Fig. 8: TEA and LCA of catechol production.
From: Standardization transformation of C-lignin to catechol and propylene
(a) Conceptual model of catechol production from raw biomass, including key stages such as biomass pretreatment, catalytic dealkylation, and product separation. (b) Comparison of the economic (TPC, in 103 CNY/t) and environmental (GHG emissions, in t CO₂ eq/t, and PFE depletion, in 104 MJ/t) performance of bio-based and fossil-based catechol production (c) Detailed breakdown of life cycle GHG emissions for bio-derived catechol using the BME process (left) and solvent extraction method (right), including contributions from biomass pretreatment, reaction, and product separation. Note: BME = ball-milling and enzymatic hydrolysis.
