The combination of zeolite molecular sieve wheels is a central bearing and a rotating body, which is one of the relatively complete equipment for adsorption, desorption, and concentration incineration. It has many advantages over honeycomb activated carbon in terms of adsorption process, but the adsorption performance of zeolite is much greater than that of activated carbon, such as the removal of formaldehyde. The basic service life of activated carbon adsorption is less than one year, It is easy to adsorb and saturate, and it needs to be replaced regularly. The service life of zeolite rotary molecular sieve can reach more than 10 years, greatly reducing the cost and frequency of replacement, and reducing the expenditure on manpower and material resources. The one-time investment returns such as safety and continuity efficiency can last for decades. Moreover, the organic VOC gas concentration and efficiency in the desorption and catalytic combustion stages are higher. So zeolite molecular sieve wheels are increasingly being used in the treatment of organic waste gas.
The process principle and operation mode of zeolite molecular sieve:
The sealing system of the zeolite molecular sieve adsorption and concentration rotary wheel is divided into three parts: the treatment zone, the regeneration zone, and the cooling zone. The rotary wheel slowly rotates (1-6r/h) to ensure the complete and continuous operation of the adsorption process in each zone. When VOCs organic waste gas passes through the pre-treatment zone, the organic waste gas components are adsorbed and removed by the adsorbent in the runner. The purified air in the waste gas is discharged from the treatment zone of the concentration runner, and the runner gradually reaches adsorption saturation. At the same time, at high temperatures in the regeneration zone, the air is saturated through adsorption, and the waste gas is adsorbed and desorbed before being discharged through high-temperature air, achieving continuous removal of VOCs while also restoring the adsorption capacity of the runner to improve the concentration of waste gas. The desorbed high-temperature gas enters the RTO/CO oxidation device for easy oxygenation treatment.
Process core: Suitable for continuous operation, with a rotating adsorption wheel structure, rotational speed, wind speed, and continuous operation without bias flow. The desorption concentration is stable and the purification efficiency is high.
Material core: Non combustible inorganic silicates are used as adsorption materials to eliminate fire hazards from the raw materials; Long adsorption life (5-10Y); High structural strength and good water resistance; Rich distribution of micropores, uniform pore channels, and high adsorption efficiency.
Good safety: The adsorption material is inorganic silicate, which is non combustible and eliminates fire hazards;
Efficient treatment: The purification efficiency can reach 95%, meeting environmental standards;
Stable operation: Stable and continuous adsorption and desorption, with a desorption temperature of up to 200 ℃;
Low maintenance cost: Long service life of adsorption materials; No control valve;
Low investment: concentration of more than 10 times, reducing requirements for post-processing equipment;
Multiple processes can be combined, with high waste heat utilization rate: achieving high heat recovery ≥ 95% with RTO; Combine with CO to recover waste heat.