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Technological innovation

Technological innovation

Our company Science and Technology always takes technological innovation as the foundation, relying on the innovation platforms such as the National Science and Technology Innovation Base of the Park, the National postdoctoral Research Workstation, the CNAS Certification Laboratory and the National Enterprise Technology Center, and takes the road of "introduction and digestion, joint research and development, independent development". With Dalian Institute of Chemical Physics of the Chinese Academy of Sciences, Beijing University of Chemical Technology, Wuhan University of Technology, Shanghai normal University and other universities, as well as well-known design units such as Saiding Engineering Co., Ltd., Hualu Engineering Science and Technology Co., Ltd., established a strategic partnership, set up a catalyst research and development platform in the Hubei three Gorges Laboratory, and the R & D team headed by Comrade Fu Vernon broke the foreign technical blockade. A new fixed-bed full-acid anthraquinone process for the preparation of hydrogen peroxide was independently developed and successfully applied in more than 30 projects, including the single largest fixed-bed hydrogen peroxide plant in China. Won many honors and awards, such as the national special and new "Little Giant", Hubei Enterprise Technology Center, Petrochemical Federation Science and Technology Progress Award, participated in the revision of more than 10 enterprise and group standards, and owned more than 40 patents. Continue to lead the development of hydrogen peroxide technology, and export reverse technology abroad.

Core patent

Technological advantage

(Excerpt from text)

Su Peng's hydrogen peroxide technology has been approved by the expert group of the Department of Emergency Management and four experiences and practices have been promoted in the industry.

Comparison of hydrogen peroxide process

1. Traditional acid-base alternating process.

The acid-base alternating process is adopted, the hydrogenation process and post-treatment process are alkaline environment, and the oxidation process and extraction process are acidic environment. In the process of acid-base alternation, it is very easy to cause hydrogen peroxide decomposition and lead to explosion accidents.
1. Intrinsically safe total acid process.

The full acid process is adopted and the post-treatment process is the design process of vacuum dehydration, which fundamentally eliminates the possibility of explosion caused by alkaline decomposition of hydrogen peroxide, which greatly improves the essential safety performance of the hydrogen peroxide plant.
2. Traditional working fluid system

Using two groups of heavy aromatics + trioctyl phosphate as liquid system, the solubility of 2-ethyl anthraquinone is only about 130g/L, the hydrogenation efficiency is 6.5-7.5g/L, and the concentration of hydrogen peroxide is usually less than 30%.
2. Efficient working fluid system.

Using three groups of heavy aromatics + trioctyl phosphate + o-methylcyclohexyl acetate as liquid system, the hydrogenation efficiency is 8.5-9.5g/L, the hydrogenation efficiency of unit volume working liquid is increased by more than 30%, and hydrogen peroxide with concentration of more than 35% can be directly produced.
3. Traditional oxidation process.

The double-tower parallel flow design is adopted, the oxidation yield is 90% Mel 95%, the tail oxygen content is 6% Mel 8%, the oxidation residue needs to be discharged regularly, and there is a risk of decomposition and explosion of the residue.
3. New oxidation process

The single tower countercurrent oxidation design is adopted, the oxidation yield is more than 96%, and the tail oxygen content
4. Traditional hydrogenation process.

Single tower multi-section, no inter-node heat dissipation measures, pressure discharge, hydrogenation reaction conditions are not easy to control, hydrogenation effect is unstable, catalyst effectiveness is not fully played, shutdown or load reduction regeneration catalyst frequency is higher.
4. New hydrogenation process

By using the series design of double hydrogenation tower, the problems of accurate control of reaction conditions and reaction heat evacuation are solved, the stability of hydrogenation process is improved, and the purpose of long period and stable operation of the unit is realized.
5. Traditional concentration process.

The "falling film evaporation-general distillation" process is adopted, the steam consumption is 1t/t (50% H2O2), and the concentrated distillate needs to be treated and discharged.
5. New concentration process

The complete process of "steam jet-falling film evaporation-high efficiency distillation" is adopted, the steam consumption is as low as 0.3t/t (50% H202), and does not produce a drop of waste water, realizing the double benefits of energy saving and environmental protection.
6. Traditional wastewater treatment process.

Hydrogen peroxide has a large amount of waste water, high phosphorus content, high cost of Fenton, biochemical and other processes, and high risk of environmental protection.
6. New wastewater treatment process.

The new working liquid system of Su Peng Technology has the advantages of low solvent consumption and low phosphorus removal load. the advanced membrane treatment technology can effectively reduce the cost of hydrogen peroxide wastewater treatment and realize zero discharge of wastewater.

Technological characteristics of hydrogen peroxide in Su Peng Technology

Characteristics of traditional hydrogen peroxide process

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