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Organic constituents in sour condensates from shale-oil and petroleum-crude runs at Sohio's Toledo refinery: identification and wastewater-control-technology considerations

Technical Report ·
DOI:https://doi.org/10.2172/6608103· OSTI ID:6608103
Samples of sour condensate generated from the continuous processing of both crude shale oil and petroleum crude were collected and extracted with methylene chloride. The extracts were analyzed using capillary-column gas chromatography/mass spectrometry at Argonne National Laboratory and Radian Corporation. Qualitatively, the predominant types of organic compounds present in the shale-oil sour condensate were pyridines and anilines; semiquantitatively, these compounds were present at a concentration of 5.7 ppM, or about 78% of the total concentration of components detected. In contrast, straight-chain alkanes were the predominant types of compounds found in the sour condensate produced during isocracking of conventional crude oil. The approximate concentration of straight-chain alkanes, 8.3 ppM, and of other branched and/or unsaturated hydrocarbons, 6.8 ppM, amounted to 88% of the total concentration of components detected in the sour condensate from the petroleum-crude run. Nitrogen compounds in the shale-oil sour condensate may necessitate alterations of the sour water and refinery wastewater-treatment facilities to provide for organics degradation and to accommodate the potentially greater ammonia loadings. This would include use of larger amounts of caustic to enhance ammonia removal by steam stripping. Possible problems associated with biological removal of organic-nitrogen compounds should be investigated in future experimental shale-oil refining runs.
Research Organization:
Argonne National Lab., IL (USA)
Sponsoring Organization:
USDOE
DOE Contract Number:
W-31109-ENG-38
OSTI ID:
6608103
Report Number(s):
ANL/PAG-4
Country of Publication:
United States
Language:
English

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