Coal tar defenolization
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I would like to ask the experts: which design institutes currently possess coal tar defenolization technology? Could you provide a brief overview of this technology along with contact information? Thank you!
Is it high-temperature coal tar or low-temperature coal tar?
It is to produce medium- and low-temperature coal tar as a by-product of lignite production.
The defoaming method is similar to that used for defoaming high-temperature coal tar; first, the fractions with temperatures below 300 degrees are separated, and then defoaming is carried out. It should be noted that the fractions from low-temperature coal tar with temperatures below 300 degrees contain over 50% phenol, so attention must be paid to the details during the processing.
Friends on the first floor, if you are interested in cooperating on low-temperature coal tar phenol removal, please contact me at my email address sdsx1988@126.com
Low-temperature tar contains a high amount of higher phenols; can the distillation range of the product obtained by washing it within a boiling range of 300 degrees be considered acceptable?
6th floor: Could you provide some information on why low-temperature coal tar contains more higher phenols?