Cleaning method of reactor overhead condenser

Abstract

The invention provides a cleaning method of a reactor overhead condenser. A polypropylene production system using the cleaning method of the reactor overhead condenser comprises the reactor overhead condenser and a reactor overhead separator, wherein the reactor overhead condenser and the reactor overhead separator are communicated. The cleaning method of the reactor overhead condenser includes following steps: S1, enabling the polypropylene production system to stop running, and isolating the reactor overhead condenser from the reactor overhead separator in the polypropylene production system; S2, when cleaning the reactor overhead condenser, communicating the reactor overhead separator with a nitrogen conveying pipeline so as to use compressed nitrogen to supercharge the reactor overhead separator to normal pressure of the polypropylene production system; S3, blowing and sweeping the reactor overhead condenser, and emptying the reactor overhead condenser through an emptying pipeline communicated with the reactor overhead condenser. By adopting the technical scheme, the cleaning method of the reactor overhead condenser improves work efficiency for cleaning the reactor overhead condenser, and thereby improves production efficiency of polypropylene products.

Description

technical field [0001] The invention relates to the field of polypropylene production technology, in particular to a cleaning method for an overhead condenser of a reactor. Background technique [0002] like figure 1 As shown, in the Innovene process for producing polypropylene, the reactor overhead condenser 1 of the system is one of the core equipments of the device. After the gas from the upstream of the system is separated by the cyclone separator 2, it still contains a small amount of polypropylene dust and oligomers (oils). After the system runs for a long time, the tube side (process medium side) of the reactor overhead condenser 1 is easily fouled, thereby causing the heat exchange efficiency of the reactor overhead condenser 1 to decrease, which in turn indirectly causes the production load capacity of the system device. decline, ultimately affecting the output of the target product. When the heat exchange efficiency of the reactor overhead condenser 1 drops to a...

AI Technical Summary

Problems solved by technology

[0004] The main purpose of the present invention is to provide a cleaning method for the overhead condenser of the reactor, so as to solve the problem that in the prior art, it takes a long time to clean the fouling of the overhead condenser of the reactor, which leads to a long time for the system to stop production , problems affecting the production efficiency of polypropylene products

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