The treatment of organic waste gas in the container industry - molecular sieve rotor + RTO

2017.01.23 73

In recent years, society has paid increasing attention to environmental protection issues. As a major polluter, container manufacturing plants are facing greater environmental pressure and must deal with the organic waste gas produced during painting.

The organic waste gas emissions in the container manufacturing industry have the following characteristics: The harmful substances are mainly toluene, xylene, etc., with low content and high flow rate. The main paint room flow rate is above 100,000 - 120,000 m³/h, and the content of toluene, xylene, etc. is around 500 mg/m³, making the treatment difficult. Taking one container production line as an example, the painting air volume is 600,000 - 700,000 m³/h, and the volatile organic compounds (VOC) concentration in the painting waste gas fluctuates between 200 - 400 mg/m³. From the above data, it can be seen that the organic waste gas in the container manufacturing industry has the typical characteristics of large air volume and low concentration. Therefore, the serious pollutant in the container industry is "three benzene" (benzene, toluene, xylene) waste gas, among which the concentration of benzene and xylene is relatively low and the hazard is smaller, with the highest concentration being that of toluene. Therefore, the "three benzene" waste gas has the greatest hazard among them.

In response to the above characteristics of the waste gas, Huashi Jie Environmental Protection Technology Co., Ltd. adopts the molecular sieve rotor concentration process to treat the organic waste gas. Through the molecular sieve rotor, the large air volume and low concentration organic waste gas is concentrated (can be concentrated by 10-20 times), and the high-concentration organic waste gas after passing through the molecular sieve enters the combustion chamber. With the assistance of fuel combustion, the temperature of the organic waste gas is raised to around 300 degrees, and then enters the catalytic bed for reaction. The catalyst in the catalytic bed undergoes a chemical reaction with the organic waste gas, generating carbon dioxide and water, and releasing a large amount of heat. The released heat can be utilized for heat production, such as generating hot air or steam. This treatment process for organic waste gas has an elimination rate of over 99%, and is one-time treatment with no worries. Moreover, the residual heat can also be used to heat boilers or produce hot air, having positive benefits.

As a supplier of organic waste gas treatment equipment, Huashi Jie Environmental Protection Technology Co., Ltd. was registered in Qingdao Economic and Technological Development Zone in 2004, with a registered capital of over 22 million yuan. It is a national high-tech enterprise that has developed relying on independent research and development and technological innovation. As one of the early environmental problem solvers in the domestic industrial organic waste gas treatment field, it has various treatment processes such as adsorption recovery, adsorption concentration, regenerative combustion, and catalytic oxidation. Huashi Jie has developed into a professional technical environmental project company with strong technical research capabilities in China, integrating core material preparation, project application design, equipment manufacturing, installation and commissioning services. In 2007, the company's output exceeded 100 million yuan. It has an independent R&D laboratory of 2,500 square meters, a professional talent team of nearly 500 people in R&D, design, manufacturing, and construction, 60+ authorized patents, and 600+ industrial organic waste gas treatment project cases. It has established technical cooperation relationships with many universities and research institutions. It has successively undertaken a number of national and local government research project development tasks.


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