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US 2026/0166600 A1Published application
Method and System for Cleaning Reactor
AssigneeLG Chem, Ltd.
InventorsMoon Sub Hwang, Jeong Seok Lee, Geun Tae Pak
Life of this patent
Estimating the term…
Abstract
A method for cleaning a reactor may effectively and quickly clean fouling polymers in a reactor and a surrounding device by operating one or more heating devices, and prevent pipe plugging caused by the polymers that are molten in a cleaning solvent and transported after the cleaning. The method for cleaning a reactor may be performed by a system for cleaning a reactor.
Claims15
A method for cleaning a reactor, the method comprising:
- partially filling the reactor with a cleaning solvent by passing the cleaning solvent from a cleaning solvent supply unit to the reactor through a cleaning solvent supply line;
- heating the cleaning solvent in the reactor;
- filling the reactor with the cleaning solvent by passing the cleaning solvent from the cleaning solvent supply unit to the reactor through the cleaning solvent supply line, and transporting a cleaning solvent stream including polymers to the cleaning solvent supply unit through a cleaning solvent discharge line connected to an upper part of the reactor,
- wherein heating the cleaning solvent in the reactor comprises passing a lower discharge stream of the reactor to one or more heating devices, and to a side of the reactor.
1 more element
A system for cleaning a reactor, the system comprising:
- a cleaning solvent supply unit configured to receive, store, and preheat a cleaning solvent supplied from the outside and configured to supply the cleaning solvent, wherein the cleaning solvent supply unit is connected to one or more of a lower part of the reactor or a side of the reactor through a cleaning solvent supply line, and wherein the cleaning solvent supply unit is configured to recover the cleaning solvent discharged from the reactor, wherein the cleaning solvent supply unit is connected to an upper part of the reactor through a cleaning solvent discharge line;
- and
- a first heating device configured to heat the cleaning solvent in the reactor using a steam as a heat source, wherein the first heating device is connected to a first side of the reactor through a first heating circulation line,
- wherein an auxiliary circulation line connects the discharge line to each other, and
- the auxiliary circulation line has a first side connected between a valve disposed on the cleaning solvent supply line and the cleaning solvent supply unit, and a second side connected between a valve disposed on the cleaning solvent discharge line and the cleaning solvent supply unit.
2 more elements
Dependencies are inferred from the claim text.