Part 1: Technical Background and Industry Needs

Paint booth exhaust treatment is a crucial environmental protection link in industrial fields such as automotive manufacturing and furniture production. As a leading country in precision manufacturing, Japan is renowned for its efficient and stable exhaust treatment technology, particularly suitable for the control of high-concentration volatile organic compounds (VOCs). Muerong (Shanghai) International Trade Co., Ltd., with its experience in the field of water treatment materials, introduces advanced Japanese technology into the domestic market, combining activated carbon adsorption, catalytic combustion, and other processes to form a solution tailored to China's industrial environment.

Part Two: Technical Principles and Core Components

Japan's waste gas treatment technology for spray painting rooms mainly relies on the "adsorption-desorption-catalytic combustion" cyclic system. Its core components include:

1. Pre-treatment Module：Utilizing honeycomb activated carbon supplied by Mu Rong Company (specification: 100×100×50mm, iodine value ≥800mg/g), effectively intercepts paint mist particles and extends the service life of subsequent adsorption materials.

2. Absorption moduleActivated carbon granules made from coconut shell (particle size 0.5-3mm, specific surface area ≥1200m²/g) exhibit an adsorption efficiency of over 95% for benzene, xylene, and other VOCs.

3. Desorption catalyst moduleBy electric heating (temperature 200-300℃) to trigger desorption, accompanied by precious metal catalyst (Pt/Pd loading 0.5%), organic matter is converted into CO₂ and H₂O, with thermal efficiency ≥85%.

III. Mufeng Company's Technical Implementation Case

Automotive Parts Company's Paint Booth Exhaust Treatment Project:

1. Project BackgroundThe original treatment system uses a single photo-oxygen catalytic process, resulting in VOCs emissions exceeding the standard concentration (120mg/m³), and an upgrade and transformation is required.

2. Technical SolutionMuerong Company offers a combined process of "honeycomb activated carbon + granular activated carbon + catalytic combustion", with a design air volume of 20,000 m³/h, reducing the equipment land area by 30%.

3. Operation effectAfter 3 months of monitoring, VOCs emissions concentration remains below 15mg/m³, activated carbon replacement cycle extended to 6 months, with annual operating costs reduced by about 40%.

4. Daily Maintenance and Fault Diagnosis

1. Activated carbon replacement cycleBased on the entry concentration (recommended ≤500mg/m³) and usage duration (usually 8000-12000 hours), regularly check the iodine value decline rate (replace when ≥20%);

2. Catalytic bed maintenanceQuarterly inspection of catalyst carbon accumulation; if the pressure difference increases by more than 15%, reverse blowing cleaning is required (pressure 0.5-0.7MPa).

3. Electrical heating system calibrationAnnual temperature sensor accuracy (error ≤ ±2℃) is tested by professional institutions to prevent incomplete desorption due to temperature deviation.

V. Technical Advantages and Industry Compatibility

Mufu Company's introduced Japanese technology boasts three major advantages:

1. Modular designThe number of adsorption boxes can be flexibly combined according to the workshop size to meet air volume requirements of 5000-50000 m³/h.

2. Energy RecoveryThe heat generated by catalytic combustion can be reused in the desorption process, resulting in a reduction of comprehensive energy consumption by 25%-30%.

3. Material compatibilitySupport the replacement of Muerong Company's full range of activated carbon products, reducing customers' long-term operation and maintenance costs.

Currently, this technology has been successfully applied in over 10 industries such as electronics, packaging, and mechanical manufacturing, helping enterprises achieve the dual goals of meeting emission standards and reducing costs while improving efficiency.