Nitrogen uses for

Traces of oxygen in nitrogen used for inerting can react with some products, such as butadiene and acrolein, and cause explosive polymerization. In one case, unknown to the acrolein plant, a trace of oxygen was deliberately added to the nitrogen supply at the request of another plant. 

The number of purge cycles is j = 5.6. Thus six pressure purges are required, compared to four for the vacuum purge process. The quantity of nitrogen used for this inerting operation is determined using Equation 7-7 ... 

Gas cylinders must be chained securely to the wall or laboratory bench (see pp. 644-646). Procedure B Work on a vacuum system requires preliminary review of procedures and careful execution in order to avoid damage to the apparatus and possible injury from broken glass in addition, the liquid nitrogen used for cold traps must be handled properly (see Appendix C). Safety glasses must be worn. 

MF is also used to remove microorganisms and particulates from air and other gases used in the pharmaceutical industry. Some specific applications include vent filters filtration of compressed air used in sterilizers, filtration of air or nitrogen used for solution transfers or at filing lines, and filtration of air or nitrogen used in fermentors. 

Peripheral equipment further purifies, meters, and preheats the hydrocarbon feed, the nitrogen used for flushing, the air for catalyst regeneration, and the hydrogen for catalyst reduction. Two preheaters are used to preheat the feed to proper reaction temperature. The heaters are programed to minimize hydrocarbon decomposition before it enters the reaction zone of the reactor. An electrically heated aluminum-bronze block serves as a heat sink which provides adequate temperature control to the catalyst bed. A second flow reactor, heated by an electric furnace and located in series with the main reactor, is an isomerization reactor that produces an equilibrium mixture of n-butenes. 

Filling of the test vessel was accomplished through 2-in. vacuum-jacketed transfer lines. Liquid nitrogen used for precooling and check-out was supplied from a 600-gal dewar liquid hydrogen was supplied from a 1500-gal dewar. Three valves provided control of liquid fill and dump and throttling during outflow. 

DT, j = 0.4, T = 0.44. Dynamic stripping of oxygen with nitrogen used for measuring... 

Also the differences in nitrogen forms used as fertilizer can influence alkaloid production [34]. In L. albus, differences are observed between sweet and bitter cultivars in relation to the different forms of nitrogen used for soil fertilization. For a sweet variety, the highest accumulation is observed when nitrogen is uptaken in NO3, NHj, or N2 form whereas, for other N forms, the alkaloid production is lower. On the contrary for a bitter cultivar, only uptaken in NO3 or N form cause less alkaloid production than the control [34]. 

List of the Selected Reference Peptides with Known Cross Section Values in Nitrogen Used for Calibrating the Acquired Barrier Voltage Spectra... 

Statistically, the light emitted by the UV lamp will be absorbed by solvent molecules or eventually by nitrogen used for spraying rather than by the analyte molecules. Therefore, the energy of the UV photons and the ionization energies of the compounds are decisive for the initiation of the APPI process (Fig. 12.44) [186]. 

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