Chapter 4 - Pretreatment Technologies for Lignocellulosic Biomass Refineries

Ankita Juneja, Deepak Kumar, Karthik Rajendran, Ashutosh Mittal

Research output: Chapter in Book/Report/Conference proceedingChapter


Pretreatment is a critical step in processing lignocellulosic biomass into biofuel and bioproducts and is considered the energy and cost center of the biomass conversion process. Although a large number of pretreatment technologies have been developed, not all the techniques are viable on a commercial scale at this stage. Moreover, the technology choice and process conditions depend highly on the type of biomass and the overall biorefinery scheme. This chapter provides an overview of different pretreatment methods, including their mechanism, important process parameters, current status, and challenges. The opportunities associated with new technologies and approaches are presented. Emphasis is placed on low-severity thermal pretreatment technologies. The chapter also provides a brief discussion of the challenges to achieving the economic viability of the technologies on a commercial scale.
Original languageAmerican English
Title of host publicationAdvances in Lignocellulosic Biofuel Production Systems
Subtitle of host publicationApplied Biotechnology Reviews Series
EditorsP. Moodley, R. C. Ray, E. B. Gueguim Kana
StatePublished - 2023

NREL Publication Number

  • NREL/CH-2800-87477


  • biorefinery
  • enzymatic hydrolysis
  • inhibitors
  • lignocellulose
  • pretreatment
  • severity


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