journal article Open Access May 18, 2022

Technology Overview of Fast Pyrolysis of Lignin: Current State and Potential for Scale‐Up

ChemSusChem Vol. 15 No. 14 · Wiley
View at Publisher Save 10.1002/cssc.202200343
Abstract
AbstractLignin is an abundant natural polymer obtained from lignocellulosic biomass and rich in aromatic substructures. When efficiently depolymerized, it has great potential in the production of value‐added chemicals. Fast pyrolysis is a promising depolymerization method, but current studies focus mainly on small quantities of lignin. In this Review, to determine the potential for upscaling, systems used in the most relevant unit operations of fast pyrolysis of lignin are evaluated. Fluidized‐bed reactors have the most potential. It would be beneficial to combine them with the following: slug injectors for feeding, hot particle filters, cyclones, and fractional condensation for product separation and recovery. Moreover, upgrading lignin pyrolysis oil would allow the necessary quality parameters for particular applications to be reached.
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