Treatment Plan for Benzene Waste Gas in Spray Painting Workshop

Spray painting technology is widely used in industries such as chemical, automotive, marine, and furniture. The exhaust gas generated during the spray painting process has adverse effects on the environment and human health.

With the rapid development of the economy, industries such as chemical, real estate, automotive, machinery, electronic products, and shipbuilding that apply spray painting technology are also constantly growing. The organic waste gas emitted during the spray painting process poses a threat to the surrounding environment and even human health. Spray painting waste gas is mainly composed of triphenyl (benzene, toluene, xylene), and some also contain esters, ethers, ketones, and other components.

The HDV-336 resin developed by Haipu is a polymer adsorbent material that uses the concentration difference of benzene in different media as a driving force to adsorb and remove benzene organic compounds through the affinity between the adsorbent and the benzene ring and the high pore volume of the adsorbent. Therefore, HDV336 has high adsorption selectivity and accuracy for benzene derivatives.

HDV336 polymer has abundant nanopores and excellent hydraulic diffusion performance, ensuring fast removal rate and high activity of benzene components by the adsorbent. HDV336 has a dense skeleton, ensuring high mechanical strength and good stability of the adsorbent. In addition, the adsorbent has high selectivity for benzene derivatives and minimal interference from other coexisting molecules.

HDV336 is suitable for the removal of volatile organic compounds (VOCs) such as benzene, toluene, and xylene from exhaust gases; Wastewater removal of benzene derivatives; Removal of benzene derivatives from various industrial wastewater and feed liquids.

Case 1: 3000mg/m³ of toluene waste gas generated by a certain enterprise: After multiple comparisons and investigations, Haipu technology was selected. After our company's special adsorption process, the toluene content was reduced to 5mg/m³, and about 50 tons of toluene were recovered annually, with significant and stable effects.

The company will gradually adopt our adsorption technology instead of the original activated carbon fiber technology for the treatment of nearly 20 other VOCs in the future.

Case 2: The project can recycle~82.34 tons of benzene per year, and the recycled products are returned to the production process. The annual value of recycled resources is about 494000 yuan.