skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Process for removing halogenated aliphatic and aromatic compounds from petroleum products

Abstract

A process is described for removing halogenated aliphatic and aromatic compounds, e.g., polychlorinated biphenyls, from petroleum products by solvent extraction. The halogenated aliphatic and aromatic compounds are extracted from a petroleum product into a polar solvent by contacting the petroleum product with the polar solvent. The polar solvent is characterized by a high solubility for the extracted halogenated aliphatic and aromatic compounds, a low solubility for the petroleum product and considerable solvent power for polyhydroxy compound. The preferred polar solvent is dimethylformamide. A miscible compound, such as, water or a polyhydroxy compound, is added to the polar extraction solvent to increase the polarity of the polar extraction solvent. The halogenated aliphatic and aromatic compounds are extracted from the highly-polarized mixture of water or polyhydroxy compound and polar extraction solvent into a low polar or nonpolar solvent by contacting the water or polyhydroxy compound-polar solvent mixture with the low polar or nonpolar solvent. The halogenated aliphatic and aromatic compounds and the low polar or nonpolar solvent are separated by physical means, e.g., vacuum evaporation. The polar and nonpolar solvents are recovered from recycling. The process can easily be designed for continuous operation. Advantages of the process include that the polar solventmore » and a major portion of the nonpolar solvent can be recycled, the petroleum products are reclaimable and the cost for disposing of waste containing polychlorinated biphenyls is significantly reduced. 1 fig.« less

Inventors:
; ;
Publication Date:
OSTI Identifier:
7262479
Patent Number(s):
US 4405448; A
Application Number:
PPN: US 6-364060
Assignee:
PTO; EDB-94-121486
DOE Contract Number:  
W-7405-ENG-26
Resource Type:
Patent
Resource Relation:
Patent File Date: 31 Mar 1982
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; HALOGENATED ALIPHATIC HYDROCARBONS; SOLVENT EXTRACTION; HALOGENATED AROMATIC HYDROCARBONS; PETROLEUM PRODUCTS; CLEANING; POLYCHLORINATED BIPHENYLS; AMIDES; ORGANIC SOLVENTS; RECYCLING; SOLVENT PROPERTIES; AROMATICS; CHLORINATED AROMATIC HYDROCARBONS; EXTRACTION; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; SEPARATION PROCESSES; SOLVENTS; 020800* - Petroleum- Waste Management

Citation Formats

Googin, J M, Napier, J M, and Travaglini, M A. Process for removing halogenated aliphatic and aromatic compounds from petroleum products. United States: N. p., 1983. Web.
Googin, J M, Napier, J M, & Travaglini, M A. Process for removing halogenated aliphatic and aromatic compounds from petroleum products. United States.
Googin, J M, Napier, J M, and Travaglini, M A. Tue . "Process for removing halogenated aliphatic and aromatic compounds from petroleum products". United States.
@article{osti_7262479,
title = {Process for removing halogenated aliphatic and aromatic compounds from petroleum products},
author = {Googin, J M and Napier, J M and Travaglini, M A},
abstractNote = {A process is described for removing halogenated aliphatic and aromatic compounds, e.g., polychlorinated biphenyls, from petroleum products by solvent extraction. The halogenated aliphatic and aromatic compounds are extracted from a petroleum product into a polar solvent by contacting the petroleum product with the polar solvent. The polar solvent is characterized by a high solubility for the extracted halogenated aliphatic and aromatic compounds, a low solubility for the petroleum product and considerable solvent power for polyhydroxy compound. The preferred polar solvent is dimethylformamide. A miscible compound, such as, water or a polyhydroxy compound, is added to the polar extraction solvent to increase the polarity of the polar extraction solvent. The halogenated aliphatic and aromatic compounds are extracted from the highly-polarized mixture of water or polyhydroxy compound and polar extraction solvent into a low polar or nonpolar solvent by contacting the water or polyhydroxy compound-polar solvent mixture with the low polar or nonpolar solvent. The halogenated aliphatic and aromatic compounds and the low polar or nonpolar solvent are separated by physical means, e.g., vacuum evaporation. The polar and nonpolar solvents are recovered from recycling. The process can easily be designed for continuous operation. Advantages of the process include that the polar solvent and a major portion of the nonpolar solvent can be recycled, the petroleum products are reclaimable and the cost for disposing of waste containing polychlorinated biphenyls is significantly reduced. 1 fig.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1983},
month = {9}
}