Main > PETROLEUM > Naphthenic Acid. Sulfur. Removal

Product USA. U

PATENT ASSIGNEE'S COUNTRY USA
UPDATE 11.99
PATENT ASSIGNEE UniPure Corp
PATENT CLAIMS Claim 32:
Method for upgrading an oil stream contg naphthenic acid & S contaminants
- Adding CaO to oil stream at amount 1.5-2.0 times the total
theoretical requirement for converting all -COOH to CaCO3
& all S to CaS
- Mixing CaO with oil stream to form mixt
- Heating mixt under pressure to prevent vaporization of mixt
to 250-500C for 5-15 min to react acid with CaO to form non-
acidic compds & CaCO3 & S contaminants with CaO to
form CaS
- Sepn CaCO3 & CaS
PATENT PHOTOCOPY Available on request

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