Removal of arsenic compounds from petroliferous liquids

Patent · Fri Apr 06 00:00:00 EST 1984

OSTI ID:6198141

Fish, R H

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.

• DOE Contract Number: AC03-76SF00098
• Assignee: Dept. of Energy
• Application Number: ON: TI85005744
• OSTI ID: 6198141
• Country of Publication: United States
• Language: English

Related Subjects

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