Note: The achievements of butadiene extraction and styrene extraction are shown in the butadiene and styrene extraction part respectively.

NO.	Project name	Client	Tower diameter/mm	Time
1	Technical reformation of the pre-separation towerof naphtha extraction	Sinopec Zhongyuan Oilfield Branch Petrochemical Plant	Φ2000	2016.04
2	Aromatic separation unit	Binzhou Kecheng Chemical Co., Ltd.	Φ1600	2016.01
3	Stripping tower reform of aromatics extraction device for 1.2 Mt/a ethylene conversion and expansion project	Daqing Petrochemical	Φ2600	2015.03
4	500,000 t/a aromatics extraction plant	Panjin North Asphalt Fuel Co., Ltd.	Φ1800/Φ2800	2014.05
5	220,000 t/a aromatics extraction plant of ethylene renovation and expansion project	Liaoning Huajin Tongda Chemical Co., Ltd.	Φ2400	2012.04
6	C6 extraction unitof benzene plant	No.7 Chemical Factory of Beijing Yanshan Branch	Φ2400/Φ3400	2011.05