Fixed Bed Process Hydrogen Peroxide Plant

Fixed Bed Process Hydrogen Peroxide Plant

There are several methods for hydrogen peroxide production and manufacturing, among them the AO(auto-oxidation) process is the most prevailing one. In this process, 2-alkyl anthraquinone is mixed with organic solvent to make up the working solution, which is hydrogenated in presence of catalyst, and the resulting is oxidized by air (or oxygen) in counter-current way before being extracted, regenrated, purified and enriched to get commercial hydrogen peroxideproduct. Depending upon the different reactor type in the hydrogenation unit, AO process is further divided into Fixed Bed Reactor Process and Fluidized Bed Reactor Process.

Features of Fixed Bed Process Hydrogen Peroxide

Compared to the other Fixed Bed Ractor Process prevailing in China, the fixed bed process Hydrogen Peroxide technology offered by SL TEC has following advantages as below.

● Advanced DCS control system, SIS safety system and industrial video monitoring system are set up. The optimal control, alarm and safety interlocking of various process parameters in the hydrogen peroxide production process are realized. Implement video surveillance for key point control points and key positions. Ultimately, the entire system is stable, high-yield, low-cost and safe.

● Concentration adopts the world's most advanced falling film distillation technology to make the residence time of hydrogen peroxide solution in the falling film evaporator short to avoid the decomposition of hydrogen peroxide; in addition, the evaporator uses low pressure saturated steam to make the effective temperature difference ≦8~10 °C, which saves steam consumption while reducing unit consumption.

● The Fenton oxidation method + biochemical treatment sewage technology has been successfully applied, so that the sewage of the hydrogen peroxide device is completely discharged after being treated.

● System-wide air release for centralized recovery and disposal of the system. The unorganized exhaust gas is recovered and there is no odor on site. It not only reduces solvent consumption, but also improves the working environment and meets the requirements of occupational health and environmental protection acceptance standards.

● The post-treatment drying column uses high-efficiency reaction and separation of filler packing. Solved the problem of causing alkali in the drying column. The burden on the subsequent activated alumina bed is alleviated. Reduced consumption of activated alumina. At the same time, it ensures the long-term operation of the system.

● The purification column uses high-efficiency oil-water separation of coalescing fillers to greatly reduce the organic carbon content in the product. The organic carbon content of the product meets the needs of high-end users. The product does not need to be purified.

● High-efficiency tail gas solvent recovery process—the combination of turbo expansion refrigeration (power generation) + solvent recovery + carbon fiber adsorption recovery process. At present, the treatment of hydrogen peroxide tail gas in domestic hydrogen peroxide generally adopts the combined treatment technology of turboexpansion refrigeration and activated carbon fiber adsorption, which has achieved good results in tail gas treatment. However, as the carbon fiber usage time increases, the adsorption performance decreases, and the adsorption recovery effect is affected. It is difficult to truly achieve exhaust gas emission standards; another solvent-collecting recovery device developed by Fourpeng can recover 80% of the solvent in low-temperature exhaust gas, reduce the load of activated carbon fiber, prolong the service life of activated carbon fiber, and reduce The regeneration frequency of activated carbon fiber reduces the consumption of regenerated steam and the consumption of aromatic hydrocarbons, so that the oxidation tail gas is truly discharged.

SL Tec is a leading supplier of technology and turnkey solutions and services for hydrogen peroxide manufacturing and hydrogen peroxide production plants. SL Tec provides both fixed bed reactor process and fluidized bed reactor process. The fixed bed reactor process SL TEC provides is the most advanced technology in China.