scholarly journals Control structure design for the ammonia synthesis process

2008 ◽  
Vol 32 (12) ◽  
pp. 2920-2932 ◽  
Author(s):  
Antonio Araújo ◽  
Sigurd Skogestad
Keyword(s):  
Control Structure ◽  
Ammonia Synthesis ◽  
Structure Design ◽  
Synthesis Process

Electron Donation by Low-Crystalline Ba-La-Ce Oxygen-Deficient Composite Oxide Accumulating on Ru Nanoparticles for Ammonia Synthesis under Mild Conditions

2019 ◽  
Author(s):  
Katsutoshi Sato ◽  
Shin-ichiro Miyahara ◽  
Yuta Ogura ◽  
Kotoko Tsujimaru ◽  
Yuichiro Wada ◽  
...  
Keyword(s):  
Ammonia Synthesis ◽  
Bond Cleavage ◽  
Synthesis Process ◽  
Strong Electron ◽  
Mild Conditions ◽  
Ru Nanoparticles ◽  
Rate Determining Step ◽  
Highly Active ◽  
Composite Oxides ◽  
Low Crystalline

<p>To mitigate global problems related to energy and global warming, it is helpful to develop an ammonia synthesis process using catalysts that are highly active under mild conditions. Here we show that the ammonia synthesis activity of Ru/Ba/LaCeO<i><sub>x</sub></i> pre-reduced at 700 °C is the highest reported among oxide-supported Ru catalysts. Our results indicate that low crystalline oxygen-deficient composite oxides, which include Ba<sup>2+</sup>, Ce<sup>3+</sup> and La<sup>3+</sup>, with strong electron-donating ability, accumulate on Ru particles and thus promote N≡N bond cleavage, which is the rate determining step for ammonia synthesis.</p>

Electron Donation by Low-Crystalline Ba-La-Ce Oxygen-Deficient Composite Oxide Accumulating on Ru Nanoparticles for Ammonia Synthesis under Mild Conditions

2019 ◽  
Author(s):  
Katsutoshi Sato ◽  
Shin-ichiro Miyahara ◽  
Yuta Ogura ◽  
Kotoko Tsujimaru ◽  
Yuichiro Wada ◽  
...  
Keyword(s):  
Ammonia Synthesis ◽  
Bond Cleavage ◽  
Synthesis Process ◽  
Strong Electron ◽  
Mild Conditions ◽  
Ru Nanoparticles ◽  
Rate Determining Step ◽  
Highly Active ◽  
Composite Oxides ◽  
Low Crystalline

<p>To mitigate global problems related to energy and global warming, it is helpful to develop an ammonia synthesis process using catalysts that are highly active under mild conditions. Here we show that the ammonia synthesis activity of Ru/Ba/LaCeO<i><sub>x</sub></i> pre-reduced at 700 °C is the highest reported among oxide-supported Ru catalysts. Our results indicate that low crystalline oxygen-deficient composite oxides, which include Ba<sup>2+</sup>, Ce<sup>3+</sup> and La<sup>3+</sup>, with strong electron-donating ability, accumulate on Ru particles and thus promote N≡N bond cleavage, which is the rate determining step for ammonia synthesis.</p>

An intelligent quantitative risk assessment method for ammonia synthesis process

2021 ◽  
Vol 420 ◽  
pp. 129893
Author(s):  
Zijian Liu ◽  
Wende Tian ◽  
Zhe Cui ◽  
Honglong Wei ◽  
Chuankun Li
Keyword(s):  
Risk Assessment ◽  
Ammonia Synthesis ◽  
Assessment Method ◽  
Quantitative Risk Assessment ◽  
Synthesis Process ◽  
Risk Assessment Method

Control Structure Design for CO2-Absorption Processes with Large Operating Ranges

2013 ◽  
Vol 1 (4) ◽  
pp. 233-244 ◽  
Author(s):  
Marc-Oliver Schach ◽  
Rüdiger Schneider ◽  
Henning Schramm ◽  
Jens-Uwe Repke
Keyword(s):  
Control Structure ◽  
Structure Design ◽  
Co2 Absorption

Control Structure Design for Parallel Processes

2005 ◽  
Vol 83 (2) ◽  
pp. 153-159 ◽  
Author(s):  
W.-H. Tsai ◽  
H.-P. Huang ◽  
C.-C. Yu
Keyword(s):  
Control Structure ◽  
Structure Design ◽  
Parallel Processes

Self-Optimizing and Control Structure Design for a CO2 Capturing Plant

2010 ◽  
pp. 331-338 ◽  
Author(s):  
Mehdi Panahi ◽  
Mehdi Karimi ◽  
Sigurd Skogestad ◽  
Magne Hillestad ◽  
Hallvard F. Svendsen
Keyword(s):  
Control Structure ◽  
Structure Design ◽  
Co2 Capturing ◽  
And Control
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