Removal of arsenic compounds from petroliferous liquids
Described is a process for removing arsenic from petroliferous derived liquids by contacting said liquid at an elevated temperature with a divinylbenzene-crosslinked polystyrene having catechol ligands anchored thereon. Also, described is a process for regenerating spent catecholated polystyrene by removal of the arsenic bound to it from contacting petroliferous liquid as described above and involves: a. treating said spent catecholated polystyrene, at a temperature in the range of about 20/sup 0/ to 100/sup 0/ C. with an aqueous solution of at least one carbonate and/or bicarbonate of ammonium, alkali and alkaline earth metals, said solution having a pH between about 8 and 10 and, b. separating the solids and liquids from each other. Preferably the regeneration treatment is in two steps wherein step (a) is carried out with an aqueous alcoholic carbonate solution containing lower alkyl alcohol, and, steps (a) and (b) are repeated using a bicarbonate.
- Assignee:
- The United States of America as represented by the United States Department of Energy
- Patent Number(s):
- US 4518490
- OSTI ID:
- 6412167
- Resource Relation:
- Patent File Date: Filed date 6 Apr 1984; Other Information: PAT-APPL-597627
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
01 COAL, LIGNITE, AND PEAT
04 OIL SHALES AND TAR SANDS
ARSENIC COMPOUNDS
REMOVAL
COAL LIQUIDS
PURIFICATION
PETROLEUM
SHALE OIL
BENZENE
LIGANDS
MEDIUM TEMPERATURE
POLYSTYRENE
PYROCATECHOL
REGENERATION
AROMATICS
DEVELOPERS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUELS
HYDROCARBONS
HYDROXY COMPOUNDS
LIQUIDS
MATERIALS
MINERAL OILS
OILS
ORGANIC COMPOUNDS
ORGANIC POLYMERS
OTHER ORGANIC COMPOUNDS
PETROCHEMICALS
PETROLEUM PRODUCTS
PHENOLS
PLASTICS
POLYMERS
POLYOLEFINS
POLYPHENOLS
POLYVINYLS
SYNTHETIC MATERIALS
020400* - Petroleum- Processing
013000 - Coal
Lignite
& Peat- Transport
Handling
& Storage
040404 - Oil Shales & Tar Sands- Purification