Article
Agricultural Engineering
Yong Liu, Lungang Chen, Yubao Chen, Xinghua Zhang, Jianguo Liu, Qiying Liu, Yuping Li, Chenguang Wang, Qi Zhang, Longlong Ma
Summary: Aviation fuel, a high energy density fuel, is typically produced from refineries in the petroleum industry. The production of renewable aviation fuel from biomass helps alleviate the pressure of carbon emission regulations. This study utilized various operational processes to convert biomass, specifically corn stover, into aviation fuel. The resulting fuel has a low oxygen content, high heat value, and consists mainly of isoparaffins.
BIORESOURCE TECHNOLOGY
(2023)
Article
Agricultural Engineering
Rocio Rengel, Inmaculada Giraldez, Manuel J. Diaz, Trinidad Garcia, Javier Vigara, Rosa Leon
Summary: Replacement of fossil fuels can be achieved by using bio-based procedures to produce fine chemicals. The microalga Chlamydomonas reinhardtii was selected for its ability to accumulate starch, which provides an environmentally-friendly alternative source of chemical building blocks. The study optimized the hydrolysis conditions of algal biomass to produce lipophilic coproducts. The results showed that Chlamydomonas can be used as a sustainable feedstock for the simultaneous production of high-added value lipophilic compounds and platform chemicals.
BIORESOURCE TECHNOLOGY
(2022)
Article
Green & Sustainable Science & Technology
Maria Dyah Nur Meinita, Amron Amron, Agus Trianto, Dicky Harwanto, Wahyu Caesarendra, Gwi-Taek Jeong, Jae-Suk Choi
Summary: The development of macroalgal biorefinery products as an alternative source of renewable fuels presents a significant opportunity to reduce dependence on fossil fuels. Despite the advantages of macroalgae biomass in producing platform chemicals like levulinic acid, there are challenges such as sustainability, pretreatment efficiency, and hydrolysis technology that need to be addressed for industrial-scale production.
Article
Chemistry, Multidisciplinary
Lungang Chen, Yong Liu, Canshuo Gu, Gang Feng, Xinghua Zhang, Jianguo Liu, Qi Zhang, Chenguang Wang, Longlong Ma
Summary: In this study, Ni-based bimetallic catalysts were prepared and the NiMn catalyst showed the highest efficiency with an 84.5% yield of 2-butanol under optimal conditions. The synergy between Ni-0 and Mn2+ species on the modified surface contributed to the high affinity of the catalyst towards adsorbing LA and LA-derived molecules, as confirmed by density functional theory calculations.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2021)
Article
Biochemistry & Molecular Biology
Almudena Lorente, Alberto J. Huertas-Alonso, Manuel Salgado-Ramos, Diego J. Gonzalez-Serrano, M. Prado Sanchez-Verdu, Beatriz Cabanas, Milad Hadidi, Andres Moreno
Summary: Circular economy views waste as new raw materials for value-added products. Agroindustrial lignocellulosic waste can be a valuable source of platform chemicals like levulinic acid (LA). This study focuses on the microwave-assisted acidic conversion of microcrystalline cellulose (MCC) into LA, assessing the impact of catalysts, inorganic salt addition, and ball milling pre-treatment on LA yield. The optimal conditions resulted in a 48% LA yield, and these conditions were successfully applied to melon rind, achieving a 51% yield of LA.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Review
Agricultural Engineering
Yijun Tian, Fangfang Zhang, Jieni Wang, Leichang Cao, Qiuxia Han
Summary: Biomass is a renewable and abundant resource that can be used to produce important compounds like levulinic acid and levulinate esters, with the help of efficient solid acid catalysts. The challenges and prospects in the production of these compounds from biomass are discussed in order to achieve a more economical and energy efficient process in line with sustainable development goals.
BIORESOURCE TECHNOLOGY
(2021)
Review
Environmental Sciences
Lethiwe D. Mthembu, Rishi Gupta, Nirmala Deenadayalu
Summary: This study examines the production of levulinic acid (LA) from 1875 to 2021, including the achievements and ongoing obstacles. Using biomass as a substrate for LA synthesis offers potential advantages, but the transition to a bioeconomy remains challenging due to various contributing factors.
WASTE AND BIOMASS VALORIZATION
(2023)
Article
Chemistry, Multidisciplinary
Tiprawee Tongtummachat, Attasak Jaree, Nattee Akkarawatkhoosith
Summary: An effective method for continuous furfural production from xylose using formic acid and aluminum chloride as catalyst in an organic solvent-free system was proposed. The influence of operating conditions on furfural yield was investigated and optimized. The study also demonstrated a continuous in situ catalyst removal method, providing insights into practical continuous furfural production.
Article
Chemistry, Physical
Burcak Kaya Ozsel
Summary: This research aimed to explore the potential of utilizing cellulose-based waste fluff to obtain hydrogen gas and levulinic acid. It was found that waste fluff hydrolysate showed the highest gasification performance and hydrogen selectivity in the reforming process. Additionally, a higher concentration of levulinic acid was produced using BT500S solid acid catalyst compared to one-step conversion process.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Review
Energy & Fuels
Yiyuan Jiang, Zao Li, Yuncong Li, Long Chen, Heng Zhang, Hu Li, Song Yang
Summary: Currently, biomass energy is seen as an emerging potential energy reserve. Levulinic acid (LA) and its esters, derived from biomass hydrolysis, can be converted into various chemicals such as 5-methyl-2-pyrrolidones (5MPs) through reductive amination, playing an important role in our daily life. This review systematically introduces the latest advances in the sustainable catalytic reductive amination of LA and its ester to prepare 5MPs using different catalysts. The review also discusses the reaction mechanism, catalyst efficiency, and future development prospects.
Article
Engineering, Environmental
Bo Woo Lee, Jin Young Seo, Keunhong Jeong, Jungkyu Choi, Kie Yong Cho, Sangho Cho, Kyung-Youl Baek
Summary: In recent years, alternative commodity production utilizing biomass has attracted significant interest. In this study, the catalytic activity for levulinic acid production from glucose was investigated using UiO-66 impregnated with various types of Bronsted acid groups. The effect of alkyl spacer and Bronsted acid group in biomass conversion was first discovered using MOF.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Polymer Science
Solange Magalhaes, Alexandra Filipe, Elodie Melro, Catarina Fernandes, Carla Vitorino, Luis Alves, Anabela Romano, Maria G. Rasteiro, Bruno Medronho
Summary: In this study, a combination of bio-based and renewable chemicals, levulinic acid (LA) and formic acid (FA), was successfully used to extract lignin with high purity from lignocellulosic biomass waste. The optimization of parameters such as LA:FA ratio was crucial for improving the yield and purity of the extracted lignin. Additionally, electron microscopy images demonstrated significant structural and morphological changes in the biomass samples, indicating the suitability of the newly developed bio-fractionation process.
Review
Chemistry, Multidisciplinary
Li Liu
Summary: The rapid development of shell biorefining in the past decade has seen an increasing application of ionic liquids (ILs) for catalyzing the conversion of marine biomass. However, due to the greater structural complexity of marine biomass, the methodological developments of ILs in this area have been limited. This study reviews the conversion of marine biomass using acidic ILs as catalysts, comparing their characteristics with lignocellulosic biomass and showing the structural effect of marine biomass on their conversion.
Article
Environmental Sciences
Claudio Carneiro Santana Junior, Michele Cristiane Diel Rambo, Reinaldo Francisco Teofilo, Wilson Junior Cardoso, Daniel Assumpcao Bertuol, Magale Karine Diel Rambo
Summary: This study validated the potential of green coconut biomass for the production of levulinic acid, achieving high yields through pretreatment and conversion reactions with different catalysts.
WASTE AND BIOMASS VALORIZATION
(2021)
Article
Computer Science, Interdisciplinary Applications
Heriberto Alcocer-Garcia, Juan G. Segovia-Hernandez, Eduardo Sanchez-Ramirez, Philip Tominac, Victor M. Zavala
Summary: The combustion of residual biomass creates environmental hazards and wastes economic opportunities. Producing specialty chemicals from this biomass offers a more attractive disposal option. Coordinating markets for recovering products from waste is essential for generating economic benefits for stakeholders in the supply chain.
COMPUTERS & CHEMICAL ENGINEERING
(2022)