气体分馏装置应用高效新型塔盘及新技术的优化改造

介绍了炼油厂气体分馏装置扩能改造和能量优化的情况。工业应用结果表明：通过更换高效塔盘、降液管等塔内件的方式，能够使装置处理量从128.17 kt/a提高至172.32 kt/a，并保证产品质量合格；同时利用催化裂化装置顶循环油作脱丙烷塔热源，停止使用1.0 MPa蒸汽对热水进行加热，装置综合能耗大幅降低，从4 303.7 MJ/t降至1 634.4 MJ/t。

OPTIMIZATION AND TRANSFORMATION OF GAS FRACTIONATION UNIT BY APPLICATION OF HIGH EFFICIENT NEW TRAYS AND NEW TECHNOLOGIES

This paper introduces the capacity expansion and optimization of the FCC gas fractionation unit of Daqing Refinery. The new high efficient trays, downcomer and other measures are adopted in the revamping. The transformation increases the capacity from 128.17 kt/a to 172.32 kt/a, and ensure the product quality. By using the top cycle oil from FCC unit as the hot source of the de-propane tower to heat the hot water instead of 1.0MPa steam, the comprehensive energy consumption of the unit is greatly reduced from 4303.7 MJ/t to 1634.4 MJ/t.