摘要
分析了混合二甲苯馏程范围、色度、酸洗比色和溴指数不合格的原因。实践表明,性能优良的颗粒白土能够有效降低混合二甲苯的溴指数、酸洗比色和色度;将白土处理器放在二甲苯塔前面,可延长白土使用时间1～2个月;重时空速取0.6～1.5 h^(-1)较合适;两台白土处理器串联操作比并联操作更有利;在投用前进行充分干燥和活化,采用较低的初始操作温度,可使周期寿命延长20%～30%;用器内或器外再生可以取得较好的经济效益和社会效益。
The causes of off-specifications of mixed xylene s distillation range,color,acid wash color and bromine index are studied.The operation shows that the particulate clay of good performances can effectively reduce color,acid wash color and bromine index of mixed xylene.The cycle period of clay can be extended by about 1-2 months by locating the clay treaters at upstream of the xylene splitter.The appropriate WHSV is 0.6-1.5 h^(-1).The design of two clay treaters in series is better than in parallel design.Suf...
出处
《炼油技术与工程》
CAS
2010年第2期13-17,共5页
Petroleum Refinery Engineering
关键词
混合二甲苯精制
白土
活性
吸附性能
使用寿命
clay treatment of mixed xylene
clay
activity
adsorption performance
service life
