6.Cyclohexanone/cyclohexanol/caprolactam/adipic acid
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | 150,000 t/a cyclohexanone project | Jiangsu Weiming Petrochemical Co., Ltd. | DN500 | 2017 |
| 2 | 200,000 t/a caprolactam refining plant and ammonia oximation plant | Fujian Yongrong Technology Co., Ltd. | Φ4600 | 2017 |
| 3 | Energy expansion and energy-saving technology reform project of KA oil benzene separation tower | Henan Shenma Nylon Chemical Co., Ltd. | Φ4200 | 2016.12 |
| 4 | Quality improvement and efficiency improvement project of dehydrogenation tower of hexane diamine unit | Henan Shenma Nylon Chemical Co., Ltd. | Φ3400/Φ2800 | 2016.06 |
| 5 | Modification of water extraction tower in oxime unit | Shijiazhuang Refinery | Φ2000 | 2015.09 |
| 6 | 30,000 t/a cyclohexanone by-product comprehensive utilization project | Shandong Yake Environmental Protection Technology Co., Ltd. | Φ1600 | 2015.06 |
| 7 | 100,000 t/a caprolactam project | Cangzhou Xuyang Chemical Co., Ltd. | Φ2500 | 2014.12 |
| 8 | Tower internals of 400,000 t/a integrated polyamide project | Fujian Shenyuan New Materials Co., Ltd. | Φ3000 | 2014.10 |
| 9 | Caprolactam cyclohexanone device | Jiangsu Sanding Petrochemical Technology Co., Ltd. | Φ3000 | 2014.09 |
| 10 | Pentanol separation project of Caprolactam Division | Yueyang Baling Petrochemical Co., Ltd. | Φ800 | 2014.04 |
| 11 | Newly built oximation tail suction towerin caprolactam workshop | Hubei Saning Chemical Co., Ltd. | Ф1000 | 2014.04 |
| 12 | Caprolactam adipate projec | China Pingmei Shenma Group Adipic Acid Caprolactam Project Preparation Office | Φ4000/Φ5400 | 2013.11 |
| 13 | Cyclohexanol unit of Caprolactam unit | Yangquan Coal Industry (Group) Co., Ltd. | Φ1000/Φ1800 | 2013.09 |
| 14 | Cyclohexanol unit of the first-phase project of 200 000 t/a caprolactam | Shanxi Orchid Technology Venture Co., Ltd. | Φ3000/Φ4000 | 2013.07 |
| 15 | Cyclohexanol unit of 200,000 t/a caprolactam project | Inner Mongolia Qinghua Group Co., Ltd. | Φ2400/Φ3050 | 2012.09 |
| 16 | Cyclohexanol unit of 200,000 t/a caprolactam project | Fujian Tianchen Yaolong New Material Co., Ltd. | Ф4000/Ф5400 | 2012.08 |
| 17 | Cyclohexene separation unit of cyclohexanol device for 150,000 t/a adipic acid project | Tangshan Zhonghao Chemical Co., Ltd. | Ф3000/Ф4000 | 2012.07 |
| 18 | 200,000 t/a caprolactam project | Nanjing DSM Chemical Co., Ltd. | Ф4200 | 2012.03 |
| 19 | Cyclohexene separation unit of 100,000 t/a caprolactam project | Luxi Industrial Equipment Co., Ltd. | Φ3000/Φ4000 | 2012.03 |
| 20 | 300,000 t/a caprolactam modification | China Petroleum & Chemical Corporation Baling Branch | Φ3200 | 2012.02 |
| 21 | Alcohol ketone refining of 100,000 t/a cyclohexanone plant | Sinopec Group Nanjing Chemical Industry Co., Ltd. | Φ4000 | 2012.02 |
| 22 | Retrofit of cyclohexene separation tower of 100,000 t/a cyclohexanol unit | Henan Shenma Nylon Chemical Co., Ltd. | Φ3000/Φ4200 | 2011.07 |
