Water washing to remove salts

Details Water washing to remove salts Water washing to remove salts

1994-12-05

1997-08-12

Caldarola, Glenn A.

Mineral oils: processes and products

Chemical conversion of hydrocarbons

With subsequent treatment of products

208177, 208178, 208208R, 208251R, 208254R, 208 47, 208DIG1, 585950, 95149, 95230, 95232, 95233, 95234, 95235, C10G 5700

Patent

active

056561520

ABSTRACT:
A continuous water washing process for removing salts from refinery process streams is disclosed. The salt and salt precursor content of a process stream is determined, and iterative calculations made to ensure an aqueous phase forms downstream of the water injection point with a salt and ion concentration within acceptable limits. Preferably chemical speciation calculations are used to check for corrosive, transient aqueous phases intermediate the point of water injection and the process outlet.

REFERENCES:
patent: 2212581 (1940-08-01), Babin
patent: 2446040 (1948-07-01), Blair, Jr.
patent: 2929772 (1960-03-01), Gilmore
patent: 4098675 (1978-07-01), Pope
patent: 4141816 (1979-02-01), Crowley et al.
patent: 4880568 (1989-11-01), Staley et al.
Materials Performance, vol. 32, No. 6, Jun. 1993 "A New Form of Localized Corrosion".
Oil & Gas Journal--Jan. 3, 1994, (pp. 38-41) "Calculations Estimate Process Stream Depositions" Author: Yiing-Mei Wu.
AICHe Annual Meeting, Atlanta, Georgia, May 1994.

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