2.Integration of key technologies for ethylene industrial towers separation
2.1 Ethylene plant quench separation
2.2 Ethylene plant and other tower
2.3 Gas fractionation
2.4 MTBE unit
2.5 C4 separation/C5 separation/rubber
Achievements in MTO/MTP
Achievements in butadiene
Achievements in other devices
2.6 Polypropylene
2.7 Styrene/ethylbenzene
Achievements in dehydrogenation of ethylbenzene to styrene
Achievements in C8 extraction of styrene
2.8 Ethylene oxide/ethylene glycol
Achievements in petroleum process of ethylene oxide/ethylene glycol
Achievements in coal to ethylene glycol
2.9 Ethanolamine/ ethylene polyamine
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Cracking device for deep processing and comprehensive utilization project of by-product | Shenhua Ningxia Coal Industry Group Co., Ltd. | Φ6500/Φ8800 | 2015.01 |
| 2 | Plant renovation of 1 Mt/a ethylene project | Sinopec Zhenhai Refining & Chemical Branch | Φ13200 | 2014.01 |
| 3 | Renovation project of hydrofining plant of ethylene raw material engineering | Liaoning Huajin Tongda Chemical Co., Ltd. | Φ1600/Φ2600 | 2013.08 |
| 4 | 990, 000 t/a ethylene plant renovation of ethylene plant debottleneck renovation project | Fujian United Petrochemical Co., Ltd. | Φ11500 | 2012.12 |
| 5 | Maintenance of Dushanzi ethylene plant in 2011 | PetroChina Dushanzi Petrochemical Company | Φ4100 | 2011.09 |
| 6 | Ethylene plant renovation of 660, 000 t/a ethylene expansion project | Sinopec Beijing Yanshan Branch | Φ11000 | 2011.07 |
| 7 | Modification of gasoline fractionating tower internals | Sinopec Zhongyuan Petrochemical Co., Ltd. | Φ5400 | 2011.03 |
| 8 | Quench oil tower of 800, 000 t/a ethylene project | Wuhan Branch of Sinopec Corp. | Φ11500 | 2011.01 |
2.2 Ethylene plant and other tower
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Internals renovation project for DA-102 tower of ethylene plant | China Petroleum & Chemical Corporation Beijing Yanshan Branch | Φ2200 | 2016.01 |
| 2 | Cracking unit of by-product deep processing and comprehensive utilization project | Shenhua Ningxia Coal Industry Group Co., Ltd. | Φ1900 | 2015.01 |
| 3 | 1.2 Mt/a ethylene renovation and expansion project | PetroChina Daqing Petrochemical Company | Φ3800 | 2014.05 |
| 4 | 200, 000 t/a industrial isooctane project | Qinzhou Tianheng Petrochemical Co., Ltd. | Φ2400/2000 | 2013.04 |
| 5 | 990, 000 t/a ethylene plant renovation of ethylene plant debottleneck renovation project | Fujian United Petrochemical Co., Ltd. | Φ2400 | 2012.10 |
| 6 | Product refining unit of ethylene raw material engineering optimization and energy-saving renovation project | Liaoning Huajin Tongda Chemical Co., Ltd. | Φ2600/2200 | 2012.01 |
| 7 | Renovation of alkaline water washing tower for vinyl plant in the old area | Dushanzi Petrochemical Company of China National Petroleum Corporation | Ф2300 | 2011.04 |
| 8 | 800, 000 t/a ethylene project | Sinopec Wuhan Branch | Φ2600 | 2011.01 |
2.3 Gas fractionation
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | 1 Mt/a light hydrocarbon comprehensive utilization project | Shandong Yuhuang Shengshi Chemical Co., Ltd. | Φ4800 | 2017.02 |
| 2 | Gas separation unit of 100, 000 t/a propylene project | Maoming Tianyuan Business Development Co., Ltd. | Φ3800 | 2016.11 |
| 3 | Cracking unit of by-product deep processing and comprehensive utilization project | Shenhua Ningxia Coal Industry Group Co., Ltd. | Φ6600 | 2015.01 |
| 4 | Propylene-propane separation tower internals | Shandong Jianlan Chemical Co., Ltd. | Φ1500 | 2013.12 |
| 5 | 500, 000 t/a propane dehydrogenation project | Hebei Haiwei Transportation Facilities Group Co., Ltd. | Φ8300 | 2013.10 |
| 6 | 660, 000 t/a propane dehydrogenation project | New chemical project in Zhongjing Petrochemical Park | Ф2900/Φ5400 | 2013.04 |
| 7 | Olefin separation unit of 500, 000 t/a engineering plastics project | Inner Mongolia China Coal Mengda New Energy Chemical Co., Ltd. | Φ3300 | 2013.04 |
| 8 | Depentanizer renovation project of 100, 000 t/a gas separation unit | Xinjiang Xinfeng Co., Ltd. | Φ2200 | 2013.04 |
| 9 | Gas fractionation project in Panjin Baolai | Panjin North Asphalt Fuel Co., Ltd. | Φ3600 | 2013.03 |
| 10 | 100, 000 t/a gas fractionation unit, 250, 000 t/a catalytic gasoline treatment unit | China Petroleum Qinghai Oilfield Golmud Refinery | Ф2200 | 2013.02 |
| 11 | 990, 000 t/a ethylene plant renovation of ethylene plant debottleneck renovation project | Fujian United Petrochemical Co., Ltd. | Φ2600 | 2012.12 |
| 12 | 600,000 t/a propane dehydrogenation device of propane and mixed C4 utilization project | Ningbo Haiyue New Material Co., Ltd. | Φ9000 | 2012.08 |
| 13 | Olefin separation and C4 comprehensive utilization plant | China Coal Shaanxi Yulin Energy Chemical Co., Ltd. | Φ2200/Φ3300 | 2012.07 |
| 14 | N-butane plant and system supporting engineering | Sinopec Jinling Branch | Φ3200 | 2011.06 |
| 15 | 800, 000 t/a ethylene project | Sinopec Wuhan Branch | Φ2600 | 2011.01 |
2.4 MTBE unit
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Extraction distillation column internals for MTBE product desulfurization technology | Sinochem Quanzhou Petrochemical Company | Φ1800 | 2017.01 |
| 2 | MTBE renovation project | Dalian West Pacific Petrochemical Co., Ltd. | Φ1200/Φ1600 | 2014.11 |
| 3 | 100, 000 t/a MTBE project | Shijiazhuang Dingying Chemical Co., Ltd. | Φ2200/Φ1800 | 2014.11 |
| 4 | C4 stripping tower | Shandong Shouguang Luqing Petrochemical Co., Ltd. | Φ1000 | 2014.08 |
| 5 | Modification of the desulfurization system for 100, 000 tons of MTBE plant | Maoming Branch of China Petroleum & Chemical Corporation | Φ1600 | 2014.06 |
| 6 | Desulfurization modification of MTBE unit | China National Petroleum Corporation Dalian Petrochemical Branch | Φ2600/Φ2000 | 2014.01 |
| 7 | Desulfurization transformation project of MTBE product | Jilin Jinjiang Oil Chemical Plant of Jihua Group | Φ1600 | 2013.09 |
| 8 | Modification of 114,000 t/a isobutane dehydrogenation and 180, 000 t/a MTBE plant | Liaoning Tongyi Petrochemical Co., Ltd. | Φ900/1800 | 2013.03 |
| 9 | MTBE product desulfurization | PetroChina Jinzhou Petrochemical Company | Φ1000 | 2012.07 |
| 10 | MTBE device of the second rubber factory of Yanshan Petrochemical | China Petroleum & Chemical Corporation Beijing Yanshan Branch | Φ2000/Φ1600 | 2012.06 |
| 11 | 20,000 t/a MTBE butene-1 device | Shenhua Baotou Coal Chemical Branch | Φ2400 | 2011.06 |
| 12 | MTBE device of shale oil deep processing project | Fushun Mining Group Co., Ltd. | Φ2400 | 2011.03 |
| 13 | MTBE unit of 600,000 t/a catalytic cracking unit | Panjin North Asphalt Fuel Co., Ltd. | Φ2400/Φ1600 | 2011.02 |
2.5 C4 separation/C5 separation/rubber
Achievements in MTO/MTP
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Inner parts modification of olefin separation packed tower for expansion and renovation project of DMTO unit | Shandong Lianhong New Material Co., Ltd. | Φ2200 | 2017 |
| 2 | Modification project of MTO device | Nanjing Chengzhi Clean Energy Co., Ltd. | Φ1300 | 2017.02 |
| 3 | Oxidation absorption tower of MTO device of 250,000 t/a butyl octanol project | Wison (Nanjing) Clean Energy Co., Ltd. | Φ1400/Φ2200 | 2016.02 |
| 4 | Isomerization unit of olefin separation device for 3.6 Mt/a coal-to-methanol and its deep processing project | China Coal Shaanxi Yulin Energy Chemical Co., Ltd. | Φ2600 | 2016.01 |
| 5 | Quenching tower renovation of 2 × 1.8 Mt/a MTO plant of Ordos coal deep processing demonstration project | Zhongtian Hechuang Energy Co., Ltd. | Ф6800 | 2015.12 |
| 6 | Adaptive modification project of MTO pilot plant | China Petroleum & Chemical Corporation Beijing Yanshan Branch | Φ1000 | 2015.10 |
| 7 | 8 towers of 900,000 t/a methanol-to-olefins (MTO) unit for the first phase of alcohol-based polygeneration | Jiangsu Silbon Petrochemical Co., Ltd. | Ф2100/Φ4000 | 2015.02 |
| 8 | Annual processing 600, 000 tons of methanol to 200, 000 tons of polypropylene (FMTP) technology demonstration project | Huating Coal Industry Group Co., Ltd. | Φ5400 | 2014.10 |
| 9 | 1 Mt/a methanol to olefin, 500,000 t/a styrene, 1 Mt/a DMTO unit | Fude (Changzhou) Energy Chemical Development Co., Ltd. | Φ5400 | 2014.03 |
| 10 | 1.8 Mt/a MTO device | Jiutai Energy (Zhunger) Co., Ltd. | Φ1700/Φ2600 | 2013.12 |
| 11 | Olefin separation unit of 1 Mt/a DMTO project | Shandong Shenda Chemical Co., Ltd. | Φ2200 | 2013.09 |
| 12 | Olefin separation unit of DMTO project | Shaanxi Pucheng Clean Energy | Φ3200 | 2013.08 |
| 13 | Oxide extractor coalescer and extractor coalescer of MTP device | Datang Inner Mongolia Duolun Coal Chemical Co., Ltd. | Φ4400 | 2012.04 |
Achievements in butadiene
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | 30,000 t/a butadiene transparent anti-impact resin project | Liaoning Kaidi Chemical Co., Ltd. | Φ1800 | 2015.10 |
| 2 | 1 to 3 packages of 100, 000 t/a butadiene unit (BID) for the first phase of alcohol base coproduction project | Jiangsu Silbon Petrochemical Co., Ltd. | Φ1600/Φ2400 | 2014.05 |
| 3 | Building residual liquid de-weighting rectification tower of butadiene plant | Sinopec Maoming Branch | Φ600 | 2012.11 |
| 4 | Internals of 70,000 t/a oxidation dehydrogenation unit to produce dibutene | Shandong Heze Yuhuang Chemical Co., Ltd. | Φ4000 | 2012.09 |
| 5 | 100, 000 t/a butadiene project | Shandong Huamao New Materials Co., Ltd. | Φ1800 | 2012.09 |
| 6 | 150, 000 t/a butadiene project | Shandong Wanda Chemical Co., Ltd. | Φ3000/Φ3800 | 2012.07 |
| 7 | 100, 000 t/a butadiene project | Huayu Rubber Co., Ltd. | Φ3000/Φ3800 | 2012.05 |
| 8 | Renovation project of T-424 butadiene washing tower system of butadiene plant | Sinopec Beijing Yanshan Branch No. 1 Rubber Factory | Φ1600 | 2011.04 |
Achievements in other devices
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Technical transformation of tower of No.2 rubber polymerization workshop in No.3 chemical plant | Daqing Petrochemical Machinery Plant | Φ1400 | 2016.03 |
| 2 | Transformation project of deisobutane column | Dongying Kede Chemical Co., Ltd. | Φ2400 | 2016.02 |
| 3 | Technical transformation project of 200,000 t/a high standard environmentally friendly rubber oil refining | China Shipping Asphalt Co., Ltd. | Φ2400 | 2015.12 |
| 4 | Tower internals of 200, 000 t/a C4 deep processing project | Ningxia Jinyuhai Chemical Co., Ltd. | Ф2400/Φ3000 | 2015.07 |
| 5 | Separation unit of C4 deep processing project | Shida Shenghua | Φ2600 | 2014.07 |
| 6 | Retrofit of 500,000 t/a C4 separation unit | Daqing Zhonglan Petrochemical Co., Ltd. | Φ5600 | 2014.03 |
| 7 | 200,000 t/a isobutane dehydrogenation project | Shandong Shouguang Luqing Petrochemical Co., Ltd. | Φ4000/Φ4200 | 2014.02 |
| 8 | Retrofit of 500, 000 t/a C4 separation unit | Guangxi Xinxin Energy Technology Co., Ltd. | Φ2600/3000 | 2013.12 |
| 9 | An annual output of 145, 000 tons of isobutene project | Shandong Longgang Chemical Co., Ltd. | Φ3000/3600 | 2013.12 |
| 10 | C4 comprehensive utilization device | Inner Mongolia China Coal Mengda New Energy Chemical Co., Ltd. | Φ2400 | 2013.10 |
| 11 | Phase I project of comprehensive utilization of C4 | Hebei Haite Weiye Petrochemical Co., Ltd. | Ф3400 | 2013.06 |
| 12 | 100,000 t/a mixed C4 deep processing project | Shouguang Union Petrochemical Co., Ltd. | Φ3000 | 2013.04 |
| 13 | Liquid chlorine storage and vaporization unit tower internals of 30,000 t/a halogenated butyl rubber project | Panjin Heyun New Material Co., Ltd. | Ф1800 | 2013.04 |
| 14 | 40,000 t/a methyl ethyl ketone unit | Ningbo Haiyue New Material Co., Ltd. | Φ2600 | 2013.01 |
| 15 | 30,000 t/a rubber filling oil project | Zibo Huijia Rubber New Material Co., Ltd. | Φ800/Φ1200 | 2013.01 |
| 16 | Hydrogenation device of 100,000 t/a cycloalkyl lubricating oil | Panjin Hongye Petrochemical Co., Ltd. | Φ1000/Φ1400 | 2013.01 |
| 17 | 500, 000 t/a C4 deep processing project | Panjin North Asphalt Fuel Co., Ltd. | Φ2400 | 2012.09 |
| 18 | Olefin separation and C4 comprehensive utilization plant | China Coal Shaanxi Yulin Energy Chemical Co., Ltd. | Φ2200/Φ3300 | 2012.07 |
| 19 | 150,000 t/a C5 separation unit of Yanhua No. 1 Chemical Plant | China Petroleum & Chemical Corporation Beijing Yanshan Branch | Φ2000 | 2012.02 |
| 20 | C4 comprehensive utilization project | Shenhua Baotou Coal Chemical Co., Ltd. | Φ2300 | 2012.01 |
2.6 Polypropylene
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Polypropylene plant of deep processing and comprehensive utilization of coal chemical by-products | Shenhua Ningxia Coal Industry Group Co., Ltd. | Φ1200/Φ2600 | 2015.06 |
| 2 | Propylene stripper of 300,000 tons PP unit | Fude (Changzhou) Energy Chemical Development Co., Ltd. | Φ1300 | 2015.04 |
| 3 | HDPE device, LLDPE device and PP device for the second phase of refinery project | Huizhou Refinery Branch of CNOOC Refining & Chemical Co., Ltd. | Φ2000/Φ3300 | 2015.02 |
| 4 | Polypropylene plant of Ganhe olefin project | Qinghai Damei Coal Industry Co., Ltd. | Ф1525/Ф2100/Ф3050 | 2014.11 |
| 5 | 300, 000 t/a polypropylene plant for downstream projects of methanol processing | Shenhua Coal-to-Liquid Chemical Co., Ltd. Yulin Chemical Branch | Φ1300/Φ2200 | 2013.11 |
| 6 | Polypropylene plant with an annual output of 500, 000 tons of engineering plastics project | Inner Mongolia China Coal Mengda New Energy Chemical Co., Ltd. | Φ1300 /Φ2000 | 2013.09 |
| 7 | 32,000 tons of propylene chloride unit | Baling Branch | Φ900/Φ1400 | 2013.09 |
| 8 | 200,000 t/a polypropylene plant | Shandong Shenda Chemical Co., Ltd. | Φ1400/Φ2100 | 2013.08 |
| 9 | 600,000 t/a polypropylene first phase project | Hebei Haiwei Transportation Facilities Group Co., Ltd. | Φ1200 | 2012.07 |
| 10 | 500,000 t/a polypropylene project of MTO | Shenhua Ningxia Coal Industry Group Co., Ltd. | Φ1200/Φ2300 | 2012.05 |
| 11 | Tower inner parts of 15,000 tons of propylene chloride project | Rizhao Lanxing Chemical Industry Co., Ltd. | Φ1200 | 2012.05 |
| 12 | 250,000 t/a HDPE device of synthetic resin product structure adjustment project | Sinopec Qilu Branch | Φ400/Φ800 | 2011.11 |
| 13 | 200,000 t/a polypropylene plant | Xuzhou Haitian Petrochemical Co., Ltd. | Φ900/Φ1400 | 2011.04 |
2.7 Styrene/ethylbenzene
Achievements in dehydrogenation of ethylbenzene to styrene
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Process technology transformation project of 200,000 t/a ethanol process ethylbenzene-styrene renovation and expansion project | Shandong Heze Yuhuang Chemical Co., Ltd. | Φ3600 | 2017.01 |
| 2 | Tower inner parts of 260,000 t/a styrene plant | Anhui Haoyuan Chemical Group Co., Ltd. | Φ3600 | 2016.09 |
| 3 | Maintenance and replacement of internals of 150,000 t/a styrene unit | North Huajin Chemical Industry Co., Ltd. | Φ5300 | 2015.03 |
| 4 | 60,000 t/a styrene plant of 80, 000 t/a catalytic dry gas to styrene project | Shandong Shengyuan Petrochemical Technology Co., Ltd. | Φ3600 | 2013.07 |
| 5 | Styrene unit of 120,000 t/a ethylbenzene/styrene project | CNOOC Dongfang Petrochemical Co., Ltd. | Φ4200 | 2013.05 |
| 6 | 100,000 tons of ethylbenzene transformation project | PetroChina Dalian Petrochemical Company | Ф1200 | 2013.04 |
| 7 | 500,000 t/a styrene plant | Tianjin Dagu Chemical Co., Ltd. | Φ1800 | 2012.12 |
| 8 | 60,000 t/a ethylbenzene/styrene project | Sinopec Zhanjiang Dongxing Petrochemical Co., Ltd. | Φ2000 | 2012.07 |
| 9 | Tower inner parts renovation project of ethylbenzene unit in styrene plant maintenance | North China Petrochemical Company, China National Petroleum Corporation | Φ3200 | 2011.11 |
| 10 | 200,000 t/a styrene modification | Shandong Heze Yuhuang Chemical Co., Ltd. | Φ3200 | 2011.09 |
| 11 | 320,000 t/a styrene project | PetroChina Jilin Petrochemical Company | Ф1800 | 2011.02 |
| 12 | Ethylbenzene unit of 50,000 t/a styrene project | PetroChina North China Petrochemical Company | Φ3200 | 2011.01 |
Achievements in C8 extraction of styrene
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | 27,000 t/a C8 extraction of styrene unit | China Petroleum & Chemical Corporation Beijing Yanshan Branch | Φ1500 | 2016.02 |
| 2 | 35,000 t/a styrene extraction device of styrene recovery project | Zhongsha (Tianjin) Petrochemical Co., Ltd. | Φ3600 | 2015.03 |
| 3 | Modification of tower inner parts of 30,000 t/a styrene extraction unit | Guangdong Xinhuayue Petrochemical Company | Φ1400 | 2014.07 |
| 4 | C8 extraction of styrene unit of xylene capacity expansion project | China Petroleum & Chemical Corporation Beijing Yanshan Branch | Φ3100 | 2013.11 |
| 5 | 40,000 t/a styrene recycling project from crude gasoline | Xinjiang Dushanzi Tianli Industrial Corporation | Φ4600 | 2013.09 |
| 6 | 27,000 t/a styrene extraction unit of pyrolysis gasoline extraction project | Liaoning Huajin Tongda Chemical Co., Ltd. | Φ3200 | 2012.08 |
2.8 Ethylene oxide/ethylene glycol
Achievements in petroleum process of ethylene oxide/ethylene glycol
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Solvent project of 20,000 t/a new energy lithium battery electrolyte | Oak Chemical Yangzhou Co., Ltd. | Φ1400 | 2016.05 |
| 2 | Tower Internals of 200,000 t/a ethylene oxide plant | Sinopec Maoming Branch | Ф5800 | 2015.09 |
| 3 | Ethylene oxide conversion project | China National Petroleum Corporation Jilin Petrochemical Company Ethylene Glycol Plant | Ф3000 | 2015.05 |
| 4 | Ethylene oxide/ethylene glycol unit | Sinopec Zhenhai Refining & Chemical Branch | Φ4200 | 2014.06 |
| 5 | 120,000 t/a EO unit | Shandong Haoda Chemical Co., Ltd. | Φ1400 | 2014.05 |
| 6 | Tower inner parts of ethylene glycol refining project | Sinopec Yizheng Chemical Fiber Co., Ltd. | Φ900 | 2014.03 |
| 7 | 200,000 t/a ethylene oxide project | Taixing Jinyan Chemical Technology Co., Ltd. | Φ2200/4000 | 2013.12 |
| 8 | 180,000/400,000 t/a ethylene oxide/ethylene glycol | Fujian United Petrochemical Co., Ltd. | Φ3700/4800 | 2013.09 |
| 9 | 120,000 t/a EO unit | Shandong Haoda Chemical Co., Ltd. | Φ2300 | 2013.08 |
| 10 | Ethylene glycol refining tower | Jiangsu Zhongbai Technology Development Co., Ltd. | Φ900 | 2013.04 |
| 11 | EO/EG energy saving device and EO expansion project | Olefin Plant of PetroChina Liaoyang Petrochemical Company | Φ2400 | 2013.03 |
| 12 | 100,000 t/a ethylene oxide project | Sanjiang Hushi Chemical Co., Ltd. | Φ2300 | 2011.03 |
| 13 | 150, 00/280,000 t/a ethylene oxide/ethylene glycol unit | Sinopec Wuhan Branch | Φ4400 | 2011.02 |
Achievements in coal to ethylene glycol
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | Oxalic acid device of product structure optimization and upgrading construction project | Shandong Astech Technology Co., Ltd. | Φ3200/Φ3600 | 2017.05 |
| 2 | 200,000 t/a syngas to ethylene glycol project | Shanxi Xiangkuang Hongtong Coal Chemical Co., Ltd. | Φ3000/Φ3600 | 2017.02 |
| 3 | Distillation device of coal-to-ethylene glycol waste recycling and comprehensive utilization project | Anyang Chemical Industry Group Co., Ltd. | Φ1000 | 2016.03 |
| 4 | Ethylene glycol industrial demonstration device reactor | Hubei Chemical Fertilizer Branch | Φ3600 | 2016.02 |
| 5 | Glycol project | Yangmei Pingding Chlor-Alkali Factory | Φ5600 | 2014.06 |
| 6 | Coupling section of 200,000 t/a syngas to ethylene glycol industrial demonstration plant | CNPC Hubei Chemical Fertilizer Branch | Φ3200 | 2014.05 |
| 7 | 100,000 t/a ethylene glycol project | Jiutai Energy Technology Co., Ltd. | Ф4600 | 2013.12 |
| 8 | 100, 000 t of syngas to glycol demonstration project | Anhui Huaihua Co., Ltd. | Φ5000/1400 | 2012.12 |
| 9 | Gasification plant of 300,000 t/a ethylene glycol project | Qianxi County Qianxi Coal Chemical Investment Co., Ltd. | Φ3600 | 2012.12 |
| 10 | 300,000 t/a ethylene glycol unit | Ordos Xinhang Energy | Φ5000 | 2012.11 |
| 11 | Coupling section of 200,000 t/a syngas to ethylene glycol industrial demonstration plant | China Petroleum & Chemical Corporation Hubei Chemical Fertilizer Branch | Φ5200/Φ4200 | 2012.09 |
2.9 Ethanolamine/ ethylene polyamine
| NO. | Project name | Client | Tower diameter/mm | Time |
| 1 | New technology development project of ethylene polyamine separation | Jiangxi Hurricane Chemical Co., Ltd. | Φ2800 | 2015.05 |
| 2 | 30,000 t/a ethylene amine device | Shandong Union Chemical Co., Ltd. | Φ3000 | 2014.04 |
| 3 | Ethanolamine plant of epoxy project | Liaoning North Chemical Industry Co., Ltd. | Φ800/Φ3200 | 2009.05 |
| 4 | Ethanolamine distillation system | Hubei Xianlin Chemical Co., Ltd. | Φ3000 | 2008.07 |
