Method for removing coke from fluid coker outlets

Details Method for removing coke from fluid coker outlets Method for removing coke from fluid coker outlets

1975-01-03

1976-12-07

Bashore, S. Leon

Cleaning and liquid contact with solids

Processes

Hollow work, internal surface treatment

134 30, 134 36, 134 39, 134102, 201 2, B08B 300

Patent

active

039960633

ABSTRACT:
Coke is removed from a cyclone vapor outlet by continuously introducing a stream of relatively low pressure steam into a vapor outlet, adding a stream of high pressure steam to the low pressure stream, subsequently adding a stream of high pressure water to the high pressure steam, and discontinuing the introduction of high pressure steam. After the desired amount of coke has been removed from the outlet by thermal shocking, the introduction of high pressure water is discontinued. Thereafter, if desired, low pressure air may be introduced into the low pressure steam to control coke deposition by localized combustion.

REFERENCES:
patent: 2200668 (1940-05-01), Carlson
patent: 2221803 (1940-11-01), Krobusek
patent: 2289351 (1942-07-01), Dixon et al.
patent: 2934489 (1960-04-01), Canevari
patent: 3416598 (1968-12-01), Dorn
patent: 3745110 (1973-07-01), Allred

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