Development of end-market uses for sludge derived oils
- Wastewater Technology Centre, Ontario (Canada)
- Canada Centre for Mineral and Energy Technology, Ontario (Canada)
- National Research Council of Canada, Ontario (Canada); and others
Pyrolytic processes can be utilized to convert organic materials into solid and liquid fuels. The economic viability of most of these processes will be greatly affected by the end-use market for the oil, in terms of both a guaranteed outlet for the product and the potential revenue. Since these oils are not conventional products, significant effort may be required to establish firm markets. The {open_quotes}Oil from Sludge{close_quotes} (OFS) technology developed by the Wastewater Technology Centre (WTC) has been shown to produce oil yields ranging from 10 to 30% (on a dry weight basis) from dried sewage sludge. Efforts over the last several years have focused on developing high-value, non-combustion uses for the oil, primarily in the asphalt industry. Two applications which have shown significant promise are as an asphalt antistripping agent and as an additive for recycling aged asphalt. This paper will focus on the antistripping application. This research has been a joint effort of the WTC, the Canada Centre for Mineral and Energy Technology, the National Research Council of Canada and SNC-Lavalin. The program included preliminary characterization of the sludge derived oil (SDO), laboratory tests to evaluate its potential as an antistripping agent and to determine the effect of SDO on asphalt performance factors, field tests to evaluate engineering properties and a highway test trial on an operating highway. The study included that SDO is an effective antistripping agent and provides protection against moisture induced damage comparable to that achieved with commercial additives. The addition of SDO did not adversely affect the performance of asphalt concrete but did result in increased workability and compaction, and increased resistance to damage by low temperature, rutting and fatigue.
- Research Organization:
- National Renewable Energy Lab. (NREL), Golden, CO (United States)
- OSTI ID:
- 115328
- Report Number(s):
- NREL/CP-200-8098; CONF-9508104-; ON: DE95009230; TRN: 95:006736-0109
- Resource Relation:
- Conference: 2. meeting on biomass of the Americas, Portland, OR (United States), 21-24 Aug 1995; Other Information: PBD: [1995]; Related Information: Is Part Of Second biomass conference of the Americas: Energy, environment, agriculture, and industry. Proceedings; PB: 1741 p.
- Country of Publication:
- United States
- Language:
- English
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