A novel liquid membrane technique for removal of SO sub 2 /NO sub x from flue gas

Technical Report · Mon Jan 01 04:00:00 EST 1990

DOI:https://doi.org/10.2172/7073737· OSTI ID:7073737

The objective of this project is to measure the permeability coefficients of SO{sub 2}, CO{sub 2}, NO, O{sub 2} and N{sub 2} through a variety of immobilized liquid membranes using simulated flue gas mixtures, select the promising liquid membranes, study the extent of flue gas purification achieved in a novel microporous hollow-fiber-contained liquid membrane (HFCLM) permeator using selected membrane liquids, and determine the stability and reliability of this novel permeator for different operational modes. The simulated flue gas mixture to be used for the project should have a composition of around CO{sub 2} 12%, N{sub 2} 74%, O{sub 2} 1.8%, H{sub 2}O 12%, NO 0.045% and SO{sub 2} 0.5%. The ultimate target for purification is simultaneous 90% reduction of SO{sub 2} and NO. A SO{sub 2}/CO{sub 2} selectivity in the range of 50--200 is desirable along with high SO{sub 2} and NO flux. Measurements are to be made primarily at 25{degree}C with one measurement at 70{degree}C for the selected liquid membranes. Membranes tested include solutions of NaHSO{sub 3}, Na{sub 2}SO{sub 3}, Fe{sup 2+} EDTA and Fe{sup 3+} EDTA. 33 refs., 17 figs., 35 tabs.

• Research Organization: Stevens Inst. of Tech., Hoboken, NJ (USA). Dept. of Chemistry and Chemical Engineering
• Sponsoring Organization: DOE/FE
• DOE Contract Number: AC22-87PC79853
• OSTI ID: 7073737
• Report Number(s): DOE/PC/79853-T1; ON: DE90013757
• Country of Publication: United States
• Language: English

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ALKALI METAL COMPOUNDS
AMINO ACIDS
AQUEOUS SOLUTIONS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CARBOXYLIC ACIDS
CHALCOGENIDES
CHELATING AGENTS
DISPERSIONS
DOCUMENT TYPES
EDTA
ELEMENTS
FLUE GAS
GASEOUS WASTES
HOT GAS CLEANUP
IRON COMPOUNDS
MEMBRANES
MIXTURES
NITRIC OXIDE
NITROGEN
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PERMEABILITY
PROGRESS REPORT
PURIFICATION
SODIUM COMPOUNDS
SOLUTIONS
SPECIFICITY
SULFITES
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
TRANSITION ELEMENT COMPOUNDS
WASTES