扬子石化公司现有两套常减压装置 ,第 1套产能为 30 0万ｔ·ａ- 1,于 1987年 6月建成投产 ,2 0 0 1年 7月大修期间进行改扩建 ,其产能由 30 0万ｔ·ａ- 1扩为 35 0万ｔ·ａ- 1;第 2套常减压装置产能为 2 5 0万ｔ·ａ- 1,是为配合 4 0万ｔ·ａ- 1乙烯改造而建 ,于 1995年建成投 Yangzi Petrochemical Company’s existing two sets of atmospheric and vacuum distillation unit, the first set of production capacity of 30 million t · a-1, completed and put into operation in June 1987, overhaul in July 2001 for expansion and expansion, the production capacity from 30 million t · a-1 to 3.5 million t · a-1. The second set of atmospheric and vacuum units has a capacity of 2.5 million t · a-1, which is designed to cope with 400,000 t · a-1 of ethylene Reconstruction and built in 1995 built cast