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Title: Removal of arsenic compounds from petroliferous liquids

Abstract

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.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, 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.

Inventors:
 [1]
  1. (Berkeley, CA)
Issue Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA
OSTI Identifier:
865460
Patent Number(s):
4518490
Assignee:
United States of America as represented by United States (Washington, DC) LBNL
DOE Contract Number:  
AC03-76SF00098
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
removal; arsenic; compounds; petroliferous; liquids; described; process; removing; derived; contacting; liquid; elevated; temperature; divinylbenzene-crosslinked; polystyrene; catechol; ligands; anchored; thereon; regenerating; spent; catecholated; bound; involves; treating; range; 20; degree; 100; aqueous; solution; carbonate; bicarbonate; ammonium; alkali; alkaline; earth; metals; ph; 10; separating; solids; preferably; regeneration; treatment; steps; step; carried; alcoholic; containing; alkyl; alcohol; repeated; alkyl alcohol; aqueous alcoholic; regenerating spent; solution containing; aqueous solution; elevated temperature; alkaline earth; earth metal; earth metals; carbonate solution; catecholated polystyrene; spent catecholated; arsenic compounds; regeneration treatment; removing arsenic; petroliferous liquid; petroliferous derived; contacting petroliferous; derived liquids; divinylbenzene-crosslinked polystyrene; alcoholic carbonate; catechol ligands; anchored thereon; ligands anchored; petroliferous liquids; crosslinked polystyrene; /208/502/

Citation Formats

Fish, Richard H. Removal of arsenic compounds from petroliferous liquids. United States: N. p., 1985. Web.
Fish, Richard H. Removal of arsenic compounds from petroliferous liquids. United States.
Fish, Richard H. Tue . "Removal of arsenic compounds from petroliferous liquids". United States. https://www.osti.gov/servlets/purl/865460.
@article{osti_865460,
title = {Removal of arsenic compounds from petroliferous liquids},
author = {Fish, Richard H.},
abstractNote = {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.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, 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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {1985},
month = {1}
}

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