450d
450d-
The operating period is prolonged to over 450d from the original 60d after the new polymerization inhibitor JD-249 is used in butadiene extraction plant , the amount of 3 kinds of chemicals is also greatly decreased , and the economical results are remarkable .
丁二烯抽提装置使用新型阻聚剂JD-A249后，运行周期由60d延长至450d以上。还可以大大降低3种化学品的用量，总体经济效益可观。