MVR Evaporation Technology in the Recovery System in PA6 Polymerization Process

Categories:Engineering Technology
Time of issue:2022-01-26 13:58:55
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Description:

Information

MVR (Mechanical Vapor Recompression) is a technology used in evaporation system for the compression of secondary vapor to elevate its enthalpy and thus to circulate it as heating media again for evaporation.
The MVR technology by Hiscien has successfully been applied in many PA6 polymerization projects. For the evaporation of monomer water in PA6 poly plants, the running cost of evaporation by MVR technology is 70% less than by the conventional multi-stage evaporation system.

·Major Technology & Consumption Data

3D Design Model of MVR

➢Specs of Extraction Water

Extractible content	7～13%
Temperature	> 85℃

➢Guarantee Data of the System

A. Specs of materials coming out of the system
Concentration	70～85%
Monomer content of recovered water	＜0.05%
B. Energy consumption (at the load of 90% or more)
Electricity	≤ 25kwh/ t of extraction water（Concentration 10%）
Steam（0.6MPa）	≤ 40kg/ t of extraction water（Concentration 10%）
Circulating water	≤ 4t/ t of extraction water（Concentration 10%）
C. Adjustable range of capacity
Capacity	Capacity range: 35%~100%