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Title: Removal of arsenic compounds from petroliferous liquids

Abstract

The present invention in one aspect comprises a process for removing arsenic from petroliferous-derived liquids by contacting said liquid with a divinylbenzene-crosslinked polystyrene polymer (i.e. PS-DVB) having catechol ligands anchored to said polymer, said contacting being at an elevated temperature. In another aspect, the invention is a process for regenerating spent catecholated polystyrene polymer by removal of the arsenic bound to it from contacting petroliferous liquid in accordance with the aspect described above which regenerating process comprises: (a) treating said spent catecholated polystyrene polymer with an aqueous solution of at least one member selected from the group consisting of carbonates and bicarbonates of ammonium, alkali metals, and alkaline earth metals, said solution having a pH between about 8 and 10, and said treating being at a temperature in the range of about 20/sup 0/ to 100/sup 0/C; (b) separating the solids and liquids from each other. In a preferred embodiment the regeneration treatment is in two steps wherein step: (a) is carried out with an aqueous alcoholic carbonate solution which includes at least one lower alkyl alcohol, and, steps (c) and (d) are added. Steps (c) and (d) comprise: (c) treating the solids with an aqueous alcoholic solution of atmore » least one ammonium, alkali or alkaline earth metal bicarbonate at a temperature in the range of about 20 to 100/sup 0/C; and (d) separating the solids from the liquids.« less

Inventors:
Issue Date:
OSTI Identifier:
6198141
Application Number:
ON: TI85005744
Assignee:
Dept. of Energy EDB-85-031363
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 01 COAL, LIGNITE, AND PEAT; ARSENIC COMPOUNDS; REMOVAL; CATALYSTS; REGENERATION; PETROLEUM; PURIFICATION; PETROLEUM PRODUCTS; SHALE OIL; SOLVENT-REFINED COAL; WASTE WATER; ENERGY SOURCES; FOSSIL FUELS; FUELS; HYDROGEN COMPOUNDS; LIQUID WASTES; MINERAL OILS; OILS; ORGANIC COMPOUNDS; OTHER ORGANIC COMPOUNDS; OXYGEN COMPOUNDS; WASTES; WATER; 020400* - Petroleum- Processing; 010405 - Coal, Lignite, & Peat- Hydrogenation & Liquefaction

Citation Formats

Fish, R.H. Removal of arsenic compounds from petroliferous liquids. United States: N. p., 1984. Web.
Fish, R.H. Removal of arsenic compounds from petroliferous liquids. United States.
Fish, R.H. Fri . "Removal of arsenic compounds from petroliferous liquids". United States.
@article{osti_6198141,
title = {Removal of arsenic compounds from petroliferous liquids},
author = {Fish, R.H.},
abstractNote = {The present invention in one aspect comprises a process for removing arsenic from petroliferous-derived liquids by contacting said liquid with a divinylbenzene-crosslinked polystyrene polymer (i.e. PS-DVB) having catechol ligands anchored to said polymer, said contacting being at an elevated temperature. In another aspect, the invention is a process for regenerating spent catecholated polystyrene polymer by removal of the arsenic bound to it from contacting petroliferous liquid in accordance with the aspect described above which regenerating process comprises: (a) treating said spent catecholated polystyrene polymer with an aqueous solution of at least one member selected from the group consisting of carbonates and bicarbonates of ammonium, alkali metals, and alkaline earth metals, said solution having a pH between about 8 and 10, and said treating being at a temperature in the range of about 20/sup 0/ to 100/sup 0/C; (b) separating the solids and liquids from each other. In a preferred embodiment the regeneration treatment is in two steps wherein step: (a) is carried out with an aqueous alcoholic carbonate solution which includes at least one lower alkyl alcohol, and, steps (c) and (d) are added. Steps (c) and (d) comprise: (c) treating the solids with an aqueous alcoholic solution of at least one ammonium, alkali or alkaline earth metal bicarbonate at a temperature in the range of about 20 to 100/sup 0/C; and (d) separating the solids from the liquids.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1984},
month = {4}
}