Nitrogen from total feed

Nitrogen removal from total feed as calculated from elemental analyses of distillate and recovered bottoms varied between 23 and 62 wt %. Trapped water and ammonia were observed when the recovered products were distilled, which accounts for the disparity with data in Table V. In subsequent runs this problem was eliminated by using higher separator temperatures. These two values represented the mildest and the most severe conditions used during this run. These results suggest a definite correlation between severity and elimination. Other data, however, fail to show a smooth correlation. 

The heteroatom elimination from total feed is plotted vs. temperature in Figure 11. The data show an increase in sulfur, oxygen, and nitrogen removal as the temperature increases. The scatter in the oxygen data is considerably greater than for either nitrogen or sulfur. 

The interstage flow could also be calculated from material balance considerations at the top end of the system. When no product is being withdrawn, the mg. atoms of 4-f and 2+ nitrogen leaving as waste must be equal to the total feed flow L/ in mg. atom N/minute as NO2 or N2O4. The mg. atoms N/minute of 2-f nitrogen as NO in the waste stream is then Lf(l — x ) which must be equal to the 4-f nitrogen that entered the refluxer and was reduced to NO thus. 

Since insect fecal pellets contain both undigested food and nitrogenous waste products, Bhattacharya and Waldbauer (58) subtracted the urine content of the feces from the total weight of the fecal pellet. This provided better estimates of assimilation and conversion of assimilated food. Schmidt and Reese (57) noted that BCW larvae will feed upon their fecal pellets if no other food is available. Growth on fecal pellets is nearly as rapid as growth on diet, suggesting that much of the nutrient content of the diet is not assimilated. The result of fecal feeding on nutritional parameters is an overestimation of the AD and ECI and an underestimation of the ECD. 

HYDROGEN TRANSFER INDEX (HTI1 TEST In this test, 0.5 /xL pulses of 1-hexene feed were carried from a heated sampling valve into a fixed-catalyst bed in a stainless steel reactor by a nitrogen carrier stream at 800 mL/min. (at STP). The catalyst was -250 mesh and diluted with alumina of the same mesh size plus 80-100 mesh acid-washed Alundum. Reactor pressure was controlled by an Annin valve. The effluent stream went to the injector splitter of a gas chromatograph. The reactor conditions included a catalyst temperature of 221°C and 3.45 MPa total pressure. 

The fluorination of quinoline was performed in a microstructured reactor operated in the annular-flow regime, which contained one microchannel with two consecutive feeds for gas and liquid [311,312]. The role of the solvent was large. The reaction was totally unselective in acetonitrile and gave only tarlike products. With formic acid, a mixture of mono- and polyfluorinated products besides tar was formed. No tar formation was observed with concentrated sulfuric acid as solvent at 0-5 °C. In this way, a high selectivity of about 91% at medium conversion was achieved. Substitution was effective only in the electron-rich benzenoid core and not in the electron-poor pyridine-type core. The reactivity at the various positions in the quinoline molecule is 5 > 8 > 6 and thus driven by the vicinity to the heteroatom nitrogen that corresponds to the electrophilic reactivity known from proton/deuterium exchange studies in strong acid media. 

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