Heterogeneous Catalytic Upgrading of Biofuranic Aldehydes to Alcohols

Abstract

Heterogeneous catalytic conversion of lignocellulosic components into valuable chemicals and biofuels is one of the promising ways for biomass valorization, which well meets green chemistry metrics, and can alleviate environmental and economic issues caused by the rapid depletion of fossil fuels. Among the identified biomass derivatives, furfural (FF) and 5-hydroxymethylfurfural (HMF) stand out as rich building blocks and can be directly produced from pentose and hexose sugars, respectively. In the past decades, much attention has been attracted to the selective hydrogenation of FF and 5-hydroxymethylfurfural using various heterogeneous catalysts. This review evaluates the recent progress of developing different heterogeneous catalytic materials, such as noble/non-noble metal particles, solid acids/bases, and alkali metal salts, for the efficient reduction of bio-based furanic aldehydes to alcohols. Emphasis is laid on the insights and challenges encountered in those biomass transformation processes, along with the focus on the understanding of reaction mechanisms to clarify the catalytic role of specific active species. Brief outlook is also made for further optimization of the catalytic systems and processes for the upgrading of biofuranic compounds.

Green and Facile Synthesis of Metal-Organic Framework Cu-BTC-Supported Sn (II)-Substituted Keggin Heteropoly Composites as an Esterification Nanocatalyst for Biodiesel Production

“…Nowadays, fossil fuel resource demand is expanding progressively due to industrial growth and constant population rise. Meanwhile, the utilization of fossil fuels along with environmental pollution and global warming has led to the consideration of alternative energy sources like biofuels (Bhanja and Bhaumik, 2016;Long et al, 2019;Negm et al, 2019;Xu et al, 2019;Li et al, 2020). Among the various biofuels, biodiesel is considered to be the most promising renewable fuel, possibly due to its biodegradable, non-toxic, and environmentally friendly features (Al-Saadi et al, 2018;.…”

Electrocatalytic reduction of furfural with high selectivity to furfuryl alcohol using AgPd alloy nanoparticles

“…2 Much industrial interest is associated with three types of biopolymer present in plant cell walls: lignin, cellulose, and hemicellulose. 3 Hemicellulose is made from branched chains of various sugars including xylose, the majority of which is consumed industrially by up-conversion to yield furfural. 4 Furfural is recognized as a platform molecule that can be utilized for the production of a broad variety of value-added chemicals, including furfuryl alcohol, 2-methylfuran, and the dimer product hydrofuroin.…”

Homogeneous Catalyzed Valorization of Furanics: A Sustainable Bridge to Fuels and Chemicals

“…The catalytic upgrading of furfurals is one of the most important steps to produce biofuels and renewable chemicals. Among many biomassderived products, furanics have been extensively studied using biocatalysis [14], homoge-Catalysts 2021, 11, 1371 2 of 31 neous [8][9][10][11] and heterogeneous catalysis [15], and electrocatalysis [16] in different reaction media. Furanics can be produced from non-edible biomass and provide opportunities for sustainable new products often with unique properties that can be used, for example, in the polymer, solvent, and surfactant industries [17,18].…”