Thermal treatment of refinery wastes for oil recovery: The PST process

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Pacific Northwest Laboratory (PNL) has been investigating thermal, high-pressure processing of organic waste streams. The range of research and development activities extends from fundamental studies of conversion of biomass, coal, and organic wastes in high-pressure aqueous environments to tests in small pilot-scale reactor systems. Several processes have been developed from these investigations including two that have already been licensed to private companies. The most recently developed process is the Petroleum Sludge Treatment (PST) system which separates and recovers oil and water from oil-in-water emulsions such as the US Environmental Protection Agency (EPA) K'' listed wastes. The PST process evolved from ... continued below

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Pages: (5 p)

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Baker, E.G.; Elliott, D.C. & Sealock, L.J. Jr. December 1, 1991.

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Description

Pacific Northwest Laboratory (PNL) has been investigating thermal, high-pressure processing of organic waste streams. The range of research and development activities extends from fundamental studies of conversion of biomass, coal, and organic wastes in high-pressure aqueous environments to tests in small pilot-scale reactor systems. Several processes have been developed from these investigations including two that have already been licensed to private companies. The most recently developed process is the Petroleum Sludge Treatment (PST) system which separates and recovers oil and water from oil-in-water emulsions such as the US Environmental Protection Agency (EPA) K'' listed wastes. The PST process evolved from attempts to convert API and DAF sludges to methane gas using the Thermochemical Environmental Energy System process. We were unsuccessful in converting these sludges to methane, however it became evident that thermal, high-pressure processing was very effective in separating the components of these sludges. The concept was further investigated and refined and the PST process was granted a US Patent in 1990.

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Pages: (5 p)

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OSTI; NTIS; INIS; GPO Dep.

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  • 3. annual symposium on environmental protection in energy industry, Tulsa, OK (United States), 12 Dec 1991

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  • Other: DE92010497
  • Report No.: PNL-SA-20173
  • Report No.: CONF-9112110--1
  • Grant Number: AC06-76RL01830
  • Office of Scientific & Technical Information Report Number: 5595284
  • Archival Resource Key: ark:/67531/metadc1092375

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Office of Scientific & Technical Information Technical Reports

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  • December 1, 1991

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  • Feb. 10, 2018, 10:06 p.m.

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  • April 20, 2018, 12:53 p.m.

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Baker, E.G.; Elliott, D.C. & Sealock, L.J. Jr. Thermal treatment of refinery wastes for oil recovery: The PST process, article, December 1, 1991; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc1092375/: accessed October 17, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.