PKU PIONEER is capable of producing 10,000 tons of absorbents each year, mainly including an efficient CO absorbent PU-1, an efficient oxygen-making absorbent PU-8, an efficient deoxidant PU-5, an efficient hydrogenation catalyst PU-7, an efficient CO2 absorbent PU-10, and an efficient H2 purification absorbent PU-12, etc. PKU PIONEER's absorbent products are exported to dozens of countries, including India, Spain, The Republic of Belarus, Thailand, Myanmar, Indonesia, the Philippines, South Korea, Zambia, The Kingdom of Bahrain, and Congo.
Efficient CO absorbent PU-1
PU-1 is a highly selective CuCl/molecular sieve absorbent loaded with Cu developed by PKU PIONEER that has a great absorption capacity of CO, as the core and basis of PSA CO technology.
In virtue of years of experience in the absorbent production, intensified product quality management, as well as continuous improvement and upgrading of absorbent production technology, the performance indexes of CO absorbent PU-1 produced by PKU PIONEER have reached a leading level in the world; moreover, the product quality is stable, which provides a reliable basis for meeting the design requirements of PSA CO device.
Efficient oxygen making absorbent PU-8
PU-8 is a lithium-based oxygen-making absorbent developed independently by PKU PIONEER. In 1999, PU-8 absorbent was regarded as the Key Project of China Torch Program by the Ministry of Science and Technology of China, and received the certificate of 2001 National New Products Program.
At normal temperatures and pressure, PU-8 has a higher absorption capacity of nitrogen than common absorbents, with a high separation coefficient. When the PU-8 oxygen making absorbent is applied to VPSA oxygen producing device, the oxygen product yield coefficient will be high, and the feed air to be handled and the nitrogen to be absorbed will be substantially less than those to be handled and absorbed when a common oxygen making absorbent is used. The loads on the air blower and the vacuum pump will be decreased, so will power consumption for the oxygen generation. The economic indicators of oxygen generating plant are raised effectively.
Efficient hydrogen making absorbent PU-12
PU-12 is a dedicated molecular sieve that has a special absorption capacity as the core of PSA-H2 technology. The composite molecular sieve made by traditional means (white powder with grain size 0.5-10.0 micrometer) is mixed into 15-20 percent of binder in line with the need of industrial application, making grains that possess a certain mechanical strength and shape a certain form. However, the introduced binder will reduce the content of effective molecular sieve and congest some of molecular sieve pores, thus lowering absorption capacity and adding to the diffusional limitation.
The independently-developed and produced PSA-CO adsorbent PU-1 was granted the Chinese, USA and Canadian patents. PU-1 has ultra-high adsorption capacity and selectivity for CO, which are the key features for PSA-CO technology which reaches the advanced level in the world.
PKU PIONEER originates the high and low consumption PSA-CO technology based on PU-1 adsorbent, achieving the efficient separation of CO from nitrogen, methane and other components, which is of great importance for the carbonyl synthesis industry. This technology won the Second Prize for National Technology Invention.
PKU PIONEEER has designed and constructed dozens of PSA-CO plants for the clients, and becomes the highest shares holder in market with the features including low cost of gas product, high purity, high yield, flexibility of feed gas, moderate operating conditions and easy load regulation , which brings much economic earning and market competitiveness to the user.
Wide Applications
PSA-CO technology is suitable for any CO-rich feed gas.
High Purity and Recovery
The high purity of CO products (up to 99.99%) and high recovery (80%-95%) ensure high-quality and low-cost CO gas product for downstream synthesis.
Ranking 1st in Market Share
PKU PIONEER builds most of the PSA-CO plants in China, and holds over 90% of market shares.
Patented Adsorbent
Patented PSA-CO adsorbent PU-1 is highly efficient for producing high-quality CO.
Technical Applications
PSA-CO technology of PKU PIONEER has been successfully applied in ethylene glycol, butyl alcohol, acetic acid, acetic anhydride, formic acid, oxalic acid, oxalacetate, dimethyl formamide, dimethyl carbonate, TDI and MDI.
PKU PIONEER builds most of the PSA-CO plants in the world, including the world's largest PSA plant cluster (20,000Nm3/h of O2 product, 20,000Nm3/h of CO product and 40,000Nm3/h of H2 product), the world's first plant for purifying CO and H2 from calcium carbide exhaust, and the world's first plant for separating CO from blast furnace gas . PKU PIONEER has absolute leading advantages over the others and become the leading one in CO PSA industry.
Technology Brief
Based on the principle of VPSA technology, the VPSA-O2 units adopt the special adsorbent (model: PU-8) to enrich the oxygen in the air and supply it to the user.
Production Capacity
1000Nm3/h~40000 Nm3/h, Converted to liquid oxygen: 34 TPD~1360 TPD
Typical Applications
> Steel: Blast furnace oxygen-rich coal injection, electric furnace steelmaking
> Non-ferrous metallurgy: combustion-supporting for non-ferrous metals metallurgy including copper, lead, nickel, zinc, tin and gold.
> Chemical: gasification furnace oxygen-rich gas making, carbon black production, sulphur trioxide production etc.
> Kiln energy-saving: combustion supporting for glass kilns, cement kilns and oxygen-rich combustion supporting for waste incinerators
> Papermaking: pulp bleaching process
> Sewage treatment: OEAA technology, oxygen source for ozonizer
Technical Advantages
1. Experienced engineering
PKU PIONEER has built the most VPSA-O2 plants in China, including the world's largest VPSA-O2 plant.
2. Excellent energy consumption
Energy consumption of PKU PIONEER's VPSA-O2 plant is 0.29-0.32kWh/m3 O2, which is among the lowest, around the world.
3. Internationally-leading process design
PKU PIONEER has built up the first set of radial bed in China. Independently-developed five-bed, air intake and other original process designs have proved obvious advantages.
4. The independently-developed lithium-based adsorbent
PKU PIONEER's independently-developed and produced lithium-based VPSA-O2 adsorbent PU-8 is featured by high selectivity and high working capacity of nitrogen, which is among the best around the world.
5. Mature and reliable system running
The long-term engineering practice has proved that PKU PIONEER's VPSA-O2 plants are stable and the supplementary devices are mature and reliable, thus ensuring the continuous production for users.
Technology brief
There has been a growing demand for small and medium-sized oxygen equipment with rapid development of the national economy in recent years. Beijing Peking University Pioneer Technology Co., Ltd. (hereinafter referred to as PKU PIONEER), seizing this market opportunity with its advanced technology and engineering experience of more than 100 sets of oxygen equipment, has produced the customized the new skid-mounted PSA oxygen equipment through its continuous development and innovation. The PSA-O2 generator meets a wide range of requirements for users in need of small and medium-sized oxygen equipment. It has remarkable advantages on its stability, simplicity, efficiency and energy saving.
Production Capacity
50Nm3/h-450Nm3/h, equivalent to liquid oxygen of about 1.7 TPD-15.4 TPD.
Typical Applications
The PSA-O2 generator is widely used in water treatment, flue gas ozone denitrification, kiln combustion, pulp bleaching, aquaculture, medical and other fields.
Technical Advantages
1. Advanced single-vessel process
Compared with the traditional double-vessel process, the world-leading single-vessel process requires less equipment but brings more stable performance with easier operation and maintenance.
2. High efficiency lithium-based molecular sieve
The third generation of high-efficiency lithium-based oxygen generation molecular sieve (PU-8) has a lithium ion exchange rate of over 99%, bringing plenty of advantages such as high strength, high nitrogen and oxygen selectivity, large bulk density, uniform particles, long service life, etc. In combination with the proprietary automatic filling technology, the stability of the molecular sieve bed is effectively guaranteed.
3. Special valves for oxygen generation
Special valves for oxygen generation are more suitable for VPSA oxygen process, offering good sealing, fast switching speed, stable performance and other characteristics, along with outstanding low failure rate and easy maintenance.
4. Modular integrated design
Compared with the conventional double-vessel process, the equipment is more compact and the plot area can be reduced by more than 20%.
5. Low operation cost
The power consumption of oxygen is as low as 0.29-0.32kWh/Nm3, the annual maintenance cost is 30% lower than that of a common PSA oxygen generator. The annual comprehensive operation cost is also reduced by more than 50%, compared with the cost of common PSA oxygen generator or purchasing liquid oxygen.
