Effects of Neutralization, Decoloration, and Deodorization on Polycyclic Aromatic Hydrocarbons during Laboratory-Scale Oil Refining Process
Table 2
Results of neutralization on PAHs.
Run
Parameter
Removal rate (%)
Alkali concentration (%)
Temperature (°C)
Additional alkali (%)
Time (min)
BaP
PAH16
1
5.1
60
0.2
20
67.9
47.5
42.6
53.6
52.8
2
5.1
70
0.4
30
64.2
43.3
47.2
52.7
51.5
3
5.1
80
0.6
40
80.4
43.4
40.1
56.9
55.2
4
6.6
60
0.4
40
80.3
41.7
38.7
48.4
47.6
5
6.6
70
0.6
20
77.1
47.8
40.7
50.4
50.0
6
6.6
80
0.2
30
75.4
45.2
42.0
50.0
49.4
7
8.1
60
0.6
30
38.8
33.6
30.3
40.7
39.8
8
8.1
70
0.2
40
77.1
44.8
39.8
55.1
53.8
9
8.1
80
0.4
20
71.3
41.8
37.8
48.4
47.6
Item
Level
Alkali concentration (%)
Temperature (°C)
Additional alkali (%)
Time (min)
BaP
1
70.8
62.4
73.5
72.1
2
77.6
72.8
72.0
59.5
3
62.4
75.7
65.4
79.3
Δ
15.2
13.3
8.1
19.8
Rank
2
3
4
1
1
44.7
40.9
45.8
45.7
2
44.9
45.3
42.3
40.7
3
40.1
43.5
41.6
43.3
Δ
4.8
4.4
4.2
5
Rank
2
3
4
1
1
43.3
37.2
41.5
40.4
2
40.5
42.6
41.2
39.8
3
36.0
40.0
37.0
39.5
Δ
7.3
5.4
4.5
0.9
Rank
1
2
3
4
1
54.4
47.6
52.9
50.8
2
49.6
52.7
49.8
47.8
3
48.1
51.8
49.3
53.5
Δ
6.3
5.1
3.6
5.7
Rank
1
3
4
2
PAH16
1
53.2
46.7
52.0
50.1
2
49.0
51.8
48.9
46.9
3
47.1
50.7
48.3
52.2
Δ
6.1
5.1
3.7
5.3
Rank
1
3
4
2
HPAHs, including BbFlu, BkFlu, BaP, DBahA, BghiP, and IP; PAH4, including BaA, Chr, BbFlu, and BaP; LPAHs, including Nap, Acy, Ace, Fl, Phe, Ant, Flu, Pyr, BaA, and Chr.
