IV shows the results obtained with two synthetic samples blended from Phillips Petroleum Co. Research Grade hydrocarbons. The accuracy of the analysis is about iO.5%. Several plant samples were analyzed for either n-paraffins or the sum of
n-paraffins and n-olefins. The analytical results for some of these samples, given in Table V, again show a precision of about *0.5~o. The n-paraffin plus n-olefin results for the platformate fraction and the n-decane concentrate could be considered approximate n~~
Table 111.
Analysis of Synthetic Samples for n-Paraffins
Components Blended: Toluene Benzene AIethylcyclohexane 2,2,i-Trimethylpentane 2-Mcthylpentane n-Hesane n-Heptane n-Octane Found: n-Paraffin
Platformate
Weight % Light Gasoplatline formate
9.80
44,79
35.06
...
0.67
35.53 li:28
19.77 30 27
5.10 29.98 10.25
95.32 1.55 0.10 ...
Charge 3.07 90:i9 ...
32 i t 21 83
2.02
3.53
14 I10
. .
1.01
2.81
15 17
21 81
1 28 1 28
2.81
10:01
15 OT 14 98 dv. 15 02
Table IV.
...
Heavy platformate
10 08 10 28 10 18
14 89 15 03
21 86
21 84
1 28
...
2.97 2 89
Analysis of Synthetic Samples for n-Paraffins Plus n-Olefins, n-Paraffins, and n-Olefins ___ Sample 1, Wt cc
H y d ocarbon ~
Blended
Toluene \lrthvlcycloIieuane (‘1-clohexane 2.2,4-Trimethidpentane n - Heptane 1-Hexene Total n-heptane I-hexene
34 60 15 27
+
13 84 18 35 17 94
36 29
Table V.
Sample Platformer charge Platformer charge Platformate fraction n-Dccxne roncentrate
Found
18 78, 18 77
18 02 36 67,36 04
Sample 2, Wt 7 Blended Found 11 46 41 25 10 S i 22 91 8 97 8 99, 9 22 4 54
13 51
4 44
13 61,13 46
Analysis o f Plant Samples
Boiling Range, ’ F. 251 to 394 2j2 t o 381 115 t o 180 331 to 345
+
n-Paraffin n-Olefin, Kt. 5
ACKNOWLEDGMENT
The authors wish to e x p r w their appreciation t o H. J. Hepp and coworkers for the helpful discussions. and t o Phillips Petroleum Co. for making publication of this paper 1)ossihle.
~~~
Platformer charge
parafin values. This appro\inintion valid because the total olefin contents of these samples were 0.5 and 2.3 volume % respectively.
n-Paraffin, n-t. % 22 6,22 2 21 7 , 2 1 8
23 9 3 , 2 4 06 7 5 33,76 37, i 5 68
LITERATURE CITED
(1) Barrer, R. AI., Belchetz, I., J . SOC. Chenz. Znd. 64, 131-3 (1945). (2) Barrer, R. AI,, Ibbitson, D. A , , Trans. Faradau SOC.40, 195-206
(1944). (3) Domask, IT. G., Kobe, I
