Method for removing or retarding paraffin buildup on surfaces in

Details Method for removing or retarding paraffin buildup on surfaces in Method for removing or retarding paraffin buildup on surfaces in

1984-05-11

1985-08-20

Caroff, Marc L.

Cleaning and liquid contact with solids

Processes

Including melting

134 21, 134 2211, 134 30, 134 40, 166304, 252 855B, B08B 704, E21B 3706

Patent

active

045362220

ABSTRACT:
A sulfur trioxide-containing fluid, e.g., sulfur trioxide gas, is contacted with the surfaces of equipment in contact with crude oil or natural gas to retard the deposition of paraffins from the crude oil or natural gas and/or to react with the paraffins already deposited on the equipment surfaces to produce a water-dispersible material which is removed with an aqueous liquid.

REFERENCES:
patent: 1445329 (1923-02-01), Lenher
patent: 2221353 (1940-11-01), Limerick et al.
patent: 2347527 (1944-04-01), Vanderbilt
patent: 2356254 (1944-08-01), Lehmann et al.
patent: 3259187 (1966-07-01), Prats et al.
patent: 3279541 (1966-10-01), Knox et al.
patent: 4089703 (1978-05-01), White
patent: 4105841 (1978-08-01), Settineri et al.
patent: 4147638 (1979-04-01), Plummer
patent: 4363673 (1982-12-01), Settineri et al.
patent: 4455175 (1984-06-01), Settineri et al.
Chem. Abstracts, "Abstract No. 40330e", vol. 94, 1981, p. 666.

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