The VCM recovery industrial pilot plant of Shenma Group in 2002 and the VCM recovery industrial demonstration plant on 80,000 tons of PVC of Qihua Group in 2003 are the first set of systems used for VCM monomer in the distillation tail gas of the calcium carbide process in the world, so far, OUKE has been in the manufacturers of 240,000 tons of PVC in Yibin Tianyuan, 120,000 tons of PVC in Xinjiang Zhongtai, 100,000 tons of VCM in Shandong Hengtong and 50,000 tons of VCM in Shenyang Chemical Industry, etc. Nearly 1 million tons of PVC plant installed membrane recycling system. According to each ton of PVC can reduce 30-50kg of calcium carbide unit consumption, has saved about 30-50 million tons of calcium carbide for PVC industry. Meanwhile, a new adsorption technology has also been developed, so that the VCM concentration in the exhaust air reaches the equivalent emission standard of 35mg/m3, which generates even greater environmental and social benefits. For this reason, OUKE was awarded the Second Prize of Scientific and Technological Progress by the First China Membrane Industry Association in 2005. In addition, in 2004, 100,000 tons of PVC polymerization plant of Xindong Chemical Group established the first unreacted VCM monocyclic system in China.
In 2001, OUKE established the first intermittent small body polypropylene plant recycling system in Sinopec Yueyang Petrochemical General Plant, which is still in stable operation. So far, membrane recovery systems have been installed in nearly 1.2 million tons of polypropylene units at Canglian, Harbin, Xinjiang Lu Petrochemical, Nanjing Red Leaf, Jingmen Petrochemical and other manufacturers. According to the calculation that each ton of PP can reduce 40kg propylene monomer consumption, nearly 50,000 tons of propylene monomer can be saved for polypropylene industry every year, equivalent to 700,000 tons of crude oil. It was honored by China Polypropylene Industry Association as a new technology for energy saving and consumption reduction in 2003.
From the establishment of the first domestic EO/EG unit ethylene recovery system in Jilin Petrochemical in 2002 to the present, the Dalian OUKE Membrane Recovery System has been installed in 9 out of 11 EO/EG units in China***. These include Maoming Ethylene, Yanshan Petrochemical, Tianjin Petrochemical and Liaohua. According to the calculation that each ton of EO/EG can save 8-10kg ethylene, it can save 8000 tons of ethylene for the industry every year. This is equivalent to 56,000 tons of crude oil. At the same time, it can save 50% methane and make the equipment run more smoothly.
In 2005, OUKE also set up the first membrane recovery system for butene in the stripped gas of LLDPE plant in Tianjin Ethylene, and set up the first LPG recovery system for refinery in Daqing Refining in 2003, etc. Meanwhile, our products are also sold to Japan and other countries. Meanwhile, our products are also sold to Japan, Southeast Asia and the Middle East.
In the oil and gas recovery system, OUKE and BORSIG of Germany established the first professional company in China focusing on membrane oil and gas recovery--Dalian OUKE LID Environmental Engineering Company in 2004, and installed the first set of membrane recovery device in China in Sinopec Shanghai Lingguang gas station, which can recover 0.3% more gasoline per year, and the emission can be reduced by 0.3%, and the gasoline can be recovered by 0.3% more than that in China. 0.3% more gasoline can be recovered every year, and the emission standard can reach the international standard of 35g/m3. It is also in the process of establishing the first oil and gas recovery system for 20 tons of 10,000 fuel platforms per year in China.
In the field of hydrogen recovery, through the cooperation with Japan's UBE, in the refinery, ammonia, methanol industry to establish nearly 30 sets of industrial equipment. Among them, the hydrogen recovery system in the 1.2 million tons diesel hydrogenation plant of Shanghai Petrochemical is the largest plant in the same industry in China. The hydrogen recovery unit (25000Nm3/hr) of 630,000 tons of ammonia exported to National Iranian Oil Company is the first set of domestic gas separation membrane exported, and also the first membrane recovery system in Iran.
In the field of ultrafiltration membrane, as the only partner of German Membrana in China, OUKE established Dalian OUKE Xinyuan Ultrafiltration Membrane Technology Co., Ltd. in December 2003, which mainly focuses on ultrafiltration membrane modules, and produces ultrafiltration membrane modules for large-scale water treatment and special purposes. In China, OUKE cooperates with Shanghai Peninsula and Beijing CNC, etc. The products have been used in large scale for pre-treatment in electric power, petrochemical, metallurgy, chemical industry and seawater desalination, etc. Among them, the 1100m3/h ultrafiltration system of Shanxi Aluminum Industry is the largest installation in China at present. In Shengli Oilfield, OUKE has constructed 1000m3/d oily wastewater treatment system for re-injection water in extra-low permeability oilfield. Meanwhile, the products have been successfully returned to the European water treatment market.
Dalian OUKE Wanyuan Oilfield Membrane Technology Company, founded by OUKE in 2005, is dedicated to the application of membrane technology in oilfields, and has already popularized the membrane method of oily wastewater treatment, natural gas treatment and many other new technologies in Shengli Oilfield, Daqing Oilfield, Xinjiang Oilfield and other places. The MBR system for wastewater treatment developed by Dalian OUK and Dalian University of Technology*** is also in progress.
" Technological innovation, the courage to be the first " is Dalian OUKE into the blood of the qualities, but also the company's rapid development of one of the corporate culture. It is also one of the company's fast-growing corporate cultures. Synchronizing with the world's science and technology and leading the way in clean production is the consistent pursuit of Dalian OUKE.
Research Direction
- Lubricant dewaxing solvent recovery
This project is to research and develop a solvent recovery membrane separation system for lubricant solvent dewaxing process. It is integrated with the traditional multi-effect evaporation solvent recovery process to realize partial solvent membrane recycling at low temperatures (dewaxing temperature), reduce the energy consumption of the heating-cooling process of the solvent/oil cycle in the traditional solvent recovery process, and at the same time, reduce the load of the traditional solvent recovery system and refrigeration system, increase the dilution ratio, so that the filtration rate is accelerated, and break the limitation that the dilution ratio cannot be too large in the traditional process. The ratio of dilution can not be too large restrictions, and ultimately solve the bottleneck of the traditional process of solvent dewaxing of lubricating oil.
- Metallurgical industry membrane distillation technology development
Alumina production process, a large amount of water (such as cleaning process of steam condensation into the water) into the lye cycle system. In order to maintain the effective concentration of the circulating lye, the excess water in the circulating liquid needs to be removed. The traditional process is to use multi-effect evaporation. The disadvantages of this process are the complexity of the process and the high energy consumption. This project adopts membrane distillation technology to partially replace the traditional multi-effect evaporation technology. Membrane distillation process can be utilized waste heat, no high temperature can be operated and product purity and many other advantages, so it is especially suitable for the existence of a large number of waste heat, but the heat level is low and can not be utilized occasions. Such as metallurgical industry waste alkali recovery, the traditional evaporation process requires high temperature; and reverse osmosis technology due to the concentration of alkali is too high to apply. In contrast, membrane distillation only about 60 ~ 70 ℃ can operate, and the concentration of raw materials without too high requirements, so the application of membrane distillation technology will bring significant economic benefits.
- Membrane desulfurization
In recent years, with the rapid development of China's economy and people's living standards continue to improve, more and more private cars into the family. However, the large amount of fuel consumption has brought serious environmental pollution problems. The level of sulfur content in gasoline directly affects the concentration of fuel exhaust emissions.
The use of osmotic vaporization membrane separation technology can make the gasoline sulfur compounds can be removed through the membrane preferentially. On the retention side of the membrane to get low sulfur content gasoline products. This process can reduce the sulfur content of gasoline from 500 ppm to less than 30 ppm.
R&D strength
The R&D team of Dalian OUKE Membrane Technology Engineering Co., Ltd. is led by Dr. Li Shuguang, a famous scholar in the membrane industry and an overseas returnee, and is composed of researchers from Dalian Institute of Chemical Physics, senior membrane specialists, such as Jiang Chengzhang, Xu Renxian and Dong Zifeng as the R&D consultants, and a group of professionals who have been engaged in the research of membrane technology for many years. More than 90% of the R&D personnel have master's degree, doctorate or senior title.