An integration type nitrogen and oxygen making machine with a compact structure with small occupation of land, and convenient installation and storage. An air inlet is arranged at one end of the filter(12) inside the machine cabinet, the filter outlet is connected with a sucker(17), the ...
The three most-productive approaches were the direct combination of nitrogen with oxygen, the reaction of nitrogen with calcium carbide, and the direct combination of nitrogen with hydrogen. In the first approach, air or any other uncombined mixture of oxygen and nitrogen is heated to a very ...
and the direct combination of nitrogen with hydrogen. In the first approach, air or any other uncombined mixture of oxygen and nitrogen is heated to a very high temperature, and a small portion of the mixture reacts to form the gas nitric oxide. Thenitric oxideis then chemicallyconvertedto ...
In the stratosphere, this electricity excites mostly nitrogen gas. FromScience News For Students In fast-growing appendages that help them move, the sea stars that perished had high amounts of a form of nitrogen found in low oxygen conditions — a sign that those animals may have died from ...
Si and Al combined with oxygen constitute the main structure of the FCC catalyst, whereas, C and N are the main components of the FCC coke4. Table 3 shows that the content of C on the catalyst surface declines with increasing combustion temperature. The greatest drop occurs in the ...
Several of the oxygen, hydrogen, and halogen compounds of nitrogen are toxic wheninhaled. A common error made in using household cleaners is to mix or use together ammoniacleaning fluids (containing nitrogen) and Clorox-type cleaning fluids (containing chlorine).The combined fumes can be deadly in...
Plant height and dry weight decreased with each type of stress. Low oxygen (0.20 g O2 cm2 min1) and nitrogen (10 ppm) combined with 70 meq/1 NaCl caused the greatest reduction of plant growth. Leaf number was reduced by low nitrogen and excess salt. Low oxygen reduced the accumulation ...
The water inlet was connected with a peristaltic pump, and the hydraulic residence time of the system was adjusted by controlling the inlet flow. An aerator was placed at one side of the bottom of the tank, providing adequate oxygen transfer into the synthetic wastewater, and an airflow meter...
With ethanol addition, at 473 K and 513 K when abundant nitrogen was released to liquid, the relative content of chain structures decreased by 13.57~20.45%, along with the increment of cyclobenzene and branched and oxygenous structures. Combined with Figure 5b, it was indicated that the ...
Because nitrogenase can be inhibited by oxygen, free-living organisms behave as anaerobes or microaerophiles while fixing nitrogen. Because of the scarcity of suitable carbon and energy sources for these organisms, their contribution to global nitrogen fixation rates is generally considered minor. Howeve...