chemical physics of discharges - Argonne National Laboratory
chemical physics of discharges - Argonne National Laboratory chemical physics of discharges - Argonne National Laboratory
egeneration. The system can be seen in Figure 1 as a generalized flow diagram. Usually, nitrogen bases are recovered from streams in which they are present in low concentrations (about 0.1 to 5%), such as coke-oven light-oil streams. Selection. of Reagents for Regenerative Systems The selection of an appropriate acidic extractant for a particular ' nitrogen base 1s the initial problem encountered in developing a regenerative' process. Although such factors as solubility, volatility, decomposition, and side reactions must be- considered, the acid component essentially must be Free Hydronium Protonated Water Base Ion Base The temperature dependence of the equilibrium constant follows the expression where AH = the heat of reaction, and R = the gas constant. I I , \, (2) I It is desirable that the ratio (KT-/KT~) be less than unity for a \i regenerative system (AH, the heat of reaction, must be negative). I In an effort to develop suitable parameters for the selection of . reagents for regenerative systems, the ionization equilibria of acids and I bases have been examined. I In a discussion of acid-base systems, the following equations are 1 applicable. _ _ Acid extraction of a nitrogen base (B) from a hydrocarbon Stream' involves the equilibrium reaction ( B + H~O+ = BH+ + H ~ O (3) ' which can be represented by an equilibr um- constant I I ! I 1 i
I 1 I i i I The ionization constant of the base involves the equll~brlum B + H20 = BtI+ + 011- expressed by an ionization constant 5 31 I Kb = lBHfl [OH-] (6) f,. I 13 I ,/ I ,' By usina the lonlzati@n const
- Page 484 and 485: 480 FATTY ACIDS AND n-ALKANES IN GR
- Page 486 and 487: 482 TA5L,E 2. - Carbon number distr
- Page 488 and 489: 6. 7. a. 9. 484 Lawlor, D. L., and
- Page 490 and 491: ' I ' Sample No. 6 ' 12 IO 8 6 z 4
- Page 492 and 493: . 488 uiolecular weight of which ca
- Page 494 and 495: Xississippi (Sample GS). Stock solu
- Page 496 and 497: 492 found at 5.7 and 4.9& for the W
- Page 498 and 499: 494 mechanisms. However, the voltad
- Page 500 and 501: For pure polynuclcar arom.i;ic hydr
- Page 502 and 503: - '-'. . ' . . values are listed in
- Page 504 and 505: 500 (1;) Ten, T. 17.: a;1d,Dic;
- Page 506 and 507: - ~ Resistivity Czlculation 2: 1 j:
- Page 508 and 509: 504 o ' C 0s 2 0 v x i 8 2 0 ! P -
- Page 510 and 511: 506 i
- Page 512 and 513: d 601 L P LL
- Page 516 and 517: I I I I I I I I m W N W N 0 (D ? 0
- Page 518 and 519: 514 was heated under nitrogen in a
- Page 520 and 521: The line broadening at 79OK of the
- Page 522 and 523: 13. 14. 15. 16. 17. 18. 19. 20. 21.
- Page 524 and 525: W L, Z 6 m (1: 0 6 d j o 2 ' 1 0.0
- Page 526 and 527: Coals 522 Studies of the 1600 cm-l
- Page 528 and 529: L in ole i c a c id - 0' Two sample
- Page 530 and 531: 526 Table 1.- Ultimate analyses of
- Page 532 and 533: 528 6. Friedel, R. A., and H. Retco
- Page 536 and 537: 532 and can be expressed in terms o
- Page 538 and 539: 534 in the vapor increases with inc
- Page 540 and 541: NH3 NH3 NH3 NH3 Pyridine Pyridine P
- Page 542 and 543: Mole Ratio of Test No. Quinoline to
- Page 544 and 545: IXPROFJCTION D; M. Mason Institute
- Page 546 and 547: -4:c~rciiny to recent studies o ;i4
- Page 548 and 549: 544 Table 1. LIGHT EMISSION OF Y"TR
- Page 550 and 551: emission in a few cases may be by d
- Page 552 and 553: LITERATUR2 CITED i. C. -. .' * il.
- Page 554 and 555: co, CH,,OR 1 - OTHER ADDITIVE FRITT
- Page 556 and 557: FRIT 'TED CO, CH,.OR 4 ___ OTHER AD
- Page 558 and 559: 340 350 300 400 4 50 500 600 700 80
- Page 560 and 561: 0 554 WITH COOLING (PLATE AT 40°C)
- Page 562 and 563: 5 56 then t = to when e = 0 2) the
- Page 564 and 565: 5 58 The surface heat transfer coef
- Page 566 and 567: Discussion and Results 560 Three br
- Page 568 and 569: __- ._ 562 Table I THERMAL AND PHYS
- Page 570: ln 4 I 0 4J v \ 1.0 0.8 0.6 L - 0.4
I<br />
1<br />
I<br />
i<br />
i<br />
I<br />
The ionization constant <strong>of</strong> the base involves the equll~brlum<br />
B + H20 = BtI+ + 011-<br />
expressed by an ionization constant<br />
5 31<br />
I<br />
Kb = lBHfl [OH-] (6)<br />
f,. I 13 I<br />
,/<br />
I<br />
,'<br />
By usina the lonlzati@n const
Change language