Cooling method of hydrotreating plant and cooling unit therefor

Details Cooling method of hydrotreating plant and cooling unit therefor Cooling method of hydrotreating plant and cooling unit therefor

2006-09-26

2006-09-26

Caldarola, Glenn (Department: 1764)

Chemical apparatus and process disinfecting, deodorizing, preser

Chemical reactor

With means applying electromagnetic wave energy or...

C422S198000, C422S208000, C208S113000, C208S127000, C208S129000, C208S151000, C208S153000, C208S157000, C208S164000, C208S209000, C208S213000, C208S220000, C208S390000, C208S400000, C208S424000, C208S427000, C208S434000

Reexamination Certificate

active

07112311

ABSTRACT:
A cooling method of a hydrotreating plant having a desulfurization section (1) including a furnace (12) for heating liquid to be processed, reactors (14, 15) for hydrotreating sulfur to generate hydrogen sulfide, a hydrogen sulfide absorber (19) for absorbing the hydrogen sulfide generated in the reactors (14, 15), and a compressor (21) for compressing and transferring fluid from the hydrogen sulfide absorber (19) toward the reactors (14, 15), the cooling method comprising the steps of gradually depressurizing the hydrotreating plant at the desulfurization section (1) to a pressure level at which reactor material does not embrittle and gas does not leak due to difference of mechanical thermal expansion in the plant after stopping supply of the liquid to be processed, operating the compressor (21) approximately at the maximum rotation number, and completely extinguishing burners (12A,12B) in the furnace (12) during plant shutdown operation.

REFERENCES:
patent: 2614066 (1952-10-01), Cornell
patent: 3720602 (1973-03-01), Riley et al.
patent: 3725252 (1973-04-01), Maier
patent: 4071439 (1978-01-01), Yanik et al.
patent: 5176820 (1993-01-01), Lew
patent: 0938924 (1999-01-01), None
patent: 06-299168 (1994-10-01), None
patent: 10-077484 (1998-03-01), None

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