杭州制氧机集团公司设计制造的燕山石化总公司66万吨/年级大型乙烯冷箱现已成功投产,在各有关方面代表的见证下,对改造后的燕山石化乙烯设备进行了72小时的性能考核,乙烯生产能力达到88.75吨/小时,按8000时/年计算,乙烯生产能力达71万吨/年。2002年4月2日正式举行了乙烯第二轮改造考核成 Yanthan Petrochemical Corporation designed and manufactured by Hangzhou Oxygen Machine Group Corporation has successfully put into operation the 660,000t / year large-scale ethylene cold box and witnessed by representatives from all parties concerned to conduct the 72-hour performance on the modified Yanshan Petrochemical ethylene equipment. Assessment, ethylene production capacity reached 88.75 tons / hour, according to 8000 hours / year calculation, ethylene production capacity of 710,000 tons / year. April 2, 2002 formally held the second round of ethylene assessment into