A NEW TWO-DIMENSIONAL PYROLYSIS PROCESS FOR CONCENTRATING AND SEPARATING HIGH-VALUE LIQUID PRODUCTS FROM PLANT BIOMASS - (PPT)

摘要

Many high-value products are currently produced from plants using complex, expensive and unsafe solvent extraction processes. Pyrolysis is much cheaper, simpler and safer but produces complex liquid mixtures from which it is difficult to recover the desired products. This paper presents a new two-dimensional pyrolysis process that combines batch pyrolysis with fractional condensation to produce a liquid with a high concentration of desired product. With batch pyrolysis, the composition of the product vapors varies as the reactor temperature is raised, and one can select the reactor temperature range that corresponds to vapors with a high concentration of the desired product. Further product separation is performed in a fractional condensation train, which separates vapor components according to their condensation temperature.