1. quench kolonunun
wastewater akımından
ACN & SU GERİ KAZANIMI
Tayfun EVCİL
Ege University Chemical Engineering
Diploma Thesis Presentation
21.06.2011

2. İçerik
 Projeye Giriş
 Termodinamik Modeller
 Yeni Model
 Sonuçlar
 Referanslar

3. Projeye Giriş - Sohio Prosesi

4. Quech Kolonu Wastewater Akımı
Numune Sonuçları
 17000 kg/saat Maddeler Agırlıkça %
debili akımın AKROLEIN 0.0315
 Sıcaklıgı 86 oC HCN 0.09
 Basıncı 3.2 bar ACETONITRIL 0.065
PROPIONITRIL <0.001
SU 83.2
AMONYUM SULFAT 7.4
ACN 0.584

5. Termodinamik Modeller
Amonyum Sulfatın sıvı çözelti
içinde bulundugu 3 farklı
durumu belirtmede kullanıldı.
NH4+
 ELECNRTL
 Iyon kimyası (NH ) SO4(solid)
(NH4)2SO4(a 2
4
q)
SO42-
 NRTL-RK
 Faz (sıvı-gas) dengesi

6. Yeni Model
 Distilasyon Kolonu
 Kristalizör
 Filtre

7. Distilasyon Kolonu
Concentration Profile Through the Stages in
Distillation Column
0.20 1.00
0.18 0.90
Water Concentration
0.16 0.80
Concentration
0.14 0.70
0.12 0.60 HCN
0.10 0.50 Acrolein
0.08 0.40 Acrylonitrile
0.06 0.30 Acetonitrile
0.04 0.20 Propionitrile
0.02 0.10 Water
0.00 0.00
1 2 3 4 5 6 7 8
Number of Stage

8. Distilasyon Kolonu
STREAMS FEED TOP-P BOTTOM-P
From Distillation Column Distillation Column
To Distillation Column Crystallizer
Total Mass Flow [kg/hr] 17000 400 16600
SUBSTREAM: MIXED
Component Mass Flow [kg/hr]
HCN 17 17 4.35E-04
Acrolein 6 6 3.66E-11
Acrylonitrile 109 109 1.61E-09
Acetonitrile 12 12 8.85E-07
Propionitrile 0.2 0.2 5.17E-07
Water 15480 256 15223
NH4+ 376 - 376
SO4-- 1001 - 1001
Mass Flow [kg/hr] 17000 400 16600
Volume Flow [m3/hr] 16.9 0.48 17.12
Temperature [oC] 86 104 137

9. Kristalizör
STREAMS BOTTOM-P VAPOR EXT-CRYS
From Distillation Column Crystallizer Crystallizer
To Crystallizer Cooler
Total Mass Flow [kg/hr] 16600 12500 4100
SUBSTREAM: MIXED
Component Mass Flow [kg/hr]
HCN 4.35E-04 4.26E-04 9.58E-06
Acrolein 3.66E-11 - -
Acrylonitrile 1.61E-09 1.60E-09 1.01E-11
Acetonitrile 8.85E-07 8.67E-07 1.75E-08
Propionitrile 5.17E-07 5.11E-07 6.09E-09
Water 15223 12500 2723
NH4+ 376 - 10
SO4-- 1001 - 25
Mass Flow [kg/hr] 16600 12500 2758.17
Volume Flow [m3/hr] 17.12 7244.23 3.21
Temperature [oC] 137 136 136
Substream: CISOLID
Component Mass Flow [kg/hr]
(NH4)2SO4(Soild) - - 1342
Volume Flow [m3/hr] - - 0.76
Temperature [oC] - - 135.97

10. Filtre
STREAMS IN-FLTER SOLID WATER
From Cooler Filter Filter
To Filter
Total Mass Flow [kg/hr] 4100 1889.9 2210.1
SUBSTREAM: MIXED
Component Mass Flow [kg/hr]
HCN 9.58E-06 1.90E-06 7.68E-06
Acrolein - - -
Acrylonitrile - - -
Acetonitrile 1.75E-08 3.49E-09 1.41E-08
Propionitrile 6.09E-09 1.21E-09 4.88E-09
Water 2723 541 2182
NH4+ 10 2 8
SO4-- 25 5 20
Mass Flow [kg/hr] 2758.17 548.07 2210.1
Volume Flow [m3/hr] 2.91 0.58 2.33
Temperature [oC] 50 50 50
Substream: CISOLID
Component Mass Flow [kg/hr]
(NH4)2SO4(Soild) 1342 1342
Volume Flow [m3/hr] 0.76 0.76 -
Temperature [oC] 50 50 -

11. Sonuçlar
 27.25% (109 kg/hr) saflık ile elde edilen ACN,
yürürlükte olan prosese entegrasyonu sonucu
geri kazanımı
 1324 kg/saat amonyum sulfat geri kazanımı
 Halen tesisde 17000 kg/saat debili kirli-su
insineratöre yollanırken, önerilen yeni model ile
sadece2210 kg/saat debili su insineratöre
beslenmektedir
 Kristalizasyon ünitesinden elde edilen 12500
kg/saat debili buharın (136 oC, 3.2 atm)
değerlendirilmesi

12. Referanslar
1. J. L. Callahan, R. W. Foreman, and F. Veatch. “Process
for the Oxidation of Olefins”; U.S. Patent No. 2,941,007,
June 14, 1960.
2. B.D. Berber and K. E. Anderson. “Petrochemicals”;
Modern Petroleum-A Basic Primer of the Industry. Tulsa,
OK: Petroleum Publishing Co., 1978.
3. J. F. Brazdil. “Acrylonitrile” Kirk-Othmer Encyclopedia of
Chemical Technology, Fourth Edition, Vol. 1. New York:
Wiley-Interscience, 1991.
4. ScienceLab.com, Inc. Chemical & Laboratory
Equipment
5. American Chemical Society Data Browser

13. İlginiz İçin Teşekkürler..