Mineral oils: processes and products – Chemical conversion of hydrocarbons – With prevention or removal of deleterious carbon...
Patent
1992-07-01
1994-02-22
Bell, Mark L.
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With prevention or removal of deleterious carbon...
208 47, 252403, 252405, 585950, C10G 916
Patent
active
052883949
ABSTRACT:
An improved process for inhibiting the formation and deposition of polymer-based fouling materials after caustic scrubbing of hydrocarbon streams contaminated with oxygenated compounds with a basic washing solution having a pH>7 comprising adding to the hydrocarbon stream after caustic scrubbing a sufficient amount for inhibiting formation and deposition of polymer-based fouling materials of a composition comprising at least one hydrazide compound characterized by the formula ##STR1## where R is selected from the group consisting of H, NHNH.sub.2, and ##STR2##
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Lewis Vincent E.
Rowe Carl T.
Bell Mark L.
Hailey P. L.
Nalco Chemical Company
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