1.Key technologies for large-scale oil refinery device
1.1 Atmospheric and vacuum distillation of oil refining
Vacuum tower (≥8 Mt/a)
Achievements in primary tower/atmospheric tower/atmospheric stripper
1.2 Refinery catalysis
Achievements in catalytic main fractionator
Achievements in catalytic absorption and stabilization
Achievements in catalytic cracking products refining
Achievements in catalytic dry gas recovery ethylene unit
1.3 Refining coking
Achievements in coking main fractionator
Achievements in coking absorption stabilization
Achievements in coking products refining
1.4 Refinery hydrogenation/hydrogen production
Achievements in diesel hydrogenation
Achievements in gasoline hydrogenation
Achievements in aromatic hydrogenation
Achievements in aviation kerosene hydrogenation
Achievements in other hydrogenation units
1.5 Catalytic reforming
1.6 Sulfur recovery
1.7 Acidic water stripping
Vacuum tower (≥8 Mt/a)
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | One-stage vacuum tower / two-stage vacuum tower of 12 Mt/a atmospheric and vacuum distillation unit | Sinochem Quanzhou Petrochemical Co., Ltd | Ф10800/Ф5800 | 2012.04 |
| 2 | Decompression system expansion and transformation project of distillation unit for 10 Mt/a atmospheric and vacuum unit | West Pacific Petrochemical Company Ltd.DALIAN | Φ5400/Ф7800/Ф9800/Ф5000 | 2014.06 |
| 3 | Adaptive transformation of 10 Mt/a 2# atmospheric and vacuum distillation unit | Fujian Refining &Petrochemical Company Limited | Ф10000 | 2012.05 |
| 4 | Design and manufacture of vacuum tower internals of 10 Mt/a atmospheric and vacuum unit | Sinopec Maoming Petrochemical Company | Ф11600 | 2012.01 |
| 5 | 8 Mt/a atmospheric and vacuum distillation unit of PMB petrochemical project | Constant From Brunei | Φ5600/Φ9800/Φ5600 | 2017.03 |
| 6 | Vacuum tower internals of technology transformation of decompression deep-drawing for 8 Mt/a atmospheric and vacuum distillation unit | Sinopec Yanshan Petrochemical Company | Ф9800 | 2013.08 |
| 7 | Design and manufacture of vacuum tower internals for 10 Mt/a atmospheric and vacuum unit | Sinopec Tianjin Shihua | Ф10800 | 2007.11 |
| 8 | Design and manufacture of vacuum tower internals for 10 Mt/a oil refinery vacuum tower | Sinopec Guangxi Shihua | Ф13700 | 2007.09 |
| 9 | Design and manufacture of vacuum tower for 10 Mt/a atmospheric and vacuum unit | Sinopec Qingdao Refining &Chemical Co., Ltd | Φ10800 | 2006.09 |
| 10 | Research and development of hydrotreating raw material vacuum tower for 10 Mt/a atmospheric and vacuum unit | West Pacific Petrochemical Company Ltd.DALIAN | Ф6092 | 2003.04 |
| 11 | Design and manufacture of vacuum tower internals for 8 Mt/a atmospheric and vacuum distillation unit | Sinopec Qilu Petrochemical Company | Ф10800 | 2008.07 |
| 12 | Reconstruction of vacuum tower internals for 8 Mt/a atmospheric and vacuum unit (lubricating oil) | Sinopec Shanghai Gaoqiao Petrochemical Co., Ltd | Ф10200 | 2006.12 |
| 13 | Design and manufacture of vacuum tower internals for 8 Mt/a atmospheric and vacuum distillation device Ⅰ | Sinopec Yanshan Petrochemical Company | Ф9800 | 2005.03 |
| 14 | Design and manufacture of vacuum tower internals for 8 Mt/a atmospheric and vacuum unit | Sinopec Guangzhou Petrochemical Company | Ф8800 | 2004.12 |
| 15 | Design and manufacture of vacuum distillation tower internals for 8 Mt/a atmospheric and vacuum distillation unit | Hainan Shihua Oil Refining Chemical Co., Ltd. | Ф7800 | 2004.11 |
| 16 | Reconstruction of 8 Mt/a 1# atmospheric and vacuum distillation unit | Sinopec Shanghai Jinshan Petrochemical Company Oil Refinery | Ф9000 | 2004.02 |
| 17 | Research and development of vacuum tower for 8 Mt/a atmospheric and vacuum unit (lubricating oil) | Sinopec Shanghai Gaoqiao Petrochemical Co., Ltd | Ф10200 | 2002.06 |
Achievements in primary tower/atmospheric tower/atmospheric stripper
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Materials upgrading of atmospheric and vacuum devices in inferior crude oil processing projects | Cangzhou Branch of Sinopec | Φ3800 | 2017 |
| 2 | Atmospheric and vacuum unit of 10 Mt/a propylene project | Maoming Tianyuan Business Development Co., Ltd. | Φ3200 | 2016.11 |
| 4 | Harmless disposal project for 200,000 t WH-08 | Xinjiang Biqing Technology Environmental Protection Co., Ltd. | Φ1000 | 2016.06 |
| 6 | The 6th tower of 3 million tons of heavy delivery asphalt renovation project | Panjin North Asphalt Fuel Co., Ltd. | Φ2600 | 2015.04 |
| 8 | 3 Mt/a raw material pretreatment unit | Shandong Shouguang Luqing Petrochemical Co., Ltd. | Ф4000 | 2014.11 |
| 9 | Atmospheric and vacuum parts of 2 Mt/a asphalt production plant | Shandong Expressway Hainan Development Co., Ltd. | Ф3000/Ф4000 | 2014.09 |
| 10 | Design and manufacture of atmospheric tower internals | Panjin Shengfeng Chemical Co., Ltd. | Φ800 | 2014.08 |
| 11 | 3 Mt/a fuel oil pretreatment project | Henan Fengli Petrochemical Co., Ltd. | Φ3200 | 2014.06 |
| 12 | Energy-saving and consumption-reducing technical renovation project for 1# atmospheric and vacuum unit | Qingdao Anbang Refining & Chemical Co., Ltd. | Φ800 | 2014.03 |
| 13 |
200, 000 t/a C4 comprehensive utilization project 3 Mt/a asphalt upgrading device |
Panjin Haoye Chemical Co., Ltd. | Φ2600 | 2014.01 |
| 14 | 3.5 Mt/a inferior heavy oil processing unit | Shandong Tianhong New Energy Chemical Co., Ltd. | Φ4800/Φ3400 | 2013.08 |
| 15 | Revamping of atmospheric and vacuum unit | Panjin Huanxiling Asphalt Co., Ltd. | Φ1400 | 2012.11 |
| 16 | 2 Mt/a heavy delivery road asphalt device | Dalian Jinyuan Petrochemical Co., Ltd. | Φ2800 | 2012.09 |
| 17 | 5 Mt/a raw material refining device | Shandong Tianhong Chemical Co., Ltd. | Φ4400 | 2012.07 |
| 18 | Anti-corrosion transformation of flash tower to primary distillation tower for the fourth atmospheric and vacuum unit | Shengli Oil Refinery of Sinopec Qilu Branch | Φ2200/Φ4000 | 2012.05 |
| 19 | 1.5 Mt/a heavy delivery road asphalt device | Hebei Jinrui Xinhai Chemical Co., Ltd. | Φ3200 | 2011.05 |
| 20 | Capacity expansion and quality improvement project for 1 Mt/a heavy delivery asphalt plant | Panjin North Asphalt Co., Ltd. | Φ2400/Φ3400 | 2011.01 |
Achievements in catalytic main fractionator
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | 100, 000 t/a propylene project (catalytic cracking unit) | Maoming Tianyuan Business Development Co., Ltd. | Φ5000 | 2016.11 |
| 2 | Catalytic cracking unit of relocation and reconstruction device for 600,000 t/a catalytic cracking combined plant | Panjin North Asphalt Fuel Co., Ltd. | Φ3800 | 2016.03 |
| 3 | Capacity expansion and transformation project for 600,000 t/a catalytic cracking unit | Shouguang Union Petrochemical Co., Ltd. | Φ3400 | 2015.10 |
| 4 | Tray modification of catalytic fractionation tower in Daqing Petrochemical | PetroChina Daqing Petrochemical Company | Φ4200 | 2015.06 |
| 5 | 1.2 Mt/a catalytic cracking unit in Panjin Baolai | Panjin North Asphalt Fuel Co., Ltd. | Φ4600 | 2013.03 |
Achievements in catalytic absorption and stabilization
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | 50,000 t/a absorption tower of FCC dry gas liquefaction unit | Panjin Haoye Chemical Co., Ltd. | Φ1000 | 2017 |
| 2 | 100, 000 t/a propylene project (catalytic cracking unit) | Maoming Tianyuan Business Development Co., Ltd. | Φ2800 | 2016.11 |
| 3 | Catalytic cracking unit of relocation and reconstruction device for 600,000 t/a catalytic cracking combined plant | Panjin North Asphalt Fuel Co., Ltd. | Φ2200 | 2016.03 |
| 4 | 1.2 Mt/a catalytic cracking unit | Panjin North Asphalt Fuel Co., Ltd. | Φ3600 | 2013.03 |
Achievements in catalytic cracking products refining
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | PMB petrochemical project | Zhejiang Hengyi Group Co., Ltd. | Ф1600 | 2017.03 |
| 2 | 100, 000 t/a propylene project (catalytic cracking unit) | Maoming Tianyuan Business Development Co., Ltd. | Φ2600/Φ2200 | 2016.11 |
| 3 | Solvent regeneration system of potential hazard control of catalytic cracking unit | Baling Petrochemical Branch of China National Chemical Corporation Asset Management Co., Ltd. | Φ1400 | 2012.12 |
| 4 | 2.5 Mt/a catalytic cracking unit | PetroChina Sichuan Petrochemical Co., Ltd. | Φ3400/Φ2800 | 2011.06 |
| 5 | 300,000 t/a catalytic cracking and product refining unit | Algeria SORAL CHIN refinery | Φ800/Φ1200 | 2004.8 |
Achievements in catalytic dry gas recovery ethylene unit
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Ethylene project of catalytic dry gas recovery | Qilu Branch of Sinopec Corp. | Φ1600/Φ2000 | 2010.11 |
1.3 Refining coking
Achievements in coking main fractionator
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Delayed coking reconstruction project in Kazakhstan Pavlodar petrochemical plant | China Nonferrous Metal Construction Co., Ltd. | Ф2600/Φ3800 | 2015.04 |
| 2 | Modification of fractionator in delayed coking unit | Shandong Haihua Co., Ltd. | Φ5000 | 2011.11 |
| 3 | 2 Mt/a coking fractionator internals | PetroChina Jinzhou Petrochemical Company | Ф5000 | 2005.3 |
| 4 | 400,000 t/a coking fractionator internals | Yingkou Jiafu Petrochemical Co., Ltd. | Ф3200 | 2005.1 |
| 5 | Fractionator internals of 1.1 Mt/a coke fractionating unit | PetroChina Urumqi Petrochemical Company | Φ3800 | 2004.2 |
Achievements in coking absorption stabilization
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Tray renovation project | Zibo Luhua Tongfang Chemical Co., Ltd. | Φ1200 | 2017 |
| 2 | Project of desorption tower and absorption tower internals | Chongqing Sixing Construction Co., Ltd. | Φ900 | 2013.07 |
| 3 | Tower internals design | Linyi Yihe Petrochemical Co., Ltd. | Ф1600/2800 | 2013.06 |
| 4 | Absorption tower transformation of maintenance project for joint delayed coking unit in 2012 | China Petroleum & Chemical Corporation Tahe Branch | Φ1600 | 2011.12 |
Achievements in coking products refining
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | 1 Mt/a delayed coking unit of hidden danger rectification project of contact cooling tower for delayed coking unit | Dagang Petrochemical Company | Φ4000 | 2017.01 |
| 2 | Maintenance of joint delayed coking unit in 2012 | China Petroleum & Chemical Corporation Tahe Branch | Φ1600 | 2011.12 |
| 3 | Benzene washing tower of coking unit | Neijiang Bowei Xinyu Chemical Co., Ltd. | Φ3000 | 2011.03 |
| 4 | Desulfurization tower and benzene washing tower of 980,000 t/a coking technical renovation project | Shandong Tengzhou Shenglong Coal Coking Co., Ltd. | Φ6800 | 2010.11 |
| 5 | Desulfurization tower and oxidation tower of liquefied gas for 120 wt/a delayed coking unit of processing Tarim inferior crude oil project | PetroChina Urumqi Petrochemical Company | Φ2600 | 2010.05 |
1.4 Refinery hydrogenation/hydrogen production
Achievements in diesel hydrogenation
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Internals of aviation coal stripping tower and fractionating tower of diesel hydrogenation | Sinochem Quanzhou | Φ2200/Φ3400 | 2017 |
| 2 | 1.5 Mt/a diesel hydrogenation treating unit | Panjin Haoye Chemical Co., Ltd. | Φ2600/Φ3200 | 2017.01 |
| 3 | 100, 000 t/a propylene project (diesel hydrogenation unit) | Maoming Tianyuan Business Development Co., Ltd. | Φ1600/Φ2200 | 2016.11 |
| 4 | National V upgrade adaptive transformation project for 500,000 t/a diesel upgrading and depressing pour point device | China Petroleum Yumen Oilfield Branch Refinery Chemical Plant | Φ1800 | 2016.04 |
| 5 | 300,000 t/a diesel hydrogenation unit | Shandong Shouguang Luqing Petrochemical Co., Ltd. | Φ1000 | 2016.03 |
| 6 | Renovation of tail gas absorption tower for 1.4 Mt/a diesel hydrogenation and supporting project | PetroChina Changqing Petrochemical Company | Φ1000 | 2016.01 |
| 7 | 400,000 t/a diesel hydrogenation renovation project | Shouguang Union Petrochemical Co., Ltd. | Φ1600/1800 | 2015.11 |
| 8 | 3 Mt/a diesel hydrogenation unit | China Petroleum & Chemical Corporation Zhenhai Refining & Chemical Branch | Φ2800/Φ3800 | 2015.10 |
| 9 | 1.2 Mt/a diesel hydrogenation unit for National V oil quality upgrade and reconstruction project | China Petroleum & Chemical Corporation Jiujiang Branch | Φ2400 | 2015.08 |
| 10 | Diesel product upgrade of diesel oil hydrogenation unit for major renovation project in 2015 | North Huajin Chemical Industry Co., Ltd. Refining and Chemical Company | Φ3000/Φ3800 | 2015.02 |
| 11 | Diesel hydrogenation unit and wax hydrogenation unit | Huizhou Refining & Chemical Branch, CNOOC Refining & Chemical Co., Ltd. | Φ2200/Φ4000 | 2015.01 |
| 12 | Diesel project of diesel product quality upgrade and renovation | China Petroleum Qinghai Oilfield Golmud Refinery | Φ1000/Φ1200 | 2014.05 |
| 15 | Diesel product quality upgrade of 1.7 Mt/a mixed diesel hydrogenation unit | China Petroleum Daqing Refining and Chemical Company | Φ4000 | 2013.09 |
| 16 | Energy saving technical renovation of 2# diesel hydrogenation unit | Sinopec Maoming Branch | Φ2200/Φ3000 | 2012.05 |
| 17 | transformation of aviation coal hydrogenation plant for 3 Mt/a diesel hydrogenation and supporting project | Petrochina Lanzhou Petrochemical Company | Φ2400 | 2012.04 |
| 18 | Expansion and renovation of 2.6 Mt/a diesel hydrogenation unit | Sinopec Qilu Branch | Φ2000/Φ3200 | 2012.03 |
Achievements in gasoline hydrogenation
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Gasoline hydrogenation unit for 100,000 t/a propylene project | Maoming Tianyuan Business Development Co., Ltd. | Φ1800/Φ2200 | 2016.11 |
| 2 | Light and heavy gasoline cutting tower of 250,000 t/a gasoline hydrogenation unit | China Petroleum & Chemical Corporation Zhongyuan Oilfield Branch Petrochemical Plant | Φ1400/Φ1800 | 2016.10 |
| 3 | National V quality upgrading and supporting project of 1.8 Mt/a catalytic gasoline hydrodesulfurization device | PetroChina Lanzhou Petrochemical Company | Φ4100/Φ5400 | 2016.01 |
| 4 | 600,000 t/a gasoline hydrogenation renovation project and 600,000 t/a gasoline hydrodesulfurization unit tower internal parts | Sinochem Hongrun Petrochemical Co., Ltd. | Φ2600/Φ3000 | 2015.12 |
| 5 | 300,000 t/a gasoline hydrogenation transformation of Gasoline and diesel oil upgrade National V project | Shouguang Union Petrochemical Co., Ltd. | Φ800/Φ1400 | 2015.11 |
| 6 | Nine tower internals such as debutanizer of ethylene plant and decarbonization nine tower of pyrolysis gasoline hydrogenation unit | Huizhou Refinery Branch of CNOOC Refining & Chemical Co., Ltd. | Φ5000 | 2015.01 |
| 7 | Design and manufacture of 1.2 Mt/a catalytic gasoline hydrogenation unit internals | Dalian West Pacific Petrochemical Co., Ltd. | Ф3200/Φ3800 | 2014.12 |
| 8 | Reformation of the carbon-five separation unit of cracking gasoline hydrogenation unit | Sino-Korea Petrochemical Wuhan Ethylene | Φ1400 | 2014.04 |
| 9 | 1 Mt/a catalytic gasoline hydrodesulfurization unit | Panjin North Asphalt Fuel Co., Ltd. | Ф2800 | 2013.07 |
| 10 | 100,000 t/a young gasoline etherification and supporting 300,000 t/a gasoline hydrogenation renovation project | Shouguang Union Petrochemical Co., Ltd. | Φ2200 | 2013.01 |
| 11 | Gasoline hydrodesulfurization device of supporting project of sulfur crude oil processing | PetroChina Guangxi Petrochemical Company | Ф4900 | 2012.06 |
| 12 | Transformation of 650,000 t/a cracking gasoline hydrogenation unit | Fujian United Petrochemical Co., Ltd. | Φ5000 | 2012.05 |
| 13 | Renovation project of catalytic gasoline hydrogenation unit | Sinopec Zhanjiang Dongxing Petrochemical Co., Ltd. | Φ2600 | 2011.11 |
| 14 | 100,000 t/a gasoline hydrogenation unit of shale oil chemical deep processing demonstration project | Fushun Mining Group Co., Ltd. | Φ800 | 2011.09 |
Achievements in aromatic hydrogenation
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | 250,000 t/a crude benzene hydrogenation project | Xinyang Technology Group Co., Ltd. | Φ1800 | 2014.04 |
| 2 | 100,000 t/a anthracene oil hydroconversion engineering | Shandong Hengxin Technology Development Co., Ltd. | Φ2400 | 2014.04 |
| 3 | Renovation project of Jinyuan crude benzene hydrogenation unit | Jinyuan Jinyuan Chemical Co., Ltd. | Φ1800 | 2014.01 |
| 4 | 500, 000 t/a aromatics hydrofining unit of high-sulfur and high-acid feedstock oil deep processing | Shandong Tianhong New Energy Chemical Co., Ltd. | Φ1600/2400 | 2013.10 |
| 5 | 100, 000 t/a benzene hydrogenation transformation project | Weifang Zhenxing Risheng Chemical Co., Ltd. | Φ2000 | 2012.09 |
| 6 | 50,000t/a crude benzene full fraction hydrogenation unit | Hunan Zhongling Chemical Co., Ltd. | Ф1400 | 2012.04 |
| 7 | 100,000 t/a low aromatic solvent oil hydrogenation unit | Panjin Hongye Petrochemical Co., Ltd. | Ф3000 | 2012.01 |
Achievements in aviation kerosene hydrogenation
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Internals of the product fractionator (C-101) of aviation kerosene hydrogenation unit | PetroChina Lanzhou Petrochemical Company | Φ1000/2000 | 2013.12 |
| 2 | Design and manufacture of column internals of 600,000 t/a aviation oil hydrogenation unit for adaptive renovation project of processing high-sulfur and high-acid crude oil | Qilu Branch of China Petroleum & Chemical Corporation | Φ1600/2400 | 2013.05 |
| 3 | Retrofit of 400,000 t/a aviation kerosene hydrogenation unit | PetroChina Jinzhou Petrochemical Company | Φ2000 | 2005.05 |
Achievements in other hydrogenation units
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Reformation of new-building reboiler of second hydrogenation fractionation tower in Maoming Petrochemical | Sinochem Hongrun Petrochemical Co., Ltd. | Φ2200/Φ3000 | 2016.01 |
| 2 | 300,000 t/a naphthenic distillate hydrogenation plant | Panjin North Asphalt Co., Ltd. | Ф4000/Φ2600/Φ1300 | 2015.09 |
| 3 | 400,000 t/a paraffin-based high-pressure hydrogenation lubricating oil device | CNOOC (Taizhou) Petrochemical Co., Ltd. | Φ3000/Φ4400/Φ1800 | 2014.07 |
| 4 | 2.8 million tons of hydrogenation upgrading equipment | China National Gas Corporation Jinzhou Branch | Φ3000/4600 | 2013.12 |
| 5 | 40,000 t/a butadiene tail gas hydrogenation plant | Maoming Branch of China Petroleum & Chemical Corporation | Φ1200 | 2013.08 |
| 6 | Hydrofining unit and hydrocracking unit in oil processing unit | Shanxi Lu'an Mining (Group) Co., Ltd. | Ф3800/3200 | 2013.06 |
| 7 | 300, 000 t/a viscosity reduction renovation project | Karamay Petrochemical Company | Ф2600 | 2013.04 |
| 8 | Project of 200, 000 t/a animal and plant oil hydrogenation for diesel production | Liaoning Baolai Bio Energy Co., Ltd. | Φ2000 | 2013.01 |
| 9 | 550, 000 t/a hydrogenation plant for lubricating oil | China Petroleum & Chemical Corporation Jingmen Branch | Φ1800 | 2012.07 |
| 10 | 800, 000 t/a hydrofining plant | Hebei Xinhai Chemical Co., Ltd. | Φ2600 | 2012.04 |
| 11 | 800, 000 t/a prefractionation unit for hydrotail-oil | Liaoning Huajin Tongda Chemical Co., Ltd. | Φ4600/Φ2400 | 2012.01 |
| 12 | 450, 000 t/a hydrogenation plant for lubricating oil | Liaoning Huajin Tongda Chemical Co., Ltd. | Φ1600 | 2011.10 |
| 13 | Renovation of fractionating tower of 1.2 Mt/a hydrofining unit | PetroChina Daqing Petrochemical Company | Φ2600 | 2011.02 |
| 14 | Internals renovation projectof stabilization tower | Kazakhstan PK Refinery | Φ2200/Φ3200 | 2011.01 |
1.5 Catalytic reforming
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | 1.5 Mt/a continuous reforming plant | Dalian West Pacific Petrochemical Co., Ltd. | Φ1000/Φ1400 | 2016.05 |
| 2 | Additional building of benzene tower project of 600, 000 t continuous reforming | China National Petroleum Corporation Dalian Petrochemical Branch | Φ1200 | 2014.08 |
| 3 | C8 separation unit of 1.2 Mt/a continuous reforming | Panjin North Asphalt Fuel Co., Ltd. | Φ3600/Φ4000 | 2014.08 |
| 4 | 600, 000 t/a continuous reforming unit of product quality upgrade project | PetroChina Dagang Petrochemical Company | Ф2600 | 2013.11 |
| 5 | 1.5 Mt/a continuous reforming plant | Dalian West Pacific Petrochemical Co., Ltd. | Φ3000/4000 | 2013.05 |
| 6 | Continuous reforming plant | Sinopec Maoming Branch Oil Refining Branch | Φ2200 | 2012.12 |
1.6 Sulfur recovery
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Solvent regeneration tower and main stripping tower of the 5,000 t/a sulfur recovery plant for hidden danger treatment project in Golmud Refinery | PetroChina Qinghai Oilfield Branch | Φ1600 | 2016.06 |
| 2 | 300, 000 t/a diesel hydrogenation unit, 30, 000 t/a sulfur recovery unit, and 150 t/h solvent regeneration unit | Shandong Shouguang Luqing Petrochemical Co., Ltd. | Φ1200/Φ2400 | 2016.03 |
| 3 | 240 t/h solvent regeneration unit in the second phase of relocation and reconstruction project | Panjin North Asphalt Fuel Co., Ltd. | Φ3600 | 2015.11 |
| 4 | Sulfuration plant project of Kazakhstan Pavlodar petrochemical plant | China Nonferrous Metal Construction Co., Ltd. | Φ2500 | 2015.09 |
| 5 | Modification of sulfur recovery unit | Dongying United Petrochemical Co., Ltd. | Φ1200/Φ2000/Φ2200 | 2015.04 |
| 6 | Sulfur recovery unit of phase II project of Huizhou Refinery | Huizhou Refinery Branch of CNOOC Refining & Chemical Co., Ltd. | Φ3200 | 2015.02 |
| 7 | Newly built process unit of 80,000 t/a sulfur recovery combined plant | Sinopec Wuhan Branch | Φ2200/Φ3000 | 2015.01 |
| 8 | Column internals of standard transformation project of sulfur plant tail gas | Sinopec Qingdao Refinery Chemical Co., Ltd. | Ф4200 | 2014.09 |
| 9 | Transformation project of safety hidden danger management technology of the first sulfur recovery plant | Sinopec Qilu Branch | Φ4500 | 2014.08 |
| 10 | Reconstruction of 380, 000 t/a sulfur recovery unit of Sinochem Quanzhou | Sinochem Quanzhou Petrochemical Co., Ltd. | Φ4000 | 2014.08 |
| 11 | 20, 000 t/a sulfur recovery unit of diesel quality upgrade project | PetroChina Jilin Petrochemical Company Refinery | Φ1800 | 2014.02 |
| 12 | 30, 000 t/a sulfur recovery combined device of olefin production project from heavy wax oil cracking | CNOOC Ningbo Daxie Petrochemical Co., Ltd. | Φ2200/Φ3000 | 2013.10 |
| 13 | Combined sulfur recovery unit for large mixed aromatics and supporting engineering project | Dongying United Petrochemical Co., Ltd. | Φ2600 | 2013.08 |
| 14 | IV joint project of aromatic hydrocarbon project | Ningbo Zhongjin Petrochemical Co., Ltd. | Φ3000 | 2012.09 |
| 15 | Sulfur recovery combined device for 60,000 t/a aromatic raw material oil refining and auxiliary facility project | Dalian Wanfang Chemical Co., Ltd. | Φ2800 | 2012.09 |
| 16 | 80, 000 tons of sulfur recovery unit of oil quality upgrading and crude oil quality improvement project | China Petroleum & Chemical Corporation Shijiazhuang Refining & Chemical Branch | Φ2800 | 2012.04 |
| 17 | Sulfur recovery unit of supporting crude oil processing project | PetroChina Guangxi Petrochemical | Φ5200 | 2012.04 |
| 18 | The second 60, 000 t/a sulfur recovery unit of oil product upgrading and expansion project | China Petroleum & Chemical Corporation Changling Branch | Φ2600 | 2012.03 |
| 19 | 380, 000 t/a sulfur recovery combined plant of 12 Mt/a oil refining project | Sinochem Quanzhou Petrochemical Co., Ltd. | Φ4000 | 2012.02 |
| 20 | 140, 000 t/a sulfur recovery unit for oil quality upgrade and crude oil degradation project | Sinopec Yangzi Petrochemical Co., Ltd. | Φ4200 | 2012.02 |
1.7 Acidic water stripping
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Solvent regeneration tower and main stripping tower of the 5,000 t/a sulfur recovery plant for hidden danger treatment project in Golmud Refinery | PetroChina Qinghai Oilfield Branch | Φ1600 | 2016.06 |
| 2 | 300, 000 t/a diesel hydrogenation unit, 30, 000 t/a sulfur recovery combined unit | Shandong Shouguang Luqing Petrochemical Co., Ltd. | Φ1200/Φ2400 | 2016.03 |
| 3 | Sulfuration unit of Kazakhstan Pavlodar petrochemical plant | China Nonferrous Metal Construction Co., Ltd. | Φ2500 | 2015.09 |
| 4 | Main stripping tower renovation project | Sinopec Zhanjiang Dongxing Petrochemical Co., Ltd. | Φ1200/Φ2000/Φ2200 | 2015.06 |
| 5 | Process unit of 80, 000 t/a sulfur recovery combined plant | Sinopec Wuhan Branch | Φ2200/Φ3000 | 2015.01 |
| 6 | Modification of main stripper | Panjin North Asphalt Fuel Co., Ltd. | Φ800/Φ1800/Φ2000 | 2013.10 |
| 7 | 30, 000 t/a sulfur recovery combined device of olefin production project from heavy wax oil cracking | CNOOC Ningbo Daxie Petrochemical Co., Ltd. | Φ2200/Φ3000 | 2013.10 |
| 8 | 140 t/h acid water stripping device of product quality upgrade project= | PetroChina Dagang Petrochemical Company | Φ2600 | 2013.09 |
| 9 | Acid water stripping and solvent regeneration unit modification of sulfur recovery combined unit | PetroChina Changqing Petrochemical Company | Φ800/Φ1400/Φ1600 | 2013.07 |
| 10 | 60 t/h sulfur-containing sewage stripping device of 1 Mt/a residual oil deep processing project | Panjin North Asphalt Fuel Co., Ltd. | Φ800/Φ1800/Φ2000 | 2013.04 |
| 11 | 80 t/h acid water stripping unit renovation of 1.8 Mt/a catalytic cracking unit and supporting facilities technical renovation project | Shaanxi Yanchang Petroleum (Group) Co., Ltd. Yulin Refinery | Φ1800 | 2013.03 |
| 12 | IV joint project of aromatic hydrocarbon project | Ningbo Zhongjin Petrochemical Co., Ltd. | Φ3000 | 2012.09 |
| 13 | Sulfur recovery combined device of 60,000 t/a aromatic raw material oil refining and auxiliary facility project | Dalian Wanfang Chemical Co., Ltd. | Φ2800 | 2012.09 |
| 14 | Inner parts renovation project of solvent regeneration tower and acid water stripping tower | PetroChina Qingyang Petrochemical Company | Φ1600 | 2012.03 |
| 15 | 140, 000 t/a sulfur recovery unit of oil quality upgrade and crude oil degradation project | Sinopec Yangzi Petrochemical Co., Ltd. | Φ4200 | 2012.02 |
| 16 | Renovation project of acid water stripper | Shaanxi Changqing Petrochemical Auxiliary Factory | Φ800/Φ1400/Φ1600 | 2011.08 |
| 17 | Adaptability transformation of sulfur crude oil processing and oil quality upgrading project | China Petroleum & Chemical Corporation Anqing Branch | Φ1400/Ф2600/Ф2800 | 2011.06 |
