Results 21 to 30 of about 407,784 (350)
An in situ XAS study of the cobalt rhenium catalyst for ammonia synthesis [PDF]
, 2018 A cobalt rhenium catalyst active for ammonia synthesis at 400 °C and ambient pressure was studied using in situ XAS to elucidate the reducibility and local environment of the two metals during reaction conditions.
Granlund Kirste, Karsten +6 more
core +3 more sources
Techno-Economic Analysis of Power to Ammonia Production [PDF]
E3S Web of ConferencesThis study introduces a novel methodology for conducting a techno-economic analysis of green ammonia production using mathematical models that meticulously parameterize plant units and technical specifications. The approach involves two key steps: first,
Djire All-Fousseni +4 more
doaj +1 more source
Electrochemical Nitrogen Fixation for Green Ammonia: Recent Progress and Challenges
Advanced Science, 2023 Ammonia, a key feedstock used in various industries, has been considered a sustainable fuel and energy storage option. However, NH3 production via the conventional Haber–Bosch process is costly, energy‐intensive, and significantly contributing to a ...
Haneul Jin +5 more
doaj +1 more source
Ammonia Production Technologies
, 2021 Ammonia is produced from nitrogen and hydrogen. In this chapter, the historical development of synthetic ammonia synthesis is discussed, starting with the premise of a Malthusian disaster, after which biological nitrogen fixation and synthetic nitrogen fixation are elaborated upon.
Rouwenhorst, Kevin Hendrik Reindert +4 more
openaire +1 more source
Recent progress towards the electrosynthesis of ammonia from sustainable resources [PDF]
, 2017 Ammonia (NH3) is a key commodity chemical of vital importance for fertilisers. It is made on an industrial scale via the Haber Bosch process, which requires significant infrastructure to be in place such that ammonia is generally made in large ...
Shipman, Michael A., Symes, Mark D.
core +1 more source
Experimental study on nitrification in a submerged aerated biofilter [PDF]
, 2004 The aim of the present work was to evaluate the performance of a semi-pilot scale BAF in order to obtain a highly polished effluent in terms of removal of organic matter, suspended solids and ammonia and to observe the influence of temperature, pH and ...
Chiavola, Agostina +3 more
core +2 more sources
Advanced Science, 2023 Electrochemical nitrate reduction to ammonia powered by renewable electricity is not only a promising alternative to the established energy‐intense and non‐ecofriendly Haber–Bosch reaction for ammonia generation but also a future contributor to the ever ...
Wuyong Zhang +10 more
doaj +1 more source
1921–2021: A Century of Renewable Ammonia Synthesis
Sustainable Chemistry, 2022 Synthetic ammonia, manufactured by the Haber–Bosch process and its variants, is the key to securing global food security. Hydrogen is the most important feedstock for all synthetic ammonia processes.
Kevin H. R. Rouwenhorst +2 more
doaj +1 more source
Ammonia production by intestinal bacteria [PDF]
Gut, 1973 Bacterial growth and the production of ammonia from urea and by deamination of peptone has been examined at various pHs in both conventional static bacterial cultures and in a continuous cultivation system. Growth occurred on primary testing of 93 out of 100 strains of aerobic Gram-negative bacteria at pH 5, and ...
A, Vince +3 more
openaire +2 more sources
Effect of the ammonia concentration on the performance of wetland microbial fuel cells [PDF]
E3S Web of Conferences, 2021 This work explores the effect of the ammonia concentration on the wetland synthesis of microbial fuel cell (MFC) and on the production and the efficiency of sewage purification. Four ammonia concentrations from 1 to 30 mg/L have been selected.
Wang Li +4 more
doaj +1 more source