Mineral oils: processes and products – Chemical conversion of hydrocarbons – With prevention or removal of deleterious carbon...
Reexamination Certificate
2005-02-08
2005-02-08
Griffin, Walter D. (Department: 1764)
Mineral oils: processes and products
Chemical conversion of hydrocarbons
With prevention or removal of deleterious carbon...
C208S04800Q, C208S131000, C208S132000, C585S648000
Reexamination Certificate
active
06852213
ABSTRACT:
This invention is directed to a method of inhibiting fouling of heat transfer surfaces in contact with petroleum or hydrocarbon feedstocks comprising contacting the heat-transfer surfaces with an effective amount of a thermally-treated phosphorous-sulfur compound and to methods and apparatus for preparing and contacting the thermally-treated phosphorous-sulfur compounds with the heat transfer surfaces.
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Breininger Thomas M.
Griffin Walter D.
Martin Michael B.
Nalco Energy Services
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