摘要
Abstract
The aromatics unit plant has high energy consumption due to its long process flow,large circulation capacity,and large-scale equipment.Especially in the adsorption separation unit,as the extraction and raffinate towers for the cyclic separation of PDEB,the top temperatures of the two towers are between 100～200℃.This part of the heat has a relatively large low-temperature heat,which causes heat loss of the device through air cooling and condensation.Through the transformation over the years,a company has realized the deep utilization of the the low-temperature heat,within the aromatics joint plant,between the aromatics joint plant and the ethylene plant,public engineering plants,and surrounding chemical parks.At the same time,it also provides reference significance for more low-temperature thermal applications in the future.关键词
芳烃联合装置/低温热/抽余液塔/抽出液塔/除氧水Key words
aromatics complex plant/low-temperature heat/extraction tower/raffinate tower/deoxygenated water
