| INDE Treat & INDE Sweet H2S / Mercaptan Removal & Sweetening processes
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Today's refiners have to cope with relentless
pressure on profitability due to increasing
operational costs and environmental demands.
The Continuous Film Contactor (CFC) a novel
mass transfer device developed jointly by IOC
R&D and Engineers India Limited, offers a
solution for effective removal of undesirable
compounds at lower costs. The lighter petroleum
fractions and products contain many unwanted
components such as sulfur compounds and
naphthenic acids, which need to be removed
due to their foul odour and corrosion tendency.
CFC is the heart of INDE Treat and INDE Sweet
technoloiges and it can remove :
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H2S from LPG,
naphtha & gasoline |
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Mercaptans from LPG, naphtha,
gasoline & ATF/ Kero |
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Naphthenic acids from diesel
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Acid gases from natural
gas, fuel Gas |
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It can regenerate spent caustic,
if required |
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This novel contactor is non-dispersive as
contacting occurs between two laminar films
of the phases involved. This contacting is
achieved by specially treated thin wire
bundles over which the two phases flow.
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CFC at IndianOil Refinery
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The distributors involved in distributing the
two liquid phases are critical. A novel and
patented two-stage distributor distributes the
aqueous caustic phase on the thin wire
bundles and organic phase between the
interstitial spaces.
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The liquids coming out of the contactor are
collected in a vessel, which separates the
two phases by gravity into lower aqueous and
upper organic phases.
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