Article
Energy & Fuels
Muhammad Irfan, Aimin Li, Lei Zhang, Jianhua Liu, Tanzeel Javaid Aini Farooqi, Muhammad Javid, Abdul Rauf
Summary: In this study, waste tire-derived char was used as a support material for developing Ni-Fe-based catalysts, which significantly enhanced the performance in wet MSW catalytic conversion by boosting H-2 concentration, dry gas yield, and H-2 yield while reducing tar content. The tar analysis revealed a significant transformation in chemical composition with the application of catalysts. This work highlights the potential of utilizing waste tire-derived char as an effective and inexpensive support material for developing catalysts for MSW conversion.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Energy & Fuels
Yun Liu, Yuan Zhang, Yu-qing Zhang, Lian-sheng Chen, Hai-ying Li, Hui-min Liu
Summary: The study investigated the effects of pyrolysis heating rate on the char structure and CO2 gasification reactivity of energy crops, revealing that bio-char obtained at a rapid heating rate had more structural defects and carbon crystallite imperfections, leading to higher gasification reactivity. However, this also resulted in a decrease in crystallization size, graphitization, and aromatization degree.
Article
Energy & Fuels
Anabel Fernandez, Paula Sette, Marcelo Echegaray, Jose Soria, Daniela Salvatori, German Mazza, Rosa Rodriguez
Summary: The sequential process of polyphenol extraction from agro-industrial bio-wastes and pyrolysis/gasification of the residual solid fraction (RSF) aims to upgrade bio-waste to fuel and chemicals. The extraction process yielded extracts rich in sugar, organic acids, and bioactive compounds. The pyro-gasification kinetics of the RSF were investigated, and the thermodynamic parameters were determined. The RSF from the three bio-wastes showed acceptable characteristics as a biofuel feedstock.
BIOMASS CONVERSION AND BIOREFINERY
(2022)
Article
Green & Sustainable Science & Technology
Mohamed E. El-Hefnawy, Sultan Alhayyani, Ali Ismail, Mohsen El-Sherbiny, Mamdouh Al-Harbi, Abdelfatah Abomohra, Mohamed Sakran, Nahla Zidan
Summary: The efficiency of microalgae cultivation on aqueous phase produced from (Co-)hydrothermal liquefaction of seaweed waste was evaluated. The highest bio-oil yield of 42.21% was obtained from HTL of microalgal biomass at 250 degrees C for 60 min. Aq-LP from microalgal biomass had the highest organic load, while that from seaweed residue had higher mineral ion content. Co-HTL enriched the Aq-LP with nutrients from both feedstocks, resulting in a 10.3% higher biomass yield.
JOURNAL OF CLEANER PRODUCTION
(2023)
Review
Biotechnology & Applied Microbiology
Prangan Duarah, Dibyajyoti Haldar, Reeta Rani Singhania, Cheng-Di Dong, Anil Kumar Patel, Mihir Kumar Purkait
Summary: As tea consumption continues to rise, so does the production of biomass waste during the harvesting process. Tea waste (TW), including stems, leaves, and buds, has proven beneficial in energy generation, wastewater treatment, and pharmaceuticals. Conversion procedures such as pyrolysis, anaerobic digestion, and gasification efficiently recover energy from low- and medium-calorific value fuels. TW-derived biochar and activated carbon are promising adsorbents, while TW also shows potential in synthesizing phytochemicals. This review provides an overview of the conversion procedures and applications of TW, offering a comprehensive assessment of its sustainable use as a renewable resource.
CRITICAL REVIEWS IN BIOTECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Anis Atikah Ahmad, Mohd Azmier Ahmad, Umi Fazara Md Ali, Khoo Ken
Summary: Due to global energy crisis and economic issues, biomass has gained global interest as an alternative to non-renewable activated carbon (AC) produced from coal. Biomass gasification has become a market focus and is predicted to reach USD 126 billion by 2023. A critical concern for gasification plants is the handling of char residues, which are currently treated as waste. This review article evaluates the characteristics of gasification char (GC) for adsorption processes and summarizes recent studies on adsorption using GC.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Green & Sustainable Science & Technology
Abhijeet Anand, Shivangi Pathak, Vivek Kumar, Priyanka Kaushal
Summary: This study investigates the potential of using biochar produced from crop residues as a substitute for coal in Indian thermal power plants. The results show that co-firing biochar with coal can reduce coal consumption and CO2 emissions in TPPs, and the cost of biochar conversion facilities is lower than that of new biomass to electricity generation facilities.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Thermodynamics
Ruochen Wu, Jacob Beutler, Larry L. Baxter
Summary: This investigation examines the trends in biomass char diameter during gasification using continuous particle size data and a theoretical model to describe the variations. The model captures the qualitative and most of the quantitative variation in the data.
Article
Agricultural Engineering
Abid Farooq, Gwang Hoon Rhee, Im-Hack Lee, Moonis Ali Khan, See Hoon Lee, Sang-Chul Jung, Byong-Hun Jeon, Wei-Hsin Chen, Young-Kwon Park
Summary: This study explores the production of biohydrogen from waste furniture through catalytic steam gasification with bio-char catalysts. It found that raw bio-char showed the highest H-2 selectivity in the gasification experiment, indicating its potential as a solution for eco-friendly hydrogen production.
BIORESOURCE TECHNOLOGY
(2021)
Review
Environmental Sciences
Amir Hossein Alaedini, Haniyeh Kazemi Tourani, Majid Saidi
Summary: This paper discusses the use of catalyst in waste-to-energy (WtE) conversion methods, introduces gasification technology, and explores the integration of gasification products with solid oxide fuel cells (SOFCs) into integrated gasification fuel cell (IGFC) systems. This approach allows for the transformation of waste into clean and renewable energy, addressing the energy demand and waste management issues.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Thermodynamics
Paulina Copik, Agnieszka Korus, Andrzej Szlek, Mario Ditaranto
Summary: The increased urbanization rate has led to an increase in waste generation, requiring rapid development and implementation of optimal waste management strategies. This study investigated the thermal decomposition of spent coffee grounds and textiles under different atmospheres using various analytical techniques. The results showed differences in the calorific pyrolytic gas yield and combustion performance of the waste materials. The findings contribute to a better understanding of thermochemical degradation of waste and the development of optimal waste utilization routes.
Article
Agricultural Engineering
S. P. Iglesias, M. R. Miyazaki, A. P. Mariano, T. T. Franco
Summary: Techno-economic analysis was conducted on the production of bio-oil from Eucalyptus grandis residues in Sao Paulo, Brazil, showing potential for economically viable centralized biorefineries. The study found that plant capacity has the most significant impact on the minimum selling price (MSP) of bio-oil, with the production able to achieve high net present value (NPV) and internal rate of return (IRR) indicators.
INDUSTRIAL CROPS AND PRODUCTS
(2021)
Review
Engineering, Environmental
Arjay A. Arpia, Wei-Hsin Chen, Su Shiung Lam, Patrick Rousset, Mark Daniel G. de Luna
Summary: The study reviews the application of MW-assisted heating for biomass pretreatment, biofuel, and bioenergy production, showing significant potential in increasing product yield and improving product properties.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Energy & Fuels
Bo Wang, Fanfan Xu, Xin Wang, Jun Li, Yongyi Song, Yingyun Qiao, Yuanyu Tian
Summary: This study provides a comprehensive comparative investigation on feedstock pyrolysis and char gasification performance of typical forestry biomass from Northeast Asia. The results showed that different forestry biomass has close thermal decomposition characteristics, and Salicaceae char has better gasification performance than Pinaceae char due to its high AAEMs content.
Article
Energy & Fuels
Bo Wang, Fanfan Xu, Xin Wang, Jun Li, Yongyi Song, Yingyun Qiao, Yuanyu Tian
Summary: The present study provides a comprehensive comparative investigation on the feedstock pyrolysis and char gasification performance of typical forestry biomass from Northeast Asia. The results show that different forestry biomass has similar thermal decomposition characteristics, and the performance of Salicaceae is better than that of Pinaceae in terms of pyrolysis and char gasification.