Accession Number:

AD0679561

Title:

DUST RETARDATION STUDIES OF CARBON DIOXIDE SORBENTS

Descriptive Note:

Final rept. Apr 1967-Feb 1968

Corporate Author:

MSA RESEARCH CORP EVANS CITY PA

Personal Author(s):

• Tepper, Frederick
• Friel, Joseph V.

Report Date:

1968-08-01

Pagination or Media Count:

54.0

Abstract:

Surfaces of carbon dioxide sorbent granules were treated with various liquid preparations to diminish dusting tendency and to improve carbon dioxide capacity. Emphasis was placed on a screening program whereby granules of lithium hydroxide were impregnated with solutions of surfactants, organic polymers, and lithium halide salts. Relative effectiveness of treatment was evaluated using a carbon dioxide dynamic capacity test and a dust test. Studies show that latex emulsions significantly diminish dusting tendency of lithium hydroxide granules with only negligible loss in carbon dioxide sorption capacity. Lithium chloride-treated lithium hydroxide results in significantly improved carbon dioxide capacity at low humidity, but such treatment is generally less effective as a deduster than the latex preparation. Excess loadings of surfactants were required to diminish dusting to acceptable limits.

Descriptors:

• *DUST
• *CARBON DIOXIDE
• *CHEMISORPTION
• POLYMERS
• HYDROXIDES
• LITHIUM COMPOUNDS
• HALIDES
• SURFACE ACTIVE SUBSTANCES

Subject Categories:

• Physical Chemistry

Distribution Statement:

APPROVED FOR PUBLIC RELEASE