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Author

Christina G. Vassileva

Bio: Christina G. Vassileva is an academic researcher from Bulgarian Academy of Sciences. The author has contributed to research in topics: Coal & Fly ash. The author has an hindex of 27, co-authored 42 publications receiving 6522 citations.
Topics: Coal, Fly ash, Biomass, Pyrite, Illite

Papers
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Journal ArticleDOI
01 May 2010-Fuel
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.

1,792 citations

Journal ArticleDOI
01 Apr 2012-Fuel
TL;DR: An extended overview of the organic and inorganic phase composition of biomass was conducted in this article, where reference peer-reviewed data and own investigations for various minor organic components and minerals, and modes of element occurrence identified in biomass were also applied and organized to describe the biomass systematically.

778 citations

Journal ArticleDOI
01 Mar 2013-Fuel
TL;DR: An extended overview of the phase-mineral and chemical composition and classification of biomass ash (BA) was conducted in this paper, where reference peer-reviewed data including phasemineral composition and properties of BAs plus own investigations were used to describe and organise the BA system.

758 citations

Journal ArticleDOI
15 Oct 2015-Fuel
TL;DR: An extended overview of the advantages and disadvantages of biomass composition and properties for biofuel application was conducted based on reference peer-reviewed data plus own investigations as mentioned in this paper, which showed that the major environmental, economic and social benefits appeared to compensate the technological and other barriers caused by the unfavourable composition of biomass.

462 citations

Journal ArticleDOI
01 Mar 2013-Fuel
TL;DR: In this article, an extended overview of the complex phase-mineral and chemical composition and properties of biomass ash (BA) was conducted in Part 1 of the present work and the potential application of BA using the above classification approach is described in the present Part 2.

452 citations


Cited by
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Journal ArticleDOI
TL;DR: The notion of sustainability is introduced through discussion of the energy and environmental costs of state-of-the-art lithium-ion batteries, considering elemental abundance, toxicity, synthetic methods and scalability.
Abstract: Energy storage using batteries offers a solution to the intermittent nature of energy production from renewable sources; however, such technology must be sustainable. This Review discusses battery development from a sustainability perspective, considering the energy and environmental costs of state-of-the-art Li-ion batteries and the design of new systems beyond Li-ion. Images: batteries, car, globe: © iStock/Thinkstock.

5,271 citations

Journal ArticleDOI
01 May 2010-Fuel
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.

1,792 citations

Journal ArticleDOI
TL;DR: A broad review of the state-of-the-art biomass pyrolysis research can be found in this article, where three major components (cellulose, hemicellulose and lignin) are discussed in detail.

1,613 citations

Journal ArticleDOI
TL;DR: In this paper, several aspects which are associated with burning biomass in boilers have been investigated such as composition of biomass, estimating the higher heating value of biomass and comparison between biomass and other fuels.
Abstract: Currently, fossil fuels such as oil, coal and natural gas represent the prime energy sources in the world. However, it is anticipated that these sources of energy will deplete within the next 40–50 years. Moreover, the expected environmental damages such as the global warming, acid rain and urban smog due to the production of emissions from these sources have tempted the world to try to reduce carbon emissions by 80% and shift towards utilizing a variety of renewable energy resources (RES) which are less environmentally harmful such as solar, wind, biomass etc. in a sustainable way. Biomass is one of the earliest sources of energy with very specific properties. In this review, several aspects which are associated with burning biomass in boilers have been investigated such as composition of biomass, estimating the higher heating value of biomass, comparison between biomass and other fuels, combustion of biomass, co-firing of biomass and coal, impacts of biomass, economic and social analysis of biomass, transportation of biomass, densification of biomass, problems of biomass and future of biomass. It has been found that utilizing biomass in boilers offers many economical, social and environmental benefits such as financial net saving, conservation of fossil fuel resources, job opportunities creation and CO 2 and NO x emissions reduction. However, care should be taken to other environmental impacts of biomass such as land and water resources, soil erosion, loss of biodiversity and deforestation. Fouling, marketing, low heating value, storage and collections and handling are all associated problems when burning biomass in boilers. The future of biomass in boilers depends upon the development of the markets for fossil fuels and on policy decisions regarding the biomass market.

1,293 citations

Journal ArticleDOI
TL;DR: In this paper, the authors present a review of coal fly ash at the global level, focusing on its current and potential applications, including use in the soil amelioration, construction industry, ceramic industry, catalysis, depth separation, zeolite synthesis, etc.

1,167 citations