, M. (2020). Solid solution for catalytic ammonia synthesis from nitrogen and hydrogen gases at 50 °C. Nature Communications, 11(1), 1–8. https://doi.org/10.1038/s41467-020-15868-8 2. Smith, C., Hill, A. K., & Torrente-Murciano, L. (2020). Current and future role of Haber–Bosch ammonia in a carbon-free energy landscape. Energy & Environmental Science, 13(2), 331–344. https://doi.org/10.1039/C9EE02873K ‹#›