Article
Environmental Sciences
Chuanshuai Chen, Ruili Yang, Xuexue Wang, Boyu Qu, Menglu Zhang, Guozhao Ji, Aimin Li
Summary: This study investigated the influence of torrefaction temperature on biomass and evaluated the quality of pellets. Results showed that 250 degrees C was the optimal torrefaction temperature for rice straw and rice husk, and the in-situ torrefied densified pellets had higher quality compared to raw pellets and ex-situ torrefied densified pellets. Additionally, the bonding mechanism was studied, revealing that in-situ torrefaction and densification facilitated the formation of self-locking and lignin migration between particles.
Article
Energy & Fuels
Kelly Roberta de Palma, Edson Tomaz, Antonio Soria-Verdugo, Maria Aparecida Silva
Summary: The study aims to understand the fusion behavior of sugarcane biomass ash and to propose solutions to minimize slagging and fouling issues using a mixture of biomass species and/or additive minerals. Experimental measurements and thermodynamic simulations helped derive the relationship between chemical composition and fusibility. The ashes are rich in SiO2, Al2O3, and Fe2O3, with different biomass species potentially leading to different ash fusion behaviors.
Article
Environmental Sciences
Hongbin Yan, Qi Zhang, Yunpu Wang, Xian Cui, Yuhuan Liu, Zhigang Yu, Shuming Xu, Roger Ruan
Summary: Microalgal biofilm cultivation using rice straw as carrier is a promising method for efficient microalgae production. The biomass productivity of unsterilized rice straw biofilm exceeds that of suspended culture. This study demonstrates the potential of using rice straw effectively as a carrier for microalgal biofilm, offering a new possibility for rice straw recycling.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Agricultural Engineering
Andre Aguiar, Thais Suzane Milessi, Daniella Regina Mulinari, Melina Savioli Lopes, Sirlene Maria da Costa, Rafael Garcia Candido
Summary: Sugarcane straw, accounting for one-third of the total sugarcane energy, has great potential for applications in energy generation and production of high-value bioproducts and biomaterials. Progress in processing sugarcane straw highlights the possibilities of obtaining valuable products and promoting environmental-friendly and cost-effective processes.
BIOMASS & BIOENERGY
(2021)
Article
Energy & Fuels
Hossein Beidaghy Dizaji, Thomas Zeng, Hieronymus Hoelzig, Jens Bauer, Gert Kloess, Dirk Enke
Summary: The study investigated ash transformation mechanisms in silica-rich biomass fuels, revealing the impact of impurities on the atomic structure of silica, leading to altered ash melting behavior and viscosity. Chemical water washing, acid leaching, and blending rice straw with rice husk were found to strongly influence the chemical composition of ashes and improve ash melting behavior.
Article
Construction & Building Technology
Eduardo Cesar Pachla, Debora Bretas Silva, Kassio Joe Stein, Ederli Marangon, Wang Chong
Summary: This study aimed to improve the thermoacoustic performance of cellular concrete by adding rice straw to rice husk, reducing compressive strength but increasing three-point bending strength, and improving sound absorption. Wetting-and-drying cycles could enhance the compressive strength of specimens, while longer curing times also contributed to increased durability.
CONSTRUCTION AND BUILDING MATERIALS
(2021)
Article
Energy & Fuels
Yan Ru Fang, Silu Zhang, Ziqiao Zhou, Wenjun Shi, Guang Hui Xie
Summary: This study estimates the bioenergy production potential and CO2 emission reduction benefits of utilizing crop straw for bioenergy production until 2030, providing valuable insights for policy formulation and bioenergy plant planning.
Article
Energy & Fuels
Yan Ru Fang, Silu Zhang, Ziqiao Zhou, Wenjun Shi, Guang Hui Xie
Summary: The research estimates the quantity of straw until 2030 and highlights the potential of producing various types of bioenergy from different types of straw to reduce CO2 emissions. The results of the study provide valuable insights for policymakers in formulating policies related to straw utilization and assists bioenergy plants in selecting the optimal production configurations.
Article
Energy & Fuels
Dinh Van Dung, Le Duc Thao, Le Duc Ngoan, Le Dinh Phung, Hynek Roubik
Summary: This study evaluated the effects of biochar produced from tropical biomass resources and different processing temperatures on in vitro rumen fermentation and methane production. The results showed that biomass resources and processing temperatures affected gas and methane production, as well as the digestibility of organic matter. Increasing processing temperatures resulted in lower gas and methane production. Additionally, biomass resources and processing temperatures also affected ammonia nitrogen concentrations.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Green & Sustainable Science & Technology
Bo Pang, Tong Zhou, Xue-Fei Cao, Bao-Cheng Zhao, Zhuohua Sun, Xi Liu, Yue-Ying Chen, Tong-Qi Yuan
Summary: This study proposes a viable strategy to combine rice straw and waste bamboo particles into bio-composites using green adhesives, which can replace traditional wood-particle boards and help economize on wood resources. The obtained bio-composites have good mechanical strength and water resistance, and can contribute to carbon sequestration from agro-industrial lignocellulose wastes.
JOURNAL OF CLEANER PRODUCTION
(2022)
Review
Energy & Fuels
Siti Norliyana Harun, Marlia Mohd Hanafiah, Noorashikin Md Noor
Summary: Unsustainable rice straw management can have negative environmental impacts, but utilizing rice straw for bioenergy production is a promising strategy for sustainable management. Life-cycle assessment (LCA) provides comprehensive information on the environmental effects of using rice straw for bioenergy, and it is suggested that other impact categories be evaluated to determine overall sustainability.
Article
Environmental Sciences
Ankumoni Saikia, Koushik Dutta, Debashree Bora, Biswajit Saha, Ajit Singh
Summary: Lignin has attracted much interest as a raw material for producing value-added materials due to its abundance and sustainability. This study presents a green and cost-effective method for the selective formation of acetosyringone from rice straw lignin. The synthesized acetosyringone was characterized using spectroscopic techniques and its molecular structure and purity were confirmed.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Multidisciplinary Sciences
Ebenezer Ampofo Sackey, Yali Song, Ya Yu, Haifeng Zhuang
Summary: This study focused on removing Basic Red 46 dye from aqueous solutions using biochars prepared from bamboo and rice straw biomass through batch experiments. Characterization of the biochars showed that rice straw biochar had higher adsorption efficiency and capacity compared to bamboo biochar, with adsorption increasing with higher temperature and pH levels. The mechanism of adsorption was identified as electrostatic interaction, with rice straw biochar showing greater adsorption capacity.
Article
Chemistry, Analytical
L. L. Z. Cueva, G. J. Griffin, L. P. Ward, S. Madapusi, K. Shah, R. Parthasarathy
Summary: This study investigates the pre-treatment of rice straw with chemical additives for biochar production. The optimized conditions result in increased biochar yield, higher heating value, and lower ash content.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Chemistry, Analytical
Tian Wang, Longfei Tang, Xi'ao Feng, Jianliang Xu, Lu Ding, Xueli Chen
Summary: The study found that adding pea starch (PS) can increase bio-oil yield and the proportion of CO, while carboxymethyl cellulose (CMC) has little impact on the pyrolysis of rice straw pellets. Furthermore, the introduction of Na has positive synergistic effects on the gasification of bio-char.
JOURNAL OF ANALYTICAL AND APPLIED PYROLYSIS
(2022)
Article
Green & Sustainable Science & Technology
Cameron Bracken, Nathalie Voisin, Casey D. Burleyson, Allison M. Campbell, Z. Jason Hou, Daniel Broman
Summary: This study presents a methodology and dataset for examining compound wind and solar energy droughts, as well as the first standardized benchmark of energy droughts across the Continental United States (CONUS) for a 2020 infrastructure. The results show that compound wind and solar droughts have distinct spatial and temporal patterns across the CONUS, and the characteristics of energy droughts are regional. The study also finds that compound high load events occur more often during compound wind and solar droughts than expected.
Article
Green & Sustainable Science & Technology
Ning Zhang, Yanghao Yu, Jiawei Wu, Ershun Du, Shuming Zhang, Jinyu Xiao
Summary: This paper provides insights into the optimal configuration of CSP plants with different penetrations of wind power by proposing an unconstrained optimization model. The results suggest that large solar multiples and TES are preferred in order to maximize profit, especially when combined with high penetrations of wind and photovoltaic plants. Additionally, the study demonstrates the economy and feasibility of installing electric heaters (EH) in CSP plants, which show a linear correlation with the penetration of variable energy resources.
Article
Green & Sustainable Science & Technology
M. Szubel, K. Papis-Fraczek, S. Podlasek
Article
Green & Sustainable Science & Technology
J. Silva, J. C. Goncalves, C. Rocha, J. Vilaca, L. M. Madeira
Summary: This study investigated the methanation of CO2 in biogas and compared two different methanation reactors. The results showed that the cooled reactor without CO2 separation achieved a CO2 conversion rate of 91.8%, while the adiabatic reactors achieved conversion rates of 59.6% and 67.2%, resulting in an overall conversion rate of 93.0%. Economic analysis revealed negative net present worth values, indicating the need for government monetary incentives.
Article
Green & Sustainable Science & Technology
Yang Liu, Yonglan Xi, Xiaomei Ye, Yingpeng Zhang, Chengcheng Wang, Zhaoyan Jia, Chunhui Cao, Ting Han, Jing Du, Xiangping Kong, Zhongbing Chen
Summary: This study investigated the effect of using nanofiber membrane composites containing Prussian blue-like compound nanoparticles (PNPs) to relieve ammonia nitrogen inhibition of rural organic household waste during high-solid anaerobic digestion and increase methane production. The results showed that adding NMCs with 15% PNPs can lower the concentrations of volatile fatty acids and ammonia nitrogen, and increase methane yield.
Article
Green & Sustainable Science & Technology
Zhong Ge, Xiaodong Wang, Jian Li, Jian Xu, Jianbin Xie, Zhiyong Xie, Ruiqu Ma
Summary: This study evaluates the thermodynamic, exergy, and economic performance of a double-stage organic flash cycle (DOFC) using ten eco-friendly hydrofluoroolefins. The influences of key parameters on performance are analyzed, and the advantages of DOFC over single-stage type are quantified.
Article
Green & Sustainable Science & Technology
Nicolas Kirchner-Bossi, Fernando Porte-Agel
Summary: This study investigates the optimization of power density in wind farms and its sensitivity to the available area size. A novel genetic algorithm (PDGA) is introduced to optimize power density and turbine layout. The results show that the PDGA-driven solutions significantly reduce the levelized cost of energy (LCOE) compared to the default layout, and exhibit a convex relationship between area and LCOE or power density.
Article
Green & Sustainable Science & Technology
Chunxiao Zhang, Dongdong Li, Lin Wang, Qingpo Yang, Yutao Guo, Wei Zhang, Chao Shen, Jihong Pu
Summary: In this study, a novel reversible liquid-filled energy-saving window that effectively regulates indoor solar radiation heat gain is proposed. Experimental results show that this window can effectively reduce indoor temperature during both summer and winter seasons, while having minimal impact on indoor illuminance.
Article
Green & Sustainable Science & Technology
Alessandro L. Aguiar, Martinho Marta-Almeida, Mauro Cirano, Janini Pereira, Leticia Cotrim da Cunha
Summary: This study analyzed the Brazilian Equatorial Shelf using a high-resolution ocean model and found significant tidal variations in the area. Several hypothetical barrages were proposed with higher annual power generation than existing barrages. The study also evaluated the installation effort of these barrages.
Article
Green & Sustainable Science & Technology
Francesco Superchi, Nathan Giovannini, Antonis Moustakis, George Pechlivanoglou, Alessandro Bianchini
Summary: This study focuses on the optimization of a hybrid power station on the Tilos island in Greece, aiming to increase energy export and revenue by optimizing energy fluxes. Different scenarios are proposed to examine the impact of different agreements with the grid operator on the optimal solution.
Article
Green & Sustainable Science & Technology
Peimaneh Shirazi, Amirmohammad Behzadi, Pouria Ahmadi, Sasan Sadrizadeh
Summary: This research presents two novel energy production/storage/usage systems to reduce energy consumption and environmental effects in buildings. A biomass-fired model and a solar-driven system integrated with photovoltaic thermal (PVT) panels and a heat pump were designed and assessed. The results indicate that the solar-based system has an acceptable energy cost and the PVT-based system with a heat pump is environmentally superior. The biomass-fired system shows excellent efficiency.
Article
Green & Sustainable Science & Technology
Zihao Qi, Yingling Cai, Yunxiang Cui
Summary: This study aims to investigate the operational characteristics of the solar-ground source heat pump system (SGSHPS) in Shanghai under different operation modes. It concludes that tandem operation mode 1 is the optimal mode for winter operation in terms of energy efficiency.
Article
Green & Sustainable Science & Technology
L. Bartolucci, S. Cordiner, A. Di Carlo, A. Gallifuoco, P. Mele, V. Mulone
Summary: Spent coffee grounds are a valuable biogenic waste that can be used as a source of biofuels and valuable chemicals through pyrolysis and solvent extraction processes. The study found that heavy organic bio-oil derived from coffee grounds can be used as a carbon-rich biofuel, while solvent extraction can extract xantines and p-benzoquinone, which are important chemicals for various industries. The results highlight the promising potential of solvent extraction in improving the economic viability of coffee grounds pyrolysis-based biorefineries.
Article
Green & Sustainable Science & Technology
Luiza de Queiroz Correa, Diego Bagnis, Pedro Rabelo Melo Franco, Esly Ferreira da Costa Junior, Andrea Oliveira Souza da Costa
Summary: Building-integrated photovoltaics, especially organic solar technology, are important for reducing greenhouse gas emissions in the building sector. This study analyzed the performance of organic panels laminated in glass in a vertical installation in Latin America. Results showed that glass lamination and vertical orientation preserved the panels' performance and led to higher energy generation in winter.
Article
Green & Sustainable Science & Technology
Zhipei Hu, Shuo Jiang, Zhigao Sun, Jun Li
Summary: This study proposes innovative fin arrangements to enhance the thermal performance of latent heat storage units. Through optimization of fin distribution and prediction of transient melting behaviors, it is found that fin structures significantly influence heat transfer characteristics and melting behaviors.