This invention which is a continuation-in-part of application No. 478,552, filed on March 9th, 1943, now United States Patent No. 2,406,172, issued August 20, 1946, relates to processes for oxidising ammonia to oxides of nitrogen by passing a mixture of ammonia and oxygen-containing gas...
The steady-state temperature regimes were observed at the inlet ammonia concentration equal to 4–5%. The selectivities to nitrous oxide and nitrogen oxide reached 87–88% and no more than 0.5%, respectively, at near 100% conversion of ammonia.Modeling of the pilot reactor demonstrated a good ...
Mechanism of oxidation of nitrogen nucleophiles by peroxodisulfate ion: Nitrate ion and ammonia 喜欢 0 阅读量: 51 作者:RE Ball,A Chako,JO Edwards,G Levey 摘要: The particular set of reactivities of nitrogen donors and of peroxodisulfate that make their interactions mechanistically complicated are ...
An overview of the state of the art in the direct oxygen or nitrogen insertion to aromatic rings and side-chains by hydroxylation, acetoxylation, partial oxidation and ammoxidation is presented. The influence of a variety of catalysts and oxidants on the yields of hydroxylated products of aromatic...
Little is known about the effects of nitrogen (N) fertilization rates on ammonia-oxidizing bacteria (AOB) and archaea (AOA) and their differential contribution to ammonia oxidation, particularly in greenhouse-based high N input vegetable soils. Potential ammonia oxidation (PAO) of these vegetable soi...
The paper mainly focuses on pure ammonia and ammonia-hydrogen fuel blends. The reaction mechanism also considers the formation of nitrogen oxides as well as the reduction of nitrogen oxides depending upon the conditions of the surrounding gas phase. Doping of the fuel blend with NO2 can result ...
The selective oxidation of ammonia to either N2 or NO on RuO2(110) single-crystal surfaces was investigated by a combination of vibrational spectroscopy (HREELS), thermal desorption spectroscopy (TDS) and steady-state rate measurements under continuous flow conditions. The stoichiometric RuO2(110) su...
To date, the effect of oxidation state on activity remains controversial in whether higher or lower oxidation states benefit the enhancement of catalytic activity. Herein, we discover a volcanic relationship between oxidation state and hydrogen evolution
Although anaerobic ammonium oxidation (anammox), the process of oxidizing ammonium into dinitrogen gas through the reduction of nitrite, is identified as an important process for removing reactive nitrogen, little is known about the dynamics of anammox and its contribution to nitrogen removal in ...
process of ammonia, and more particularly, relates to a catalytic oxidation process of ammonia by contacting the ammonia recovered from coke oven gas with a particular catalyst in a fluidized state in the presence of oxygen gas such as contained in air to decompose it to nitrogen gas and water...