STEAM GENERATOR ADDITIVES TO MINIMIZE FOULING AND CORROSION IN CRUDE TOWERS

摘要

Dual action amines provide corrosion protection from corrosion and fouling for a steam generator system and distillation tower of a petroleum or petrochemical refinery. These amines are chosen to provide protection for the steam condensate section of the boiler while simultaneously minimizing amine salt fouling and corrosion problems in the crude distillation tower and overhead condensing system of crude distillation units. The distribution ratio of the dual action amine should be about 4.0 or less, the amine pKa should be in the range of about 7.0 to about 11.0, and the amine HCl salt volatility index should be about 2.5 or less.

主权项

1. A method of inhibiting fouling and corrosion in a refinery distillation tower and a steam generator, wherein crude oil is injected into said refinery distillation tower for fractional distillation of a plurality of fractions of said crude oil, and wherein steam from a steam generator is used as stripping medium in said refinery distillation tower, said method comprising:
feeding a dual action amine composition into said steam generator; and carrying said dual action amine composition in vapor form to said refinery distillation tower.