Operation of a Downdraft Gasifier Fueled with Source-Separated Solid Waste

Vigil, Samuel A.; Bartley, D.A.; Healy, R.; Tchobanoglous, G.

doi:10.1021/bk-1980-0130.ch019

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“…Lai and Krieger-Brockett (1992) studied the influence of waste feed properties on the devolatilization rate, composition, and rate of production of RDF pyrolysis products. Other studies refer Buekens and Schoeters, 1986;Rinker, 1980;Vigil et al, 1980; Ekstrom and Rensfelt, 1988;Rensfelt and Ekstrom, 1988;Murphy, 1989;Stahlberg et al, 1989). These works report information on product yields and characteristics as well as on technological aspects, but generally they lack in analyzing the problems from a fundamental point of view.…”

Section: Introductionmentioning

confidence: 98%

A Fundamental Study on Conventional Pyrolysis of a Refuse-Derived Fuel

Cozzani¹,

Nicolella²,

Petarca³

et al. 1995

Ind. Eng. Chem. Res.

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The pyrolysis behavior of a refuse-derived fuel (RDF) under heating conditions typical of conventional pyrolysis processes was investigated. Thermogravimetric analysis and differential scanning calorimetry were performed on RDF and on some materials which have been considered "key components" of the thermal degradation of RDF. The product fractions obtained by RDF pyrolysis runs in a laboratory-scale fixed bed reactor, at temperatures between 500 and 900 °C, were identified and characterized by different experimental techniques, including gas chromatographic analysis of gaseous products, ultimate analysis, scanning electron microscopy and internal surface area measurements of char. Gas, tar, and char global yields were determined as a function of reactor temperature. The influence of gas-phase secondary tar-cracking reactions on final gas composition was investigated. Overall kinetic parameters obtained by a simple kinetic model are compared to literature data.

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