A review of Drying Technologies for Refuse Derived Fuel (RDF) and Possible Implementation for Cement Industry

Zamrudy, Windi; Santosa, Sandra; Budiono, Arief; Naryono, Eko

doi:10.20902/ijctr.2019.120137

Cited by 2 publications

(1 citation statement)

References 8 publications

(9 reference statements)

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“…Their results showed that the daily efficiency of the solar air heater considered with 800 baffles was 29.91-51.69% higher than that of the conventional one. Zamrudy, W., et al (2019) reviewed different RDF drying technologies for subsequent use of RDF in the cement industry. It can be concluded from their review that the main drying equipment for RDF include a conveyor belt dryer, Torbed reactor, screw conveyor, indirect rotary dryer, and direct rotary drum dryer.…”

Section: Introductionmentioning

confidence: 99%

Drying of Refuse-Derived Fuel (RDF) using Solar Tunnel Dryer Integrated with Flat-Plate Solar Collector: An Experimental Approach

2020

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Solar energy can be effectively used for drying, especially when the cost of fuel used for conventional dryers is high. The drying of refuse-derived fuel (RDF) is a complicated process involving mass and heat transfer and depends on external variables such as humidity, temperature, and air velocity as well as internal variables, e.g., material surface, physical structure, chemical composition, size, and shape. Herein, a solar tunnel dryer integrated with a flat-plate solar collector was designed and fabricated at the Faculty of Engineering, Suez Canal University, Egypt. The experiments were performed during July 2019. The weather characteristics as well as the variation in moisture content with time were recorded continually. The results indicated that the maximum efficiencies of the solar collector were 46.6%, 53.4%, and 40.0% on 2, 4, and 6 July, 2019, respectively. Moreover, on these days, the moisture content of RDF decreased from 35.6% to 9.6%, from 28.3% to 8.5%, and from 43.5% to 14.0%. The dryer efficiency varied over 14.1–29.5% depending on the drying air stream temperature. The maximum dryer efficiencies recorded were 23.8%, 29.5%, and 25.8% on 2, 4, and 6 July, 2019, respectively.

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Section: Introductionmentioning

confidence: 99%

Drying of Refuse-Derived Fuel (RDF) using Solar Tunnel Dryer Integrated with Flat-Plate Solar Collector: An Experimental Approach

2020

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Fundamental drying and agglomeration experiments with bio-fraction and refuse derived fuel for the development of pyrolysis reactor feed

Faitli,

Abdulfattah,

Kioko

et al. 2024

Waste Manag Res

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The EU’s circular economy concept necessitates increasing the recycling ratio of municipal solid wastes. There are many existing mechanical–biological processing plants in Hungary for the preparation of residual municipal solid wastes (RMSWs). The two most important products of these plants are the bio-fraction and the refuse derived fuel (RDF). Currently, there are problems with both of these material streams in Hungary, since most of the bio-fraction is still landfilled, and the local thermal utilisation of the RDF has not been implemented yet. The high moisture content of the produced bio-fraction and RDF causes difficulties for the downstream operations; therefore, there is recent engineering interest in drying and agglomeration of these materials. The authors have carried out systematic and parallel drying and briquetting experimental series to study the effect of the material, material composition, mass (volume or surface) of the material, particle size distribution and pre-treatment with a cutting mill on drying intensity in a 1 m3 oven and their effect on briquettability by a laboratory briquette press. The initial slope of the relative moisture loss as function of time was determined. Process engineering design methods of convective hot air-drying can be further developed taking into account the research results. Results can be used for the design of the feed of a pyrolysis reactor once reactor experiments have provided the optimal feed requirements.

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A review of Drying Technologies for Refuse Derived Fuel (RDF) and Possible Implementation for Cement Industry

Cited by 2 publications

References 8 publications

Drying of Refuse-Derived Fuel (RDF) using Solar Tunnel Dryer Integrated with Flat-Plate Solar Collector: An Experimental Approach

Drying of Refuse-Derived Fuel (RDF) using Solar Tunnel Dryer Integrated with Flat-Plate Solar Collector: An Experimental Approach

Fundamental drying and agglomeration experiments with bio-fraction and refuse derived fuel for the development of pyrolysis reactor feed

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