Journal ArticleDOI
Biomass combustion systems: A review on the physical and chemical properties of the ashes
Leonel J. R. Nunes,João C. O. Matias,Joao P. S. Catalao,Joao P. S. Catalao,Joao P. S. Catalao +4 more
TLDR
In this article, the characteristics of the ashes derived from the combustion of biomass, with particular attention paid to the chemical transformations at high temperatures, as well as its effect on the combustion equipment.Abstract:
Biomass as an energy source contributes to a decrease in the dependence on imported fossil fuels, while at the same time, adding value to the countries where biomass fuel sources thrive, in addition to providing a source of renewable energy. Knowledge of the behaviour of fuel is essential in order to design and operate equipment safely and efficiently. In particular, knowledge about mineral content is essential because the ashes play an important role in the dynamics of the generation system. Through knowledge of the chemical composition and physical properties of the ashes, it is possible to predict the tendency to form deposits in the boiler components, as well as their potential to cause corrosion, erosion and abrasion. The behaviour of the ashes in the system is highly dependent on fuel, particularly when it comes from industrial waste or energy crops. These fuels have a higher mineral content, particularly sodium (Na), potassium (K), phosphorous (P) and chloride (Cl). They also have higher ash content with a low melting point and high corrosion potential. This paper focuses on the characteristics of the ashes derived from the combustion of biomass, with particular attention paid to the chemical transformations at high temperatures, as well as its effect on the combustion equipment. Emphasis is placed on the potential problems that occur when biomass-burning technologies are used for energy crops, in order to avoid catastrophic failures. It concludes with recommendations for the management, control and prevention of problems associated with ash.read more
Citations
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Journal ArticleDOI
Thermochemical processing of sewage sludge to energy and fuel: Fundamentals, challenges and considerations
TL;DR: In this article, the options of converting sewage sludge to energy and fuel via three main thermochemical conversion processes namely pyrolysis, gasification and combustion are reviewed, and various alternative approaches deserving further consideration, such as the incorporation of pre-processing and co-utilization, are discussed.
Journal ArticleDOI
Review of physicochemical properties and analytical characterization of lignocellulosic biomass
Junmeng Cai,Yifeng He,Xi Yu,Scott W. Banks,Yang Yang,Xingguang Zhang,Yang Yu,Ronghou Liu,Anthony V. Bridgwater +8 more
TL;DR: In this paper, a comprehensive review of physicochemical properties of lignocellulosic biomass, including particle size, grindability, density, flowability, moisture sorption, thermal properties, proximate analysis properties, elemental composition, energy content and chemical composition, is presented.
Journal ArticleDOI
Ash contents and ash-forming elements of biomass and their significance for solid biofuel combustion
Stanislav V. Vassilev,Stanislav V. Vassilev,Christina G. Vassileva,Song Yuncai,Wen-Ying Li,Jie Feng +5 more
TL;DR: In this paper, an extended overview of the ash contents and ash-forming elements of biomass and their significance for solid biofuel combustion was conducted based on reference peer-reviewed data plus own investigations.
Journal ArticleDOI
Potential of biomass for bioenergy in Pakistan based on present case and future perspectives
Salman Raza Naqvi,Sana Jamshaid,Muhammad Naqvi,Wasif Farooq,Wasif Farooq,Muhammad Bilal Khan Niazi,Zaeem Aman,Muhammad Zubair,Majid Ali,Muhammad Shahbaz,Abrar Inayat,Waheed Afzal +11 more
TL;DR: In this article, future energy security and environmental issues are major driving forces for increased biomass utilization globally and especially in developing countries like Pakistan, especially in the developing countries of South Asia.
Journal ArticleDOI
Methanation of syngas from biomass gasification: An overview
TL;DR: In this article, a review sheds light on the development of biomass gasification and syngas methanation, and some representative large-scale and commercial plants and companies for the latter are compared and discussed in details.
References
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Journal ArticleDOI
An overview of the chemical composition of biomass
TL;DR: An extended overview of the chemical composition of biomass was conducted in this article, where reference peer-reviewed data for chemical composition was used to describe the biomass system, including traditional and complete proximate, ultimate and ash analyses.
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Low-temperature fabrication of high-performance metal oxide thin-film electronics via combustion processing
TL;DR: Combustion processing is now reported as a new low-temperature route for the deposition of diverse metal oxide films, and high-performance transistors are demonstrated using this method as discussed by the authors.
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Life cycle assessment of building materials: Comparative analysis of energy and environmental impacts and evaluation of the eco-efficiency improvement potential
TL;DR: In this article, the authors present the results of an LCA study comparing the most commonly used building materials with some eco-materials using three different impact categories, and propose guidelines for materials selection in the eco-design of new buildings and rehabilitation of existing buildings.
Journal ArticleDOI
Oxy-fuel combustion of pulverized coal: Characterization, fundamentals, stabilization and CFD modeling
TL;DR: Oxy-coal combustion has generated significant interest since it was proposed as a carbon capture technology for newly built and retrofitted coal-fired power plants, and numerical models for sub-processes are also used to examine the differences between combustion in an oxidizing stream diluted by nitrogen and carbon dioxide as mentioned in this paper.
Journal ArticleDOI
Geochemistry of trace elements in Chinese coals: A review of abundances, genetic types, impacts on human health, and industrial utilization
TL;DR: The background values of trace elements were dominated by sediment source regions in coal-bearing strata in China as mentioned in this paper, and the genetic types for trace-element enrichment of Chinese coals include source-rock- controlled, marine-environment-controlled, hydrothermal-fluid-controlled (including magmatic-, low-temperature-hydrothermalfluid-, and submarine-exhalation-controlled subtypes), groundwater-controlled and volcanic-ash-controlled.