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Process for the production of phenolic-rich pyrolysis oils for use in making phenol-formaldehyde resole resins
Process for the production of phenolic-rich pyrolysis oils for use in making phenol-formaldehyde resole resins
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机译:制备用于制造酚醛甲阶酚醛树脂的富含酚的热解油的方法
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摘要
A phenolic-rich pyrolysis oil is produced by pyrolysing lignocellulosic material at a temperature of no more than about 550. degree. C under an absolute pressure of no more than about 50 kPa to produce pyrolysis vapors, and condensing the pyrolysis vapors to obtain a condensate consisting of a phenolic-rich pyrolysis oil having a dew point of about 65 to about 75 C. under an absolute pressure of about 15 to about 20 kPa. Such a phenolic-rich pyrolysis can be directly used in making phenol-formaldehyde resol resins.
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