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요약 5

I. 서론 8

1.1. 연구배경 8

1.2. 연구필요성 10

1.3. 연구목적 11

II. 이론적 고찰 12

2.1. 휘발성 유기규소화합물 특성 12

2.2. 흡착 이론 13

2.2.1. 물리적 흡착과 화학적 흡착 13

2.2.2. 흡착파과곡선 15

2.3. 활성탄소 16

2.3.1. 물리적 활성화와 화학적 활성화 16

2.3.2. 화학적 활성화 연구동향 17

III. 실험 장치 및 실험 방법 19

3.1. 흡착제 제조방법 19

3.1.1. 전구물질 19

3.1.2. 약품처리 19

3.1.3. 활성화 19

3.1.4. 세척방법 21

3.1.5. 표면개질 21

3.2. 흡착실험방법 22

3.2.1. 실험대상 물질 22

3.2.2. 흡착장치 구성 22

3.2.3. 흡착성능 평가방법 24

3.2.4. 흡착제 특성평가 24

IV. 실험 결과 및 고찰 26

4.1. 흡착제의 물리화학적 특성 26

4.1.1. 활성화 온도 영향 26

4.1.2. 산화처리 영향 28

4.1.3. 활성화 가스 영향 32

4.2. 흡착제의 D4흡착성능 평가 35

4.2.1. 흡착제 흡착성능 비교 35

4.2.2. D4 흡착 후 흡착제 흡착반응 특성 43

V. 결론 48

참고문헌 49

Abstract 58

List of Tables

Table 1. siloxane concentration limits for different energy conversion system... 9

Table 2. Names of samples and preparation conditions of adsorbent 21

Table 3. The parameters of porous structure derived from nitrogen isotherms for... 26

Table 4. Elemental composition of adsorbent prepared at different activation... 28

Table 5. The parameters of porous structure derived from nitrogen isotherms for... 29

Table 6. Elemental composition of oxidized adsorbents 32

Table 7. The parameters of porous structure derived from nitrogen isotherms for... 33

Table 8. Elemental composition of adsorbent prepared at different atmosphere 34

Table 9. The parameters of porous structure derived from nitrogen isotherms for all adsorbents 36

Table 10. Weight loss at drfferent temperature range (TG in nitrogen)... 46

List of Figures

Fig. 1. structure of common siloxane compounds, adapted frome... 12

Fig. 2. The breakthrought test scheme with the evolution of the saturation and... 15

Fig. 3. Mechanism of phosphate ester formation by phosphorylation of cellulose 18

Fig. 4. Process of activation and oxidation 20

Fig. 5. Raw material and activated carbon for D4 adsorbent 20

Fig. 6. General Siloxane model gas generation system for... 22

Fig. 7. System of D4 gas generation and adsorption process for D4 breakthrough... 23

Fig. 8. Emitted concentration of D4 versus generation time 23

Fig. 9. Effect of activation temperature on physical properties 27

Fig. 10. Comparison of N₂ isotherm for... 27

Fig. 11. Comparison of pore size... 27

Fig. 12. Comparison of N₂ isotherm for oxidized adsorbents 29

Fig. 13. Comparison of pore size distribution for oxidized adsorbents 30

Fig. 14. FTIR spectra for the selected 500WN, 500WS series before exposure to... 31

Fig. 15. Comparison of N₂ isotherm for... 33

Fig. 16. FTIR spectra for the selected... 34

Fig. 17. D4 breakthrough capacities for all adsorbents 35

Fig. 18. Dependence of the D4 adsorption capacity on parameters of porous structure for untreated adsorbent 39

Fig. 19. D4 breakthrough and desorption curves for different activation condition... 42

Fig. 20. FTIR spectra for the selected 500WN, 500WS serise after exposure to D4... 44

Fig. 21. DTG curve before; straight line and after; dotted line exposure to D4 45