Tar distillation!
Thread Content
Intermediate products in tar distillation: light oil. How is the triphenyl content in its composition controlled? What factors influence this level of content, and what are the procedures for managing it?…
No one knows about tar distillation?
Are the three phenols mentioned by the poster benzene, toluene, and xylene? For these three aromatic hydrocarbons, due to their different boiling points, their distillation temperatures also vary. If distillation is used, the plate positions at which these three components are distilled out are different; thus, their composition is determined by the distillation outlet temperature and the plate positions. In the case of simple distillation, these three components are completely distributed according to their boiling points. As for the operation method, it needs to be controlled based on the distillation method and the characteristics of the equipment.
What I produce here is mainly light oil, which is sent out for distribution. The specifications for this light oil require that its triphenyl content be within acceptable limits. I want to know how to ensure that the light oil meets these standards, in other words, how to control the level of triphenyl content. The process used is atmospheric and vacuum distillation of coal tar
High tower top temperature, high triphenyl content? Or still…
The most direct way to control the temperature at the top of the control tower is to maintain a density around 0.85; there are no other effective methods. The focus in coal tar processing is not on controlling the content of triphenyls in the light oil, and it’s not possible to achieve precise control in this regard.