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

Koppers Inc. QI Formation and Significance 喹啉不溶物的形成及其重要性 Coal Tar Pitch – Critical Issues of Quality and Supply July 22, 2008 Coke Oven Battery焦炉 Coke Oven Tunnel-head 焦炉炉顶空间 喹啉不溶物类型 Types of QI 焦炉炼焦时产生 Coke Oven Derived 原生 Normal ~1?m 微米 Cracking of coal volatiles 煤挥发份的裂解 C/H 3.5 - 5.5 碳氢比例为 夹带 Carry-Over 5-500 ?m During Charging 装煤期间产生 次生（改质-- 热处理） Thermal Treatment of Tar/Pitch 中间相 Mesophase 4+ ?m (ASTM) C/H ~2 前中相 Mesogens 2 ?m (not discernible by optical microscopy)（光学显微镜下不可见） 2-4 ?m (visible but not ASTM) Coke Oven Conditions Effects on Normal QI焦炉条件对原生喹啉不溶物的影响 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 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 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 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 1 86 % Coke/14 % Pitch 86 % 的焦炭与14 % 沥青的混配比 Coke Coking Value – 100 wt. % 焦炭结焦值为 100 wt. % Pitch QI – 10 wt. % 沥青的喹啉不溶物成分为10 wt. % Pitch Coking Value – 55 wt. % 沥青的结焦值为55 wt. % 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 % 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 % Mix 2 86.7 % Coke/13.3 % Pitch 86.7 %的焦炭/13.3 % 沥青 Coke Coking Value – 100 wt. % 焦炭结焦值含量100 wt. % Pitch QI – 5 wt. % 沥青喹啉不溶物5 wt. % Pitch Coking Value – 53