Continuous flow toward sustainability: new routes to valorize lignocellulosic waste into higher value‐added chemicals

Abstract This research explores the continuous flow valorization of lignocellulosic biomass to produce biofuels, renewable chemicals, and sustainable materials. Various conversion pathways, including pyrolysis, hydrogenolysis, hydrotreating, and selective oxidation, were examined for obtaining high value products. The study focuses on key biomass derivatives such as furfural, 5‐hydroxymethylfurfural, and carboxylic acids, which are essential for the chemical and energy industries. Additionally, strategies for synthesizing biodegradable biopolymers and intermediates for sustainable plastics are discussed. The challenges in scaling up these technologies, ensuring catalytic stability, and reducing operating costs, which hinder industrial implementation, are analyzed. Alternative approaches to overcoming these limitations are also explored. Continuous flow biomass valorization emerges as a viable strategy to promote the circular economy and accelerate the transition toward sustainable chemical production, with applications in advanced biofuels, renewable chemical precursors, and environmentally friendly materials.