Advances in Heterogeneous Catalysis for Biomass Valorization

A special issue of Catalysts (ISSN 2073-4344). This special issue belongs to the section "Biomass Catalysis".

Deadline for manuscript submissions: 15 June 2026 | Viewed by 544

Special Issue Editors


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Guest Editor
GAME Lab, Department of Applied Science and Technology (DISAT), Politecnico di Torino, Corso Duca degli Abruzzi 24, 10129 Turin, Italy
Interests: heterogeneous catalysis; biomass valorization; CO2 conversion; catalyst design; nanostructured materials; green chemistry; energy storage; solid polymer electrolytes (SPEs)

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Guest Editor
Dipartimento di Chimica, Università degli Studi di Milano, Via Golgi 19, 20133 Milan, Italy
Interests: hydrogen production; biomass valorisation; DFT simulation; surface chemistry; heterogeneous catalysis

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Guest Editor
Chemistry Department, University of Milan, Via Golgi 19, 20133 Milan, Italy
Interests: heterogeneous catalysis in liquid-phase; metal nanoparticles for catalysis; explore the properties of non-noble metals for catalysis; NMR relaxometry to study the interaction between substrate and catalyst surfaces; hydrogenation/hydrogenolysis for biomass valorization; oxidation process of biomass derived molecules for biochemical production
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Special Issue Information

Dear Colleagues,

Biomass plays a crucial role in the transition toward a more sustainable and circular economy. As a renewable source of organic carbon, it offers a valuable route to producing biofuels and value-added chemicals. Biomass must be efficiently converted to reduce fossil fuel dependence and promote the development of more sustainable chemical processes. Heterogeneous catalysis plays a pivotal role in this context, enabling selective and scalable valorization of a wide range of biomass feedstocks, including lignocellulosic materials, agricultural residues, organic waste, vegetable oils, algal biomass, and other bio-based resources. This Special Issue fits within an emerging and rapidly expanding research field focused on developing catalysts that are increasingly efficient, durable, and environmentally friendly.

This Special Issue invites contributions highlighting advances in heterogeneous catalysis applied to biomass conversion. We welcome original research articles that explore new catalytic materials and innovative processes within the broader context of biomass valorization.

Topics may include catalyst development, process optimization, low-impact technologies, and novel routes for biomass valorization. We also welcome contributions exploring hybrid or emerging approaches, such as light- or electro-assisted catalytic systems, provided they exploit solid catalytic materials.

Dr. Andrea Jouve
Dr. Ilaria Barlocco
Dr. Marta Stucchi
Guest Editors

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Keywords

  • heterogeneous catalysis
  • biomass valorization
  • biofuels
  • value-added products
  • catalytic processes
  • biomass-based technologies
  • renewable feedstocks
  • green chemistry
  • catalyst design

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Published Papers (1 paper)

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25 pages, 21862 KB  
Article
Catalytic Pyrolysis of Açaí (Euterpe oleracea Mart.) Seeds: Circular Economy for Agro-Industrial Waste-to-Energy in the Amazon
by Douglas Alberto Rocha de Castro, Haroldo Jorge da Silva Ribeiro, Lauro Henrique Hamoy Guerreiro, Fernanda Paula da Costa Assunção, Lucas Pinto Bernar, Nilton Pereira da Silva, Daniela Muniz D’Antona Guimarães, Marta Chagas Monteiro, Luiz Eduardo Pizarro Borges, Kerstin Kuchta, Nélio Teixeira Machado and Sergio Duvoisin, Jr.
Catalysts 2026, 16(5), 485; https://doi.org/10.3390/catal16050485 - 21 May 2026
Viewed by 199
Abstract
This study aims to systematically investigate the combined effect of chemical activation of açaí seeds (Euterpe oleracea Mart.), with an aqueous sodium hydroxide (NaOH) solution at 2 mol·L−1, and process temperature by pyrolysis of alkaline activated açaí seeds on the [...] Read more.
This study aims to systematically investigate the combined effect of chemical activation of açaí seeds (Euterpe oleracea Mart.), with an aqueous sodium hydroxide (NaOH) solution at 2 mol·L−1, and process temperature by pyrolysis of alkaline activated açaí seeds on the yield of reaction products (bio-oil, gas, H2O, and biochar), physicochemical properties (acid value, density, and kinematic viscosity) and chemical composition (hydrocarbons and oxygenates) of bio-oil. Catalytic pyrolysis was carried out in a 143 L reactor at temperatures of 350 °C, 400 °C, and 450 °C, 1.0 atmosphere, operating in batch mode. The NaOH activation played a crucial role in modifying the thermal degradation pathway of the biomass, promoting the formation of specific chemical structures and altering the product yields. NaOH acted as a catalyst, enhancing the deoxygenation of the biomass and stimulating the formation of hydrocarbons. As a result, the yields of bio-oil, water, biochar, and gas varied from 5.77 to 7.20% (by mass), 14.90 to 19.77% (by mass), 41 to 54% (by mass), and 25.33 to 32.03%, respectively, influenced by the increase in temperature. FT-IR analyses indicated the presence of characteristic chemical functions of hydrocarbons (alkanes, alkenes, and aromatics) and oxygenated compounds (phenols, cresols, ketones, esters, carboxylic acids, aldehydes, and furans), with an intensification of hydrocarbon signals at higher temperatures. GC-MS analysis identified hydrocarbons and oxygenated compounds as the main chemical classes in the bio-oil, showing a strong dependence on pyrolysis temperature. It was observed that hydrocarbon concentration in bio-oil increased from 49.7% to 57.88% (area) with increasing temperature, while the concentration of oxygenated compounds decreased from 13.88% to 6.69% (area), demonstrating that NaOH activation, combined with temperature elevation, favors the formation of hydrocarbons and the reduction of oxygenated compounds, thereby improving the quality of the produced bio-oil. Full article
(This article belongs to the Special Issue Advances in Heterogeneous Catalysis for Biomass Valorization)
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