Article
Mathematics
Muhammad Sajid, Apu Chowdhury, Ghulam Bary, Yin Guoliang, Riaz Ahmad, Ilyas Khan, Waqar Ahmed, Muhammad Farooq Saleem Khan, Aisha M. M. Alqahtani, Md. Nur Alam
Summary: Conversion of fructose to furan aldehydes is an important concept, with 5-hydroxymethyl furfural and levulinic acid being key bio-precursors that require complex production optimization processes.
JOURNAL OF MATHEMATICS
(2022)
Article
Agricultural Engineering
Nadiah Syafiqah Mohd Azlan, Chiew Lin Yap, Suyin Gan, Mohd Basyaruddin Abdul Rahman
Summary: Levulinic acid (LA) is a highly versatile platform chemical that can be used for the production of various value-added products. The sustainable production of LA from lignocellulosic biomass through the biorefinery route is attractive due to its lower cost and environmentally friendly process. However, there are several bottlenecks in large-scale biomass conversion, including the recalcitrance of raw material, low selectivity of catalyst, and limitation of mass transferring. Bifunctional catalysts, which combine Bronsted-Lowry acid and Lewis acid, have been shown to significantly improve the conversion of cellulose to LA, even in a one-pot conversion. This paper reviews the current state-of-art and development of various bifunctional catalysts and discusses their synergistic effects on the conversion of lignocellulosic biomass to LA. The paper also outlines methods for analyzing the synergistic effects and provides a tentative framework for bifunctional catalysts.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Microbiology
Christiane Ribeiro Janner Herrera, Vanessa Rodrigues Vieira, Tiago Benoliel, Clara Vida Galrao Correa Carneiro, Janice Lisboa De Marco, Lidia Maria Pepe de Moraes, Joao Ricardo Moreira de Almeida, Fernando Araripe Goncalves Torres
Summary: Sugarcane bagasse, a rich source of xylose, was utilized to produce xylonic acid with engineered Zymomonas mobilis. Expression of XDH gene from Paraburkholderia xenovorans led to the highest production, with deletion of xylose reductase gene further increasing yields. The findings suggest Z. mobilis could serve as a potential platform for organic acid production from cheap lignocellulosic biomass in biorefineries.
Article
Chemistry, Multidisciplinary
Jinke Hu, Qiong Wang, Wen Wang, Zihan Xu, Juan Fu, Qingli Xu, Zhongming Wang, Zhenhong Yuan, Fei Shen, Wei Qi
Summary: SCPR140-1, a stable solid acid catalyst synthesized from chloromethyl polystyrene resin, showed high selectivity for xylose production and effectively deconstructed the structure of corncob during catalytic pretreatment. Compared to other similar reports, SCPR140-1 was not only synthesized through a simpler process but also demonstrated more stable catalytic activity during multiple recycling runs.
Review
Chemistry, Physical
Xiaoqi Lin, Kaisen Jiang, Xuebin Liu, Dezhi Han, Qinqin Zhang
Summary: Lignocellulosic biomass is a renewable and abundant resource that can be converted into bio-based chemicals and fuels with high added value. Ionic liquids have many advantages in biomass pretreatment and conversion, and the design and improvement of catalysts and pretreatment solvents are crucial for achieving low-cost, efficient, and green biomass conversion.
JOURNAL OF MOLECULAR LIQUIDS
(2022)
Article
Chemistry, Physical
James M. Hammerton, Andrew B. Ross
Summary: The presence of inorganic salts significantly influences the reaction pathways and rate during hydrothermal carbonisation. The acidity of the cation and the basicity of the anion play a role in the rate of cellulose conversion. The anion is more pH-dependent and can protonate during the process, while the introduction of salts with Lewis acidity increases the concentration of low molecular weight compounds. Additionally, the addition of a second salt can modify the catalytic effect of the first salt, leading to changes in levulinic acid and hydrochar yields.
Article
Green & Sustainable Science & Technology
Bharath Velaga, Nageswara Rao Peela
Summary: A novel one-step process for producing levulinic acid from furfural over hierarchical zeolites in a microwave reactor is reported. The conversion and product distribution are influenced by formalin concentration, catalyst properties, and heating mode. A critical formalin concentration of 20 wt% is identified, with higher conversion and yield over H-zeolite compared to Na-zeolite.
ADVANCED SUSTAINABLE SYSTEMS
(2021)
Article
Energy & Fuels
Tirath Raj, K. Chandrasekhar, Rajesh Banu, Jeong-Jun Yoon, Gopalakrishnan Kumar, Sang-Hyoun Kim
Summary: The review comprehensively summarized recent updates and catalytic approaches for GVL production, as well as its applications in biomass deconstruction, and discussed advancements, challenges, and future perspectives in GVL-based biorefinery.
Article
Chemistry, Applied
Gabriel Morales, Juan A. Melero, Marta Paniagua, Clara Lopez-Aguado, Nora Vidal
Summary: This study investigates the solvent-free production of diphenolic acid (DPA) from levulinic acid (LA) and phenol using commercially available acid zeolites. Among the tested catalysts, Beta zeolite with a moderate aluminum content showed the best catalytic performance. By optimizing the reaction conditions, a high yield of DPA (over 70%) and LA conversion (around 77%) were achieved. Although the catalyst suffered from activity decay due to fouling, the starting catalytic performance could be restored by calcination in air.
Review
Agricultural Engineering
Maria Carolina Pereira Goncalves, Joao Paulo Romanelli, Ana Barbara Moulin Cansian, Emanoela Fernanda Queiroz Pucci, Jose Renato Guimaraes, Paulo Waldir Tardioli, Bradley A. Saville
Summary: This study conducted a literature review using the systematic mapping approach to examine the production and recovery of sugars from lignocellulosics for bioproduct synthesis. The results showed that classical pretreatment methods are still widely used, but there are also emerging eco-friendly strategies. Enzymatic hydrolysis stage mainly utilizes commercial enzyme cocktails, and physical separation systems and purification methods are employed for sugar separation. Ethanol is the most discussed sugar-derived product.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Review
Agricultural Engineering
Maria Carolina Pereira Goncalves, Joao Paulo Romanelli, Ana Barbara Moulin Cansian, Emanoela Fernanda Queiroz Pucci, Jose Renato Guimaraes, Paulo Waldir Tardioli, Bradley A. Saville
Summary: This study utilized systematic mapping to conduct a literature review on the production and recovery of sugars from lignocellulosics. The results showed that classical pretreatment methods are still commonly used, while eco-friendly technologies are less reported.
INDUSTRIAL CROPS AND PRODUCTS
(2022)
Article
Energy & Fuels
So-Yeon Jeong, Jae-Won Lee
Summary: This study investigated the production of maleic acid from xylose derived from yellow poplar wood using oxalic acid pretreatment. Furfural was obtained from the hydrolysate, with production increasing with higher H2SO4 concentration. Maleic acid yield was optimized at CSF 1.92 with 1.64% H2SO4, demonstrating the potential of using xylose from yellow poplar as a renewable substitute for fossil fuel-derived raw materials.
Article
Chemistry, Multidisciplinary
Vivian Pascal Willers, Barbara Beer, Volker Sieber
Summary: Facing increasing mobility, energy demand, and the need to mitigate climate change, developing sustainable and eco-friendly alternatives to fossil fuels is a crucial task for humanity. Biofuels and synthetic fuels show great potential as they can be integrated into existing processes, with synthetic fuels from CO2 and renewable energies being considered the next big step towards a sustainable and ecological future. In our study, we focus on the sustainable production of ethanol and isobutanol, two common biofuels, using methanol and xylose derived from CO2 and lignocellulosic waste streams. Through enzyme and reaction optimization, we successfully produced ethanol or isobutanol from xylose and methanol. Our research opens up the possibility of hybrid production of biofuels and chemicals from CO2 and lignocellulosic waste streams, providing an alternative to conventional routes that rely solely on CO2 or sugars.
Review
Biotechnology & Applied Microbiology
Renan Yuji Miyamoto, Ricardo Rodrigues de Melo, Isabelle Lobo de Mesquita Sampaio, Amanda Silva de Sousa, Edvaldo Rodrigo Morais, Cintia Regina Sargo, Leticia Maria Zanphorlin
Summary: Isomerases, particularly xylose isomerases (XIs), are enzymes widely studied for their role in industrial processes such as biotransforming xylose. The application of XIs in downstream metabolism of microorganisms is a smart strategy for producing value-added biochemicals with broad industrial applications. Recent advancements in XIs have expanded their range of applications, providing comprehensive insights into their mechanisms of action and potential for developing xylose bioprocesses.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2022)
Article
Chemistry, Applied
Ping Hu, Yexin Hu, Hui Li, Linzhen Li, Zhidan Xue, Di Wu, Juan Zhao, Changwei Hu, Liangfang Zhu
Summary: In this study, an efficient catalytic system consisting of a biphasic solvent of 2-methyltetrahydrofuran/water (MTHF/H2O) with NaCl and cetyltrimethylammonium bromide (CTAB) additives was used to convert cellulose to levulinic acid (LA) using a benzenesulfonic acid catalyst. It was found that both NaCl and CTAB promoted the depolymerization of cellulose and the formation of LA, but NaCl favored the formation of undesired humins while CTAB inhibited their formation. The combined use of NaCl and CTAB increased the LA yield and this method was effective with different types of lignocellulosic biomass.
CARBOHYDRATE POLYMERS
(2023)
Article
Agricultural Engineering
Shimin Kang, Jian Yu
BIOMASS & BIOENERGY
(2015)
Article
Energy & Fuels
S. Kang, J. Chang, J. Fan
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2015)
Article
Energy & Fuels
Shimin Kang, Jian Yu
Article
Engineering, Chemical
Shimin Kang, Jian Yu
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2015)
Article
Materials Science, Paper & Wood
Shimin Kang, Gang Zhang, Qifei Yang, Junling Tu, Xiaojuan Guo, Frank G. F. Qin, Yongjun Xu
Article
Energy & Fuels
S. Kang, X. Li, J. Fan, J. Chang
ENERGY SOURCES PART A-RECOVERY UTILIZATION AND ENVIRONMENTAL EFFECTS
(2016)
Article
Energy & Fuels
Shimin Kang, Yueyuan Ye, Qiaoya Li, Zepan Wang, Jionghao Tan
Article
Energy & Fuels
Shimin Kang, Gang Zhang, Xuesi Yang, Huibin Yin, Xiaobo Fu, Junxu Liao, Junling Tu, Xiangxuan Huang, Frank G. F. Qin, Yongjun Xu
Article
Polymer Science
Shimin Kang, Jinxia Fu, Gang Zhang, Wentao Zhang, Huibin Yin, Yongjun Xu
Article
Agronomy
Shimin Kang, Jian Yu
Article
Energy & Fuels
Shimin Kang, Jinxia Fu, Yueyuan Ye, Wenbo Liao, Yukui Xiao, Pingju Yang, Guiheng Liu
Article
Green & Sustainable Science & Technology
Shimin Kang, Jinxia Fu, Zhituan Deng, Shaohui Jiang, Guoyu Zhong, Yongjun Xu, Jianfeng Guo, Jingwen Zhou
Article
Engineering, Chemical
Kang Shimin, Chang Jie, Fan Juan
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2014)
Article
Chemistry, Multidisciplinary
Shimin Kang, Jian Yu
Article
Agricultural Engineering
G. Grasa, I. Martinez, R. Murillo
Summary: Gasification kinetics of six chars from residual origin were studied under relatively low temperature, low CO2, and high H2O partial pressures. The Random Pore Model (RPM) showed the best fit to experimental results, but the selection of the reaction model depended on the ash composition, specifically the presence of alkali and alkaline earth metals. Chars with ash content higher than 30% wt. were modeled with the RPM model, while chars with the highest K/Si ratio required modified versions of the RPM to accurately predict reaction rates. Textural properties played a key role in determining reaction parameters, such as the pre-exponential factor and activation energy, for chars with similar ash content and composition.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
V. Godvin Sharmila, Surya Prakash Shanmugavel, J. Rajesh Banu
Summary: Proper treatment and disposal of biomass waste is crucial to prevent environmental deposition and its negative impacts. Biofuel has emerged as a potential alternative to fossil fuels, reducing carbon emissions and meeting global energy demands. This review examines different biomass waste conversion techniques and explores the production of biofuels with zero carbon emissions. Research on anaerobic treatment, metabolic engineering, and artificial intelligence has been conducted to enhance biofuel production efficiency.
BIOMASS & BIOENERGY
(2024)
Review
Agricultural Engineering
Selvakumar Periyasamy, Adane Asefa Adego, P. Senthil Kumar, G. G. Desta, T. Zelalem, V. Karthik, J. Beula Isabel, Mani Jayakumar, Venkatesa Prabhu Sundramurthy, Gayathri Rangasamy
Summary: Valorizing agricultural waste into valuable products is crucial for environmental protection and bioeconomy advancement. Preprocessing of agricultural waste is a critical step to convert free carbohydrate molecules for final conversion, and factors such as biomass nature, feed loading, pH, temperature, and time influence the process. This review provides comprehensive information on agricultural waste availability, preprocessing techniques, and factors influencing performance.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Aqueel Ahmad, Ashok Kumar Yadav, Achhaibar Singh, Dinesh Kumar Singh
Summary: The study focuses on predicting and optimizing the yield of biogas production in an anaerobic digester using co-digestion. Experimental data was used to develop a machine learning-based prognostic model, and the Response Surface Methodology (RSM) was employed to optimize the parameters. The results demonstrate that RSM coupled with machine learning is an effective technique for modeling, predicting, and optimizing biogas production yield.
BIOMASS & BIOENERGY
(2024)
Article
Agricultural Engineering
Yijing Zhong, Wenxiang Zhai, Xinli Wei
Summary: This paper studies the thermal stability and decomposition of cork materials with and without silica aerogel filler. The results show that the decomposition is inhibited and the pyrolysis is significantly reduced with the addition of silica aerogel. This finding suggests that silica aerogel-infused cork may be a promising raw material for biofuel production with reduced environmental pollution.
BIOMASS & BIOENERGY
(2024)