Decoking process and device

Details Decoking process and device Decoking process and device

1995-02-22

1999-01-05

Myers, Helane

Distillation: apparatus

Apparatus

Elements

208 48R, 201 1, 201 2, 134 20, 134 39, 196122, 196132, 432 2, 203 4, 203 1, C10B 4300

Patent

active

058557423

ABSTRACT:
A device for drilling a layer of coke within a reactor to effect the decoking of the reactor includes a decoking tool arranged at one end of a hose for conveying a decoking fluid to the tool. The decoking tool has a first part and a second part coaxial with the first part. The second part has means for ejecting the decoking fluid against the coke layer, including a first ejection means for ejecting the fluid in a substantially axial direction downwardly to penetrate the coke layer, a second ejection means ejecting the fluid in a substantially lateral direction and a third ejection means for ejecting the fluid in a substantially upward direction to remove any coke accumulated above the tool.

REFERENCES:
patent: 3412012 (1968-11-01), Patrick et al.
patent: 3920537 (1975-11-01), Walker
patent: 4224108 (1980-09-01), Takahashi et al.
patent: 4243633 (1981-01-01), Hozuma et al.
patent: 4275843 (1981-06-01), Purton et al.
patent: 4818298 (1989-04-01), Shishkin et al.
patent: 4828651 (1989-05-01), Lumbrose et al.
patent: 4959126 (1990-09-01), Tong et al.
patent: 5186815 (1993-02-01), Lenglet
patent: 5279675 (1994-01-01), Verbeek

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