Assessment of bacteria and virus emissions at a refuse derived fuel plant and other waste handling facilities /

Mode of access: Internet.

Viability study of automobile shredder residue as fuel

Car Fluff samples collected from a shredding plant in Italy were classified based on particle size, and three different size fractions were obtained in this way. A comparison between these size fractions and the original light fluff was made from two different points of view: (i) the properties of each size fraction as a fuel were evaluated and (ii) the pollutants evolved when each size fraction was subjected to combustion were studied. The aim was to establish which size fraction would be the most suitable for the purposes of energy recovery. The light fluff analyzed contained up to 50 wt.% fines (particle size < 20 mm). However, its low calorific value and high emissions of polychlorinated dioxins and furans (PCDD/Fs), generated during combustion, make the fines fraction inappropriate for energy recovery, and therefore, landfilling would be the best option. The 50–100 mm fraction exhibited a high calorific value and low PCDD/F emissions were generated when the sample was combusted, making it the most suitable fraction for use as refuse-derived fuel (RDF). Results obtained suggest that removing fines from the original ASR sample would lead to a material product that is more suitable for use as RDF.

European refuse-fired energy systems : evaluation of design practices /

Mode of access: Internet.

San Diego County demonstrates pyrolysis of solid waste : to recover liquid fuel, metals, and glass /

Grant No. S-801588.

Scientific and technological aspects of fixed bed biomass gasification

In recent years new emphasis has been placed on problems of the environmental aspects of waste disposal, especially investigating alternatives to landfill, sea dumping and incineration. There is also a strong emphasis on clean, economic and efficient processes for electric power generation. These two topics may at first appear unrelated. Nevertheless, the technological advances are now such that a solution to both can be combined in a novel approach to power generation based on waste-derived fuels, including refuse-derived fuel (RDF) and sludge power (SP) by utilising a slagging gasifier and advance fuel technology (AFT). The most appropriate gasification technique for such waste utilisation is the British Gas/Lurgi (BGL) high pressure, fixed bed slagging gasifier where operation on a range of feedstocks has been well-documented. This gasifier is particularly amenable to briquette fuel feeding and, operating in an integrated gasification combined cycle mode (IGCC), is particularly advantageous. Here, the author details how this technology has been applied to Britain's first AFT-IGCC Power Station which is now under development at Fife Energy Ltd., in Scotland, the former British Gas Westfield Development Centre.

喷流-移动床垃圾衍生燃料热解燃烧特性研究

垃圾的处置已成为全球性环境问题。与填埋法相比，焚烧、热解和气化等热处理法具有减容、减量和能源化利用等优点。如何控制垃圾焚烧过程中HCI、二恶英和未燃尽碳氢化合物等污染物的排放也引起越来越多国家的关注。采用先热解（或气化）再气相燃烧的方法以及对垃圾预处理保持垃圾组成相对稳定的RDF技术是减少二次污染的有效手段。喷动技术能够用相对较小气量流化较粗大颗粒，是进行RDF热解的较佳选择。但RDF具有密度小、流动性差等特点，考虑减少空气量和改善RDF流动性，在喷动床中水平引入辅助气，称为"喷流一移动床"。本论文首先在室温下对喷流一移动床的流体力学特性进行了研究。结果表明，水平辅助气的引入可以降低中心最小喷动气速，调控喷泉高度，提高环流区颗粒的流动速度，增大颗粒的循环流量。在此基础上，根据先部分燃烧部分热解后气相燃烧以及自热型的原则，设计了下部为喷流一移动床热解室上部为气相燃烧室的两段式RDF热解燃烧反应器，并利用实验室内制备的RDF对该反应器的运行特性进行了评价。论文对喷动空气量和辅助空气量对热解室温度分布、气体分布，二次空气对燃烧室温度分布以及CO和NOx的释放特性的影响进行了研究，然后对有机氯（PVC）和无机氯（NaCI）产生Hcl特性、Ca（OH）2对HCI的脱除特性及机理进行了研究。实验结果表明，RDF可以成功地进行自热型的先热解后气相燃烧，通过改变空气／燃料比可以控制热解室温度，水平辅助气的引入可以使热解室轴向温度分布更加均匀，热解室中可以得到O2含量低于2v％热解气体，热解气体在燃烧室中能完全燃烧。二次空气能够控制燃烧室温度以及Co和NOx的排放。PVC中氯能产生较大数量的HCI外,NaCl同样也可生成HCl；温度对PVC生成HCI量的影响很小，而对NaCI却起主要影响作用。漓温不利于钙化物与HCI反应的进仃，同时CaC12在高温时与石英砂(SiO2)、水蒸汽反应产生HCl，因此Ca（OH）2的脱氯效率会降低。

日本垃圾衍生燃料(RDF)的研究开发

综述垃圾衍生燃料（ Refuse Derived Fuel��� R D F）的性能、研究开发概况，介绍了日本几个有代表性的垃圾衍生燃料生产利用设备

Small modular incinerator systems with heat recovery : a technical, environmental, and economic evaluation /

November 1979.

Markets and technology for recovering energy from solid waste /

Bibliography: p. 30-31.

Baltimore demonstrates gas pyrolysis : resource recovery from solid waste /

Mode of access: Internet.

Proceedings of the Fifth National Congress : Waste Management Technology and Resource & Energy Recovery /

Includes bibliographical references.

Inventory of biomass facilities in Illinois /

Includes index.

Supercritical water gasification of RDF and its components over RuO2/γ-Al2O3 catalyst:new insights into RuO2 catalytic reaction mechanisms

Five samples including a composite refuse derived fuel (RDF) and four combustible components of municipal solid wastes (MSW) have been reacted under supercritical water conditions in a batch reactor. The reactions have been carried out at 450 °C for 60 min reaction time, with or without 20 wt% RuO2/gamma-alumina catalyst. The reactivities of the samples depended on their compositions; with the plastic-rich samples, RDF and mixed waste plastics (MWP), giving similar product yields and compositions, while the biogenic samples including mixed waste wood (MWW) and textile waste (TXT) also gave similar reaction products. The use of the heterogeneous ruthenium-based catalyst gave carbon gasification efficiencies (CGE) of up to 99 wt%, which was up by at least 83% compared to the non-catalytic tests. In the presence of RuO2 catalyst, methane, hydrogen and carbon dioxide became the dominant gas products for all five samples. The higher heating values (HHV) of the gas products increased at least two-fold in the presence of the catalyst compared to non-catalytic tests. Results show that the ruthenium-based catalyst was active in feedstock steam reforming, methanation and possible direct hydrogenolysis of C-C bonds. This work provides new insights into the catalytic mechanisms of RuO2 during SCWG of carbonaceous materials, along with the possibility of producing high yields of methane from MSW fractions.