Sustainability Impact Assessment Area (SIA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
Sustainability Impact Assessment Area (SIA), Material Resource Efficiency Division (MRED), CSIR-Indian Institute of Petroleum (IIP), Dehradun 248005, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India.
Bioresour Technol. 2021 Dec;342:126016. doi: 10.1016/j.biortech.2021.126016. Epub 2021 Sep 25.
Lignin is a waste by-product of bio-refineries and paper-pulp industries. It has an attractive potential to produce numerous valuable chemicals due to its highly aromatic character. At present, large amount of lignin is burnt as a source of energy due to lack of suitable efficient lignin valorisation processes. The challenge exists in handling its complex heterogeneous structure and bond breaking at selective locations. The production of high value chemicals/petrochemical feedstocks will improve the economic viability of a bio-refinery. Oxidative depolymerization is a promising way to produce functional compounds from lignin. The aim of the current review is to present the novel methodologies currently used in the area of lignin oxidative depolymerization including effect of temperature, residence time, solvent, oxidizing agents, homogeneous and heterogeneous catalysis etc. It aims to present an insight into the structure of lignin and its breakdown mechanism.
木质素是生物精炼厂和纸浆造纸工业的一种废副产品。由于其具有高度芳构化的特性，因此具有生产众多有价值化学品的诱人潜力。目前，由于缺乏合适的高效木质素增值利用工艺，大量木质素被燃烧作为能源。挑战在于处理其复杂的不均匀结构和选择性位置的键断裂。生产高价值化学品/石油化工原料将提高生物精炼厂的经济可行性。氧化解聚是一种从木质素生产功能性化合物的有前途的方法。本综述的目的是介绍目前在木质素氧化解聚领域中使用的新方法，包括温度、停留时间、溶剂、氧化剂、均相和多相催化等的影响。它旨在深入了解木质素的结构及其分解机制。
