Advanced Coal, Biomass and Waste Conversion Technologies

2020 ◽  
Vol 6 (1) ◽  
pp. 8
Author(s):  
Shuli Shu ◽  
Jamal Chaouki

Coal, biomass and waste, which are abundant, are considered to the foremost raw material that can potentially replace the depleting economically-viable oil resources and promote the energy and environment sustainability [...]

2011 ◽  
Vol 35 (2) ◽  
pp. 67-72 ◽  
Author(s):  
Joseph L. Conrad ◽  
M. Chad Bolding

Abstract Recent interest in producing energy from woody biomass has raised questions about the coexistence of wood-to-energy markets and the traditional forest products industry in Virginia. This study examined recent trends in the forest products industry and the wood-to-energy market, as well as the potential for competition between the two industries. Results indicate that the forest products industry has struggled recently, whereas wood-to-energy markets have expanded. Current opinion varies as to whether or not the wood-to-energy market will negatively affect the forest products industry. At present, 75% of Virginia's pulpmills are located within 50 miles of a wood-to-energy facility, and all pulpmills are within 75 miles. Recent trends in pulpwood prices, fuel chip prices, and Virginia law indicate that competition for raw material is unlikely in the short term. However, this research indicates that in the longer term, depending on government policies and technological progress in conversion technologies, competition between forest industry and wood-to-energy companies is possible.


2021 ◽  
Vol 02 ◽  
Author(s):  
Kinjal J. Shah ◽  
Satyendra Tripathi ◽  
Touseef Hussain ◽  
Zhaoyang You

Background: Scarcity of resources, the energy crisis, environmental pollution and climate change are the central challenges that people will have to face in the years to come. Nowadays, agricultural, food and industrial waste is generated in large quantities, which poses a serious problem in its management and disposal. Objective: Feedstocks play a vital role in solving energy and environmental problems. All renewable, biological substances that are used directly as fuel or converted into another form of energy or fuel products are referred to as feedstocks. Biomass is also a clean and renewable feedstock option; also be an excellent alternative to conventional fuels. Method: Renewable fuels are cleaner than traditional coal and petroleum, which reduces air pollution and greenhouse gas emissions. Various methods could be used to achieve sustainable development methods that not only lead to better waste management. Nevertheless, they could also generate industrially important materials, chemicals, fuels and valuable end products from waste. Results: This review provides an overview of the global scenario for the feedstock. In addition, this paper examines the role of feedstocks in solving energy and environmental issues. Conclusion: This paper sheds light on the issue of environmental impact in order to achieve overall sustainability. Finally, the merits of the feedstock technology prospects were addressed.


Profitability of a farm enterprise is determined in large part by the value output that is derived per unit of input. Typically, there is significant loss to the enterprise when the farmer makes all the input from investment in equipment, materials, and labor but does not have control over the market value of what is produced and distribution. A significant percentage of profits from farm production lies in the hands of “middle-men” or “turn-hands” and retailers by basically cleaning, packaging, transporting, and displaying them – with time of the seller involved. Other more involved opportunities in the value chain are mainly agro-processing items that would otherwise be wasted, rendering, and specialty or other products that transition from the primary to secondary and tertiary economic sectors. This can occur within the farm from waste conversion to raw material for use on the farm, and also outside the farm and into the marketplace.


Energies ◽  
2020 ◽  
Vol 13 (11) ◽  
pp. 2728 ◽  
Author(s):  
Beatriz M. Paredes-Sánchez ◽  
José P. Paredes-Sánchez ◽  
Paulino J. García-Nieto

The coal-producing territories in the world are facing the production of renewable energy in their thermal systems. The production of biocoal has emerged as one of the most promising thermo-energetic conversion technologies, intended as an alternative fuel to coal. The aim of this research is to assess how the model of biomass to biocoal conversion in mining areas is applied for thermal systems engineering. The Central Asturian Coal Basin (CACB; Spain) is the study area. The methodology used allows for the analysis of the resource as well as the thermo-energetic conversion and the management of the bioenergy throughout the different phases in a process of analytical hierarchy. This is carried out using a multiphase mathematical algorithm based on the availability of resources, the thermo-energetic conversion, and the energy management in the area of study. Based on the working conditions, this research highlights the potential of forest biomass as a raw material for biocoal production as well as for electrical and thermal purposes. The selected node operates through the bioenergy-match mode, which has yielded outputs of 23 MWe and 172 MWth, respectively.


2021 ◽  
Vol 13 (2) ◽  
pp. 794
Author(s):  
Nicolás M. Clauser ◽  
Giselle González ◽  
Carolina M. Mendieta ◽  
Julia Kruyeniski ◽  
María C. Area ◽  
...  

Sustainable development is the common goal of the current concepts of bioeconomy and circular economy. In this sense, the biorefineries platforms are a strategic factor to increase the bioeconomy in the economic balance. The incorporation of renewable sources to produce fuels, chemicals, and energy, includes sustainability, reduction of greenhouse gases (GHG), and creating more manufacturing jobs fostering the advancement of regional and social systems by implementing the comprehensive use of available biomass, due to its low costs and high availability. This paper describes the emerging biorefinery strategies to produce fuels (bio-ethanol and γ-valerolactone) and energy (pellets and steam), compared with the currently established biorefineries designed for fuels, pellets, and steam. The focus is on the state of the art of biofuels and energy production and environmental factors, as well as a discussion about the main conversion technologies, production strategies, and barriers. Through the implementation of biorefineries platforms and the evaluation of low environmental impact technologies and processes, new sustainable production strategies for biofuels and energy can be established, making these biobased industries into more competitive alternatives, and improving the economy of the current value chains.


2018 ◽  
Vol 3 (7) ◽  
Author(s):  
Pei-Yu Kuo ◽  
Ning Yan ◽  
Nicole Tratnik ◽  
Jing Luo

Abstract With the increased concern for climate change and depletion of fossil fuel resources, there is a growing trend to research and develop technologies that can use renewable biomass as the raw material for synthesizing chemical products. Bark, a largely available forestry biomass residue with attractive chemical compositions, is considered as a promising feedstock. This article summarizes our recent research and development work in deriving bark-derived adhesives and foams and various bark conversion technologies explored. Advantages and disadvantages associated with the conversion technologies and bark-based chemical products are discussed. Some future studies that can further promote commercial applications of these novel bio-based products are presented. These novel bark-derived products have potential to generate higher value return using the low-valued forestry residue materials while increasing the renewable content in the final chemical products for a higher sustainability.


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