Results 31 to 40 of about 2,422 (117)

Ammonia production by microbubbles: A theoretical analysis of achievable energy intensity

Ultrasonics Sonochemistry
The present paper studies the energy intensity of ammonia production by a freely oscillating microbubble placed in an infinite domain of liquid. The initial content of the bubble is a mixture of hydrogen and nitrogen.
Ferenc Kubicsek, Áron Kozák, Tamás Turányi, István Gyula Zsély, Máté Papp, Ahmad Al-Awamleh, Ferenc Hegedûs   +6 more
doaj   +1 more source

Decarbonizing Nitrogen Fertilizer for Agriculture with Nonthermal Plasma Technology

Eng
Synthetic nitrogen fertilizer is the backbone of modern agriculture, helping to feed ~50% of the world’s population. However, the current industrial production, distribution, and use of nitrogen fertilizers are built on an unsustainable foundation of ...
Xiaofei Philip Ye
doaj   +1 more source

Carbon black supported manganese phthalocyanine: Efficient electrocatalyst for nitrogen reduction to ammonia

Engineering Reports
Ammonia (NH3) is regarded as a renewable energy source as well as an important molecule for agricultural applications. The energy‐intensive Haber‐Bosch method produces large amounts of CO2 gas during ammonia production.
Ashadul Adalder, Santosh R. Waghela, Sachin A. Shelukar, Nilmadhab Mukherjee, Swati Das, Uttam Kumar Ghorai   +5 more
doaj   +1 more source

Integrated Solar Production of Fertilisers and Fuels

SolarPACES Conference Proceedings
Solar fertiliser production including the internal utilisation of the side-product oxygen is analysed as one promising example of an innovative process utilising renewable energy resources and addressing the aspect of integrated production – here in the
Martin Roeb, Pablo López Martínez, Nicole Neumann, David Baumstark, Lena Klaas, Dorottya Kriechbaumer, Nathalie Monnerie, Christos Agrafiotis, Christian Sattler   +8 more
doaj   +1 more source

Electrochemical Synthesis of Ammonia: Recent Efforts and Future Outlook

Membranes, 2019
Ammonia is a key chemical produced in huge quantities worldwide. Its primary industrial production is via the Haber-Bosch method; a process requiring high temperatures and pressures, and consuming large amounts of energy. In the past two decades, several
Ioannis Garagounis, Anastasios Vourros, Demetrios Stoukides, Dionisios Dasopoulos, Michael Stoukides   +4 more
doaj   +1 more source

Entropy production minimization in a tubular ammonia synthesis reactor: a mathematical optimization approach with variable geometry and heat flux control

Frontiers in Energy Research
Ammonia is one of the most widely produced chemicals worldwide and is increasingly considered a promising hydrogen carrier for energy storage. We propose a novel thermodynamic optimization strategy for tubular ammonia reactors based on second-law ...
Diego F. Mendoza, Juan Carlos Quintero-Díaz, Signe Kjelstrup   +2 more
doaj   +1 more source

Flexible Green Ammonia Production: Impact of Process Design on the Levelized Cost of Ammonia

Fuels
This study evaluates the economic feasibility of flexible, renewable ammonia production in Italy through a comprehensive sensitivity analysis of the levelized cost of ammonia (LCOA).
Cecilia Pistolesi, Alberto Giaconia, Claudia Bassano, Marcello De Falco   +3 more
doaj   +1 more source

An Efficient Technique for Ammonia Capture in the Haber-Bosch Process Loop-Membrane-Assisted Gas Absorption. [PDF]

Polymers (Basel), 2022
Petukhov AN, Atlaskin AA, Smorodin KA, Kryuchkov SS, Zarubin DM, Atlaskina ME, Petukhova AN, Stepakova AN, Golovacheva AA, Markov AN, Stepanova EA, Vorotyntsev AV, Vorotyntsev IV.   +12 more
europepmc   +1 more source

Chemical Sites as Catalysts for the Transition to a Circular Economy

Swiss Journal of Business
The chemical industry, often referred to as the “industry of industries”, plays a crucial role in the Circular Economy, an economic model aimed at closing material loops and minimizing harmful environmental impacts.
Gerhardt
doaj   +1 more source

Four-electron Reduction and Functionalization of N2 by a Uranium(III) Bridging Nitride

CHIMIA, 2018
N2 is a cheap and widely available but very unreactive molecule. Notably, the only industrial process for the conversion of dinitrogen is the Haber-Bosch process to form ammonia, but under very harsh conditions (high temperature and pressure ...
Marta Falcone, Marinella Mazzanti
doaj   +1 more source