QI Formation and Significance 喹啉不溶物的构成及其重要性

• Provides Pathway for Release of Volatiles 提供了挥发 物挥发的通道
• Increases Amount of Disorder in Binder Coke 增加沥 青焦内部的无序性
Coking Value of Mix Scenario 不同生料配比的结焦值计算
• Mix Coking Value = 100 x 0.86 + 55 x 0.14 = 93.7 wt. %
混配结焦值为= 100 x 0.86 + 55 x 0.14 = 93.7 wt. %
• Composition of Mix 2
第二种混配物的成分
• Mix 1 Binder Content = 14 % x 0.90 = 12.6 %
• Mix 2
• 86.7 % Coke/13.3 % Pitch • Coke Coking Value – 100 wt. % • Pitch QI – 5 wt. % • Pitch Coking Value – 53 wt. %
86.7 %的焦炭/13.3 % 沥青 焦炭结焦值含量100 wt. % 沥青喹啉不溶物5 wt. % 沥青结焦值53 wt. %
Primary QI (Normal QI) 原生QI（正常QI）
Influences of Normal QI on Binder Pitch 原生喹啉不溶物对粘结剂沥青的影响
• Increasing Amount of QI Increases Pitch Coking Value 喹啉不溶物的含量增加使沥青结焦值随之增加
第一种混配物中粘结剂含量= 14 % x 0.90 = 12.6 %
• Pitch Mix 2 5 wt. % QI
沥青中喹啉不溶物的含量 5 wt. %
• Mix 2 Pitching Level at Equal Binder Content = 12.6/0.95 = 13.3 % 第二种混配物含有相同粘结剂成分的沥青含量= 12.6/0.95 = 13.3 %
焦炉炉顶空 间
喹啉不溶物类型 Types of QI
➢ 焦炉炼焦时产生
➢ 次生（改质-- 热处理）
➢ Coke Oven Derived
原生 Normal
▪ ~1m 微米 ▪ Cracking of coal
volatiles 煤挥发份的裂解 ▪ C/H 3.5 - 5.5 碳氢比例为
➢ Thermal Treatment of Tar/Pitch
▪ 2-4 m (visible but not ASTM)
Tar QI Content, wt.%
Coke Oven Conditions Effects on Normal QI 焦炉条件对原生喹啉不溶物的影响
Effect of Tunnel-Head Temperature on Tar Normal QI Content
中间相 Mesophase
▪ 4+ m (ASTM) ▪ C/H ~2▪ 5-500 m ▪ During Charging 装煤期间产生
▪ <2 m (not discernible by optical microscopy)（光学显微 镜下不可见）
17.0 炉顶空间温度对焦油中原生喹啉不溶物的影响 14.0 11.0
8.0 5.0
1600 1650 1700 1750 1800 1850 1900 1950 2000 2050 2100 2150 2200 2250
Tunnel-Head Temp., F
煤的单位体积密度对焦油中原生喹啉不溶物的影响
• Formation and Growth of Mesophase in Binder Pitch Strongly Influences Anode Properties粘结剂沥青中中间相的形成及增长会严重影 响到预焙阳极的品质
• Increasing Amount of QI Increases Optimum Pitching Requirement 喹啉不溶物含量增加使最优化沥 青最佳配比量增加
• Amount and Size of QI Controls Penetration of Pitch into Coke Porosity 喹啉不溶物的含量及粒度影响沥青对 石油焦气孔的渗透性
• Mix Coking Value – 100 x 0.867 + 53 x 0.133 = 93.7 wt. % 混合结焦值为100 x 0.867 + 53 x 0.133 = 93.7 wt. %
Influences of Normal QI on Anode Properties 原生喹啉不溶物对阳极品质的影响
• Mix 1
• 86 % Coke/14 % Pitch • Coke Coking Value – 100 wt. % • Pitch QI – 10 wt. % • Pitch Coking Value – 55 wt. %
86 % 的焦炭与14 % 沥青的混配比 焦炭结焦值为 100 wt. % 沥青的喹啉不溶物成分为10 wt. % 沥青的结焦值为55 wt. %
16 14 12 10
8 6
40 41 42 43 44 45 46 47 Bulk Density (Dry, Cone) lb/cu ft
Tar QI Content, wt.%
Zero QI Pitch Mesophase – Coalescence 零QI沥青中间相的融合过程
Coal Tar Pitch Mesophase – Does Not Coalesce Due to QI 沥青中间相由于QI的存在而不会融合
QI Formation and Significance 喹啉不溶物的形 成及其重要性
Koppers Inc.
Coal Tar Pitch – Critical Issues of Quality and Supply July 22, 2008
Coke Oven Battery焦炉
Coke Oven Tunnelhead