From February to July in 2004, our company completed the process package, basic design and detailed design of the China  National Petroleum Corporation - Jilin Petrochemical Branch's 140,000t/a butadience plant. The device is the butadience plant with the largest engineering magnification factor in China and achieved a successful operatiion. On this basis, a butadience plant with capacity of 150,000t/abnwas  transferred to Huajin Chemical Industries Group,Fushan Petrochemical Co.,Ltd., Sichuan Petrochemical Co., Ltd. etc.