Manufacture of Nitric Acid by the Oxidation of Ammonia<sup>1</sup>

Taylor, Guy B.; Chilton, Thomas H.; Handforth, S. L.

doi:10.1021/ie50260a002

Cited by 9 publications

(6 citation statements)

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“…Taylor , Chilton, and Handforth (1931) studied the effects of temperature and pressure on NO absorption in a pilot-plant-scale…”

Section: Studies With Prototype and Full-scale No X Scrubbing Equipmentmentioning

confidence: 99%

Scrubbing of gaseous nitrogen oxides in packed towers

Counce¹

1980

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Gaseous nitrogen oxides were scrubbed with water at 298 K and at near atmospheric pressure in towers packed with 6-and l3-rnm Intalox saddles. Nitrogen oxide removal efficiencies from 55 to 97% were obtained over a wide variation of packing depths. Other studies concerning the depletion of nitrous acid in packed towers are also presented.A mathematical model was developed based on the mass-transfer information for packed towers and chemical-reaction and mechanistic phenomena specific to the NO -HNO -H 2 0 system. Calculated NO removal x x x efficiencies utilizing this model agree with the observed experimental phenomena fairly closely. The model is presented and discussed along with the results of the experimental actiVities .

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“…Taylor , Chilton, and Handforth (1931) studied the effects of temperature and pressure on NO absorption in a pilot-plant-scale…”

Section: Studies With Prototype and Full-scale No X Scrubbing Equipmentmentioning

confidence: 99%

Scrubbing of gaseous nitrogen oxides in packed towers

Counce¹

1980

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“…One example of this function of the chemical engineer can be cited here (22). In the development of a process for the production of nitric acid from ammonia, the ground work was laid in 1839 by the researches of Kuhlmann (12) on the catalytic oxidation of ammonia to nitric oxide on the platinum gauze catalyst, 4NH, + 502 = 4NO + 6H20…”

Section: Nitric Acid From Ammoniamentioning

confidence: 99%

The Chandler Lecture Engineering in the Service of Chemistry

Chilton¹

1940

Ind. Eng. Chem.

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The honor was bestowed upon Mr. Chilton "for his outstanding achievements in the discovery and formulation of principles underlying the unit operations of chemical engineering, and in the application of these principles to process development, to equipment design, and to chemical plant construction and operation".After Mr. Chilton finished his lecture, Dean Barker of the School of Engineering presented the medal with the following remarks:

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“…The catalytic oxidation of ammonia (NH 3 ) to nitric oxide (NO) on Pt-Rh gauze (Ostwald process) is one of the oldest industrial reactions still in use today for manufacturing nitric acid. 1 Surface science techniques and computational approaches over several decades have made great strides towards understanding the ammonia oxidation process. [2][3][4][5][6][7] Yet, a broadly accepted molecular-level description of its mechanism is still lacking.…”

Section: Introductionmentioning

confidence: 99%

Dynamic nitroxyl formation in the ammonia oxidation on platinum via Eley–Rideal reactions

Yao

Giapis

2016

Phys. Chem. Chem. Phys.

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For over 90 years, nitroxyl (HNO) has been postulated to be an important reaction intermediate in the catalytic oxidation of ammonia to NO and its by-products (N, NO), but never proven to form or exist on catalytic surfaces. Here we show evidence from reactive ion beam experiments that HNO can form directly on the surface of polycrystalline Pt exposed to NHvia Eley-Rideal abstraction reactions of adsorbed NH by energetic O and O projectiles. The dynamic formation of HNO in a single collision followed up by prompt rebound from the surface prevents subsequent reactive interactions with other surface adsorbates and enables its detection. In addition to HNO, NO and OH are also detected as direct products in what constitutes the concurrent abstraction of three surface adsorbates, namely NH, N, and H, by O projectiles with entirely predictable kinematics. While its relation to thermal catalysis may be tenuous, dynamic HNO formation could be important on grain surfaces of interstellar or cometary matter under astrophysical conditions.

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Manufacture of Nitric Acid by the Oxidation of Ammonia¹

Cited by 9 publications

References 0 publications

Scrubbing of gaseous nitrogen oxides in packed towers

Scrubbing of gaseous nitrogen oxides in packed towers

The Chandler Lecture Engineering in the Service of Chemistry

Dynamic nitroxyl formation in the ammonia oxidation on platinum via Eley–Rideal reactions

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Manufacture of Nitric Acid by the Oxidation of Ammonia1

Cited by 9 publications

References 0 publications

Scrubbing of gaseous nitrogen oxides in packed towers

Scrubbing of gaseous nitrogen oxides in packed towers

The Chandler Lecture Engineering in the Service of Chemistry

Dynamic nitroxyl formation in the ammonia oxidation on platinum via Eley–Rideal reactions

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Product

Resources

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Manufacture of Nitric Acid by the Oxidation of Ammonia¹