Results 1 to 10 of about 31,494 (190)

Demagnetizing Ferromagnetic Catalysts to the Sabatier Optimal of Haber–Bosch Process [PDF]

open access: yesJACS Au, 2023
Achieving the Sabatier optimal of a chemical reaction has been the central topic in heterogeneous catalysis for a century. However, this ultimate goal was greatly hindered in previous catalyst design strategies since the active sites indeed changed.
Gaomou Xu, Licheng Sun, Tao Wang
doaj   +4 more sources

Development and Recent Progress on Ammonia Synthesis Catalysts for Haber–Bosch Process [PDF]

open access: yesAdvanced Energy & Sustainability Research, 2021
Due to its essential use as a fertilizer, ammonia synthesis from nitrogen and hydrogen is considered to be one of the most important chemical processes of the last 100 years.
John Humphreys, Rong Lan, Shanwen Tao
doaj   +3 more sources

Operating envelope of Haber-Bosch process design for power-to-ammonia. [PDF]

open access: yesRSC Adv, 2018
The Haber–Bosch process is viable for power-to-ammonia, as it can be operated for a wide range of the operating envelope while maintaining the process variables' operational, hydrogen feed intake and ammonia production flexibilities.
Cheema II, Krewer U.
europepmc   +7 more sources

Beyond Haber-Bosch: The renaissance of the Claude process

open access: yesInternational Journal of Hydrogen Energy, 2021
Ammonia may be one of the energy carriers in the hydrogen economy. Although research has mostly focused on electrochemical ammonia synthesis, this however remains a scientific challenge. In the current article, we discuss the feasibility of single-pass thermochemical ammonia synthesis as an alternative to the high-temperature, high-pressure Haber-Bosch
Kevin H R Rouwenhorst, Leon Lefferts
exaly   +2 more sources

Liquid Sorption-Enhanced Haber-Bosch Process. [PDF]

open access: yesInd Eng Chem Res
The use of a liquid sorbent in a traditional Haber-Bosch process enables significant improvements in energy efficiency and potential cost savings for arguably the most important chemical process on the planet. The approach presented in this report employs an incompressible liquid sorbent that absorbs and releases ammonia (NH3) under specific conditions.
Thornburg NE   +8 more
europepmc   +3 more sources

An Electrochemical Haber-Bosch Process [PDF]

open access: yesJoule, 2020
Summary Ammonia, produced via the Haber-Bosch (HB) process, is globally the leading chemical in energy consumption and carbon dioxide emissions. In ammonia plants, hydrogen is generated by steam-methane reforming (SMR) and water-gas shift (WGS) and, subsequently, is purified for the high-pressure ammonia synthesis.
Vasileios Kyriakou   +2 more
exaly   +2 more sources

Operando probing of the surface chemistry during the Haber-Bosch process. [PDF]

open access: yesNature
AbstractThe large-scale conversion of N2and H2into NH3(refs. 1,2) over Fe and Ru catalysts3for fertilizer production occurs through the Haber–Bosch process, which has been considered the most important scientific invention of the twentieth century4. The active component of the catalyst enabling the conversion was variously considered to be the oxide5 ...
Goodwin CM   +12 more
europepmc   +4 more sources

The Haber–Bosch Process Revisited: On the Real Structure and Stability of “Ammonia Iron” under Working Conditions

open access: yesAngewandte Chemie - International Edition, 2013
Ammonia synthesis is one of the largest processes in chemical industries. It was first operated at BASF one hundred years ago based on the fundamental work of Fritz Haber and process engineering by Carl Bosch. Haber combined feed gas recycling with application of high pressure (P = 200 bar) and a Ruthenium catalyst to achieve sufficiently high ...
Manfred Erwin Schuster   +2 more
exaly   +4 more sources

Production of Ammonia from Low Rank Coal Employing Chemical Looping and Haber-Bosch Process

open access: yesChemical Engineering Transactions, 2017
An integrated production system of ammonia from low rank coal (LRC) is proposed and evaluated in this study. It unites several processes: coal direct chemical looping, nitrogen production, ammonia synthesis, and power generation. To effectively integrate
M. Aziz   +3 more
doaj   +2 more sources

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