PROCESS FOR THE PRODUCTION OF PHENOLIC-RICH PRYOLYSIS OILS FOR USE IN MAKING PHENOL-FORMALDEHYDE RESOLE RESINS

摘要

A phenolic-rich pyrolysis oil is produced bypyrolysing lignocellulosic material at a temperature ofno more than about 550°C under an absolute pressure of nomore than about 50 kPa to produce pyrolysis vapors, andcondensing the pyrolysis vapors to obtain a condensateconsisting of a phenolic-rich pyrolysis oil having a dewpoint of about 65 to about 75°C under an absolutepressure of about 15 to about 20 kPa. Such aphenolic-rich pyrolysis can be directly used in makingphenol-formaldehyde resol resins.