Decarbonizing urea production via municipal solid waste, cement flue gas, and green hydrogen from hydropower-driven electrolysis

Le résumé fourni par la source

Conventional urea production remains a carbon-intensive route for fertilizer supply, while growing municipal solid waste and cement-derived CO 2 emissions create converging pressures on waste management and industrial decarbonization. Integrating these resources with renewable hydrogen offers a route to convert environmental burdens into low-carbon fertilizer production. Here, we evaluate an integrated urea production approach that couples municipal solid waste conversion, cement flue-gas CO 2 capture, and hydropower-driven electrolysis. An Aspen Plus model coupled with techno-economic, environmental, and Monte Carlo analyses shows that 2563 t d -1 of urea can be produced using 962 t d -1 of municipal solid waste, 1394 t d -1 of cement-derived CO 2 , and electrolytic hydrogen, with waste conversion supplying 41.43 t d -1 of H 2 . The pathway consumes 32.6 GJ t -1 of urea, lowers greenhouse gas emissions to 0.3 t CO 2 .eq t -1 , and achieves a levelized cost of 672.87 USD per ton.

Ce résumé expose les affirmations des auteurs. BNTIC ne l’interprète pas comme une validation indépendante des résultats.