Author
York Neubauer
Bio: York Neubauer is an academic researcher from Technical University of Berlin. The author has contributed to research in topics: Tar & Biomass. The author has an hindex of 6, co-authored 12 publications receiving 1586 citations.
Topics: Tar, Biomass, Char, Partial discharge, Dielectric
Papers
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01 Jan 2011
TL;DR: The wet pyrolysis process, also known as hydrothermal carbonization, opens up the field of potential feedstocks for char production to a range of nontraditional renewable and plentiful wet agricultural residues and municipal wastes as discussed by the authors.
Abstract: The carbonization of biomass residuals to char has strong potential to become an environmentally sound conversion process for the production of a wide variety of products. In addition to its traditional use for the production of charcoal and other energy vectors, pyrolysis can produce products for environmental, catalytic, electronic and agricultural applications. As an alternative to dry pyrolysis, the wet pyrolysis process, also known as hydrothermal carbonization, opens up the field of potential feedstocks for char production to a range of nontraditional renewable and plentiful wet agricultural residues and municipal wastes. Its chemistry offers huge potential to influence product characteristics on demand, and produce designer carbon materials. Future uses of these hydrochars may range from innovative materials to soil amelioration, nutrient conservation via intelligent waste stream management and the increase of carbon stock in degraded soils.
1,360 citations
TL;DR: In this paper, the authors proposed a direct liquefaction approach to convert complete plants into liquid fuels without gasification, which can be used for mobile applications made from fossil reserves but need to be replaced in not-to-far future.
Abstract: Reserves of fossil primary energy carriers are limited. Consequently liquid secondary energy carriers especially for mobile applications made from fossil reserves will not carry on forever but need to be replaced in a not-to-far future. Two substitution strategies are currently under investigation – the use of oil from plant seeds either directly or after chemical modification (biodiesel) or the gasification of complete plants, use of the product gases (mainly CO and H2) in a Fischer-Tropsch process with subsequent refining. A third possible pathway would be the so-called direct liquefaction, i.e., the conversion of complete plants into liquid fuels without gasification. This process is discussed and various technical implementations are critically evaluated in the present paper.
324 citations
TL;DR: In this article, the authors proposed a method for the generation of renewable fuels using a hydrothermal conversion process aiming at the generation renewable fuels, which requires no predrying and limited pretreatment of the biomas.
Abstract: Hydrothermal conversion processes aiming at the generation of renewable fuels have attracted much attention in recent years, because they require no predrying and limited pretreatment of the biomas...
84 citations
TL;DR: In this paper, an analytical tool for a nearly continuous analysis of gas-phase polycyclic aromatic hydrocarbons (PAH) based on laser-induced fluorescence was designed and built.
64 citations
TL;DR: In this article, the authors reviewed the recent developments in product gas cleaning technologies for these species and summarized the findings of the research project ‘Mop fan and electrofilter: an innovative approach for cleaning product gases from biomass gasification which was recently carried out by the authors.
Abstract: In general, the raw product gas of biomass gasification contains a range of minor species and contaminants, including particles, tar, alkali metals, chlorine, nitrogen compounds and sulphur compounds. This study reviews the recent developments in product gas cleaning technologies for these species and summarizes the findings of the research project ‘Mop fan and electrofilter: an innovative approach for cleaning product gases from biomass gasification’ which was recently carried out by the authors. The results of the project showed that combination of mop fan and electrofilter (ESP) has great potential in removing fine particles, tars and chemical contaminants in the product gas. Copyright , Oxford University Press.
38 citations
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TL;DR: Biomass is an important feedstock for the renewable production of fuels, chemicals, and energy, and it recently surpassed hydroelectric energy as the largest domestic source of renewable energy.
Abstract: Biomass is an important feedstock for the renewable production of fuels, chemicals, and energy. As of 2005, over 3% of the total energy consumption in the United States was supplied by biomass, and it recently surpassed hydroelectric energy as the largest domestic source of renewable energy. Similarly, the European Union received 66.1% of its renewable energy from biomass, which thus surpassed the total combined contribution from hydropower, wind power, geothermal energy, and solar power. In addition to energy, the production of chemicals from biomass is also essential; indeed, the only renewable source of liquid transportation fuels is currently obtained from biomass.
3,644 citations
TL;DR: Due to complexity of soil-water system in nature, the effectiveness of biochars on remediation of various organic/inorganic contaminants is still uncertain.
3,163 citations
TL;DR: A review of recent applications of biochars, produced from biomass pyrolysis (slow and fast), in water and wastewater treatment, and a few recommendations for further research have been made in the area of biochar development for application to water filtration.
1,738 citations
TL;DR: In this paper, the authors present a review of the current status of the hydrothermal liquefaction of biomass with the aim of describing the current state of the technology, which is a medium-temperature, high-pressure thermochemical process which produces a liquid product, often called bio-oil or bi-crude.
1,451 citations
01 Jan 2011
TL;DR: The wet pyrolysis process, also known as hydrothermal carbonization, opens up the field of potential feedstocks for char production to a range of nontraditional renewable and plentiful wet agricultural residues and municipal wastes as discussed by the authors.
Abstract: The carbonization of biomass residuals to char has strong potential to become an environmentally sound conversion process for the production of a wide variety of products. In addition to its traditional use for the production of charcoal and other energy vectors, pyrolysis can produce products for environmental, catalytic, electronic and agricultural applications. As an alternative to dry pyrolysis, the wet pyrolysis process, also known as hydrothermal carbonization, opens up the field of potential feedstocks for char production to a range of nontraditional renewable and plentiful wet agricultural residues and municipal wastes. Its chemistry offers huge potential to influence product characteristics on demand, and produce designer carbon materials. Future uses of these hydrochars may range from innovative materials to soil amelioration, nutrient conservation via intelligent waste stream management and the increase of carbon stock in degraded soils.
1,360 citations