2 replies to this topic

[waheed2020]

Dear All,

 

I am facing a problem. I processed pyrolysis oil in the pilot scale distillation column. Now the higher boiling fractions BP>350C solidifies as wax( conatines parafin, olifins, aromatics, diaromatcis) in the cooler and condensers. I tried to distill n-hexane, kerosne, mixture of diesel and n-hexane to dissolve the wax but is difficult to do. Heating by tap is an option to melt the wax but will damage the glass equipment. Could anyone please suggest me a safe solvent to clean the wax from the setup. I would really be thankful.

[PingPong]

The solvents you tried are mainly alkanes (paraffines).

 

You should use a more aromatic solvent, such as a 50/50 mixture of kerosene and toluene, or even pure toluene.

Try different mix ratios.

[waheed2020]

Thank you. I will try