Liquid fuel production from sewage sludge by catalytic conversion using sodium carbonate

For the production of liquid fuels and as a means of pollution control, sewage sludge was directly converted into heavy oils. The sewage sludge, having a moisture content of 75 wt %, was heated under pressurized nitrogen over the temperature range 250–340 °C in the presence of sodium carbonate. The...

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Bibliographic Details
Published in:Fuel (Guildford) 1987-08, Vol.66 (8), p.1150-1155
Main Authors: Yokoyama, Shin-ya, Suzuki, Akira, Murakami, Masanori, Ogi, Tomoko, Koguchi, Katsuya, Nakamura, Etsuro
Format: Article
Language:English
Subjects:
Applied sciences
catalysis
conversion
Exact sciences and technology
Other industrial wastes. Sewage sludge
Pollution
sewage sludge
Wastes
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Summary:For the production of liquid fuels and as a means of pollution control, sewage sludge was directly converted into heavy oils. The sewage sludge, having a moisture content of 75 wt %, was heated under pressurized nitrogen over the temperature range 250–340 °C in the presence of sodium carbonate. The yields and properties of the heavy oil produced depended strongly on the catalyst loading and reaction temperature. Liquid fuels having heating values of ≈ 33 MJ kg − 1 were obtained in 50 wt % yields on an organic basis. The energy balance of this liquefaction process is briefly discussed.
ISSN:0016-2361
1873-7153
DOI:10.1016/0016-2361(87)90315-2