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RECOVERY OF METALS FROM SPENT CATALYSTS 1. CATALYSTS MANAGEMENT AND SPENT CATALYSTS SOURCES


GAVRILÄ‚ LUCIAN
DEPOLLUTION ENGINEERING LABORATORY - UNIVERSITY OF BACÄ‚U

Issue:

MOCM, Number 12, Volume I

Section:

MOCM - Volume I (2006)

Abstract:

Catalysts are indispensable in many chemical processing industries for routine production of ammonia, nitric acid, sulfuric acid, methanol, formaldehyde, gasoline, diesel fuels, jet fuels, heavy oil hydrocarbons, petrochemicals and plastics. During processing, catalysts will become contaminated with impurities and become deactivated. When that happens, they are usually sent for regeneration where contaminants are removed. Ultimately, they will be contaminated in a manner and at a level that makes regeneration impractical. At this stage, catalysts are considered “spent” and they may pose significant environmental problems, as landfill disposal is no longer accepted as best practice. The paper provides an overview on the spent catalyst sources, level and potential hazard, highlighting the actual trends in catalysts management.

Keywords:

spent catalysts, metals recovery, recycling, scrap, chemical industry, oil refining.

Code [ID]:

MOCM200612V01S01A0016 [0000713]


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