Method and equipment for producing ohenol by biomass twist and grade condensation

摘要

The invention relates to a method for preparing eugenol, which comprises the following steps: A / drying wet biomass; B / drying biomass according to step a / or step B.C / stage condensation, step B / stage steamCondensation is carried out in at least two tandem stages where the temperature of the first stage is between 170 ℃ and 230 ℃ and the temperature of the second stage is between 110 ℃ and 130 ℃ downstream of the first stage to recover the liquid sugar from the first stage. In the process of recovering the liquid mixture composed of eugenol and other condensates from the second step (c) / (d), the process of recovering the liquid mixture of eugenol and other condensates from the second step (c)/To get eugenin back The invention also relates to an apparatus for implementing the method.