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Thursday, May 14, 2020 | History

2 edition of Co-gasification of densified sludge and solid waste in a downdraft gasifier found in the catalog.

Co-gasification of densified sludge and solid waste in a downdraft gasifier

S. A Vigil

Co-gasification of densified sludge and solid waste in a downdraft gasifier

by S. A Vigil

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  • 1 Currently reading

Published by U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory, Center for Environmental Research Information [distributor] in Cincinnati, OH .
Written in English

    Subjects:
  • Sewage -- Purification -- Oxidation,
  • Sewage disposal plants -- United States,
  • Sewage sludge

  • Edition Notes

    StatementS.A. Vigil and G. Tchobanoglous
    ContributionsTchobanoglous, George, Municipal Environmental Research Laboratory
    The Physical Object
    Pagination5 p. :
    ID Numbers
    Open LibraryOL17968330M

    Aitchison, E.M. IEA Bioenergy Agreement Task XI: Municipal Solid Waste Conversion to Energy - End of Task Review. Akerblom, Lars. Energy combines for integrated production of ethanol and biogas (prel.). Bio-refineries & Bio-combines: World Bioenergy Conference and Exhibition on Biomass for Bioenergy, May , Jonkoping, Sweden.   Co-gasification of straw and sludge in LT-CFB gasifiers produced ashes with a high content of recalcitrant C, phosphorus (P) and potassium (K), a low content of heavy metals (especially cadmium) and an improved plant P availability compared to the mono-sludge ashes, thereby showing the best fertilizer qualities among all assessed materials. It.

      Pilot-scale gasification of woody biomass. Treesearch. Thomas Elder; Leslie H. Groom. The gasification of pine and mixed-hardwood chips has been carried out in a pilot-scale system at a range of gas flow rates. Consuming ~ kgh-1 of feedstock, the producer gas was composed of ~ dm3 m-3 carbon monoxide, 12 dm3 m-3 carbon dioxide, 30 dm3 m-3 methane and . No category; Mathematical modeling of municipal solid waste plasma gasification in a fixed-bed melting reactor $(function(){("Tooltip","widget_formSmash.

    It is clear that this book entitled ‘‘Syngas from Waste: Emerging Technologies’’ which contain high quality works from leading experts in the field, is intended as a textbook for postgraduate students, scientists, academy and industry researchers, and industry practitioners in the up-to-date topic of syngas production and applications. InTech-Solid Waste Management Through the Application of Thermal Methods. sewage sludge, cacao shells and willow as a reference. The methods used within the study are chemical analysis of fuel and ashes, determination of standard ash melting temperatures, a lab-scale bubbling fluidised bed gasifier and a circulating fluidised bed gasifier.


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Co-gasification of densified sludge and solid waste in a downdraft gasifier by S. A Vigil Download PDF EPUB FB2

EXPERIMENTAL GASIFICATION SYSTEM To investigate the co-gasification of densified sludge and solid waste, a pilot scale gasification system was designed and constructed.

The complete system consists of three subsystems: 1) batch fed downdraft gasifier, 2) data acquisition, and 3) solid waste shredding and densification. United States Environmental Protection Agency Municipal Environmental Research^ Laboratory Cincinnati OH Research and Development EPA/S August Project Summary Co-Gasification of Densified Sludge and Solid Waste in a Downdraft Gasifier S.

Vigil and G. Tchobanoglous Thermal gasification is a new pro- cess for the co-disposal of densified sludge and. Get this from a library.

Co-gasification of densified sludge and solid waste in a downdraft gasifier. [S A Vigil; George Tchobanoglous; Municipal Environmental Research Laboratory.]. waste. The ∞-disp個al of sludge and solid waste in a common facility is a potenti剖 soluti∞to both of these problems. The resul髓。f an experiment副 program to verify the feasibility of the gasificati∞process for the co-dispos割。f densified sludge and source separated solid waste are presented in this paper.

Within the gasifier the feedstock flowed downwards by gravity and air as a gasifying (or oxidizing) gas was introduced into the combustion zone of the reactor. Bottom ash samples were collected from the ash pit at the bottom of the fixed bed downdraft gasifier after the gasification of pure woodchip (PWG) and 20% sludge and 80% woodchip (20SWCG).Cited by: Gasification of sewage sludge has been studied by several authors using different types of gasification reactors including fixed-bed downdraft gasifier[,], fixed-bed updraft gasifier [ The co-gasification of coal with biomass is a promising and potential technology.

The present work aims at co-gasification of lignite and waste wood in downdraft gasifier. The advantages of co-gasification of woody biomass and coal have been reported elsewhere. The reasons to choose the waste wood as additive of supplemental fuel Cited by: The effects of different sewage sludge fractions in the mixture with woodchips on product yields, gas composition, gross heating value and gasification performance are investigated.

These results can help us better understand co-gasification of sewage sludge and biomass in a fixed-bed downdraft gasifier. Co-gasification of sewage sludge and woody biomass in a fixed-bed downdraft gasifier: Toxicity assessment of solid residues Article in Waste Management 36 December with 57 Reads.

Co-gasification of solid waste and coal is a very attractive and efficient way of generating power, but also an alternative way, apart from conventional technologies such as incineration and landfill, of treating waste materials.

(BGL) gasifier, while the gas clean-up block was based on cold gas purification. The competitive advantages of Cited by: Co-gasification of various kinds of waste with household waste helps to maximise resource recovery and to minimise final landfill amount. Additionally, the slag which is produced can be directly recycled (without any further post-treatment such as aging), not only as secondary materials for road construction, but also for fertilisers and.

Co-gasification of sewage sludge and woody biomass in a fixed-bed downdraft gasifier: Toxicity assessment of solid residues. Autores: Le Rong, Thawatchai Maneerung, Jingwen Charmaine Ng, Koon Gee Neoh, Boon Huat Bay, Yen Wah Tong, Yanjun Dai, Chi-Hwa Wang Localización: Waste management, ISSN-e X, Nº.

2,págs. Idioma: inglés. has been constructed to simulate conditions in a downdraft gasifier. Experiments are being conducted to study tar destruc-tion and how the process operating conditions affect the tar yield from different feedstocks.

The main objective is the identifica-tion of conditions for the production of tar free gas from downdraft gasifiers. Co-gasification of densified sludge and solid waste in a downdraft gasifier [] Vigil, S.

Cincinnati, OH: U.S. Environmental Protection Agency, Municipal Environmental Research Laboratory: Center for Environmental Research Information [distributor], Gasification Thus the key to gasifier design is to create conditions such that a) biomass is reduced to charcoal and, b) charcoal is converted at suitable temperature to produce CO and H2.

Gasification The oxidising medium is normally air, oxygen or steam. Inorganic residues and an oil-tar fraction are also produced in the process. knowledge gap in understanding the co-gasification process of biomass and coal, especially for the reaction kinetics of co-pyrolysis char gasification, which is the rate-controlling step within the entire gasification process.

In addition, there is no comprehensive mathematical model available in the literature on by: 6. Biomass/fossil fuel co-gasification could be a bridge between energy production based on fossil fuels and energy production based on renewable fuels.

In this work, CO₂ co-gasification of switchgrass with coal and fluid coke was conducted in a thermogravimetric analyzer at °C. Coal gasification kinetics were inhibited or enhanced, depending on the switchgrass concentration in the mixture Cited by:   Ong Z, Cheng Y, Maneerung T, Yao Z, Tong YW, Wang CH, Dai Y () Co-gasification of woody biomass and sewage sludge in a fixed-bed downdraft gasifier.

AICHE J – CrossRef Google Scholar Papari S, Hawboldt K () A review on the pyrolysis of woody biomass to bio-oil: focus on kinetic : Majid Saidi, Mohammad Hossein Gohari, Ali Talesh Ramezani.

Full text of "Syngas from waste: emerging technologies" See other formats. Successful feeding is critical to biomass utilization processes, but is difficult due to the heterogeneity, peculiar physical characteristics and moisture content of the biomass particles.

The objectives of this project were to define what limits screw feeding in terms of the mechanisms of blockage and to examine the effects of key properties like mean particle size, size distribution, shape. Gibbs energy of an ideal mixture [8].

The model assumes one solid-phase consisting of solid carbon and one gas-phase consisting of 70 species (combinations of C, H, O, N, S, and Cl elements). The simulations have been carried out Python codes using Cantera libraries [9] and thermodynamic properties of Burcat's database [10].Mohamed, A.H.

13 | Gasification | Adsorption kkkkk.Chinn M, Nokes S and Strobel H. Influence of Process conditions on end product formation from Clostridium thermocellum in solid substrate cultivation on Paper Pulp Sludge. Bioresource Technology. Corredor D, Bean S and Wang D. Pretreatment and enzymatic hydrolysis of sorghum fiber.

Cereal Chemistry 84(1)