Removal of arsenic, vanadium, and/or nickel compounds from petroliferous liquids

Patent · Wed Jan 01 00:00:00 EST 1986

OSTI ID:865944

Fish, Richard H ^[1]

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1. Berkeley, CA

Described is a process for removing arsenic, vanadium, and/or nickel from petroliferous derived liquids by contacting said liquid at an elevated temperature with a divinylbenzene-crosslinked polystyrene having catechol ligands anchored thereon. For vanadium and nickel removal an amine, preferably a diamine is included. Also, described is a process for regenerating spent catecholated polystyrene by removal of the arsenic, vanadium, and/or nickel bound to it from contacting petroliferous liquid as described above and involves: treating the spent polymer containing any vanadium and/or nickel with an aqueous acid to achieve an acid pH; and, separating the solids from the liquid; and then treating said spent catecholated polystyrene, at a temperature in the range of about 20.degree. to 100.degree. 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, separating the solids and liquids from each other. Preferably the regeneration treatment of arsenic containing catecholated polymer is in two steps wherein the first step is carried out with an aqueous alcoholic carbonate solution containing lower alkyl alcohol, and, the steps are repeated using a bicarbonate.

• Research Organization: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
• DOE Contract Number: AC03-76SF00098
• Assignee: United States of America as represented by United States (Washington, DC)
• Patent Number(s): US 4604191
• OSTI ID: 865944
• Country of Publication: United States
• Language: English

Related Subjects

removal
arsenic
vanadium
nickel
compounds
petroliferous
liquids
described
process
removing
derived
contacting
liquid
elevated
temperature
divinylbenzene-crosslinked
polystyrene
catechol
ligands
anchored
thereon
amine
preferably
diamine
included
regenerating
spent
catecholated
bound
involves
treating
polymer
containing
aqueous
acid
achieve
ph
separating
solids
range
20
degree
100
solution
carbonate
bicarbonate
ammonium
alkali
alkaline
earth
metals
10
regeneration
treatment
steps
step
carried
alcoholic
alkyl
alcohol
repeated
aqueous acid
alkyl alcohol
aqueous alcoholic
regenerating spent
solution containing
aqueous solution
elevated temperature
alkaline earth
earth metal
earth metals
carbonate solution
polymer containing
catecholated polystyrene
spent catecholated
regeneration treatment
removing arsenic
petroliferous liquid
petroliferous derived
contacting petroliferous
derived liquids
divinylbenzene-crosslinked polystyrene
alcoholic carbonate
catechol ligands
anchored thereon
catecholated polymer
ligands anchored
nickel compounds
petroliferous liquids
crosslinked polystyrene
/208/585/