VOCS waste gas treatment

In order to meet the requirements of VOCs waste gas treatment, overcome the limitations of a single technology, and reduce the cost of end of pipe treatment, Lanbao Environmental Protection has sampled, analyzed, and customized multi technology combination processes for VOCs waste gas based on industry conditions.

　　VOCs waste gas treatmentDifficult emission control and inadequate governance

Through a solid process of tackling challenges in the past few years and industrial transformation, a large number of "two highs" polluting enterprises have been reduced in terms of industrial structure. In terms of transportation structure, the pollution control of heavy trucks and the promotion of the replacement of new energy vehicles have effectively reduced the exhaust pollution of motor vehicles. However, the industrial structure dominated by heavy chemical industry and the energy structure dominated by coal have not fundamentally changed. At the same time, many traditional industrial clusters in many places still suffer from inadequate pollution control, as well as unorganized emissions from high-density clusters of automotive repair, printing, automotive oil, spraying, and other industries, some of which have not yet been substantially addressed.

　　VOCS waste gas treatmentEmission standards and technical roadmap

During the 14th Five Year Plan period, the Ministry of Ecology and Environment released the second edition of the "Practical Manual for the Management of Volatile Organic Compounds". The key points of the VOCs policy standards in Part 2 of the manual indicate the emission control requirements for VOCs organized emission sources (including VOCs unorganized waste gas collected and converted into organized emission sources). For key areas, the treatment efficiency of organized waste gas (or unorganized collected waste gas) should not be less than 80%, except for raw and auxiliary materials that comply with national regulations on low VOCs content products.

In Part 3 of the document, the selection and operation maintenance requirements for VOCs end of pipe treatment technologies are pointed out. There are many practical VOCs end of pipe treatment technologies, mainly including adsorption, combustion (high-temperature incineration and catalytic combustion), absorption, condensation, biological treatment, and their combination technologies. At present, the treatment methods are combustion technology and combination technology, and the purification efficiency can reach up to 99%.

(VOCS waste gas treatmentAnalysis of the advantages and disadvantages of efficient technology routes

As shown in the above figure, various VOCs treatment technologies have their own applicable scope, and they have different requirements for factors such as exhaust gas composition and concentration, temperature, humidity, and air volume.

Therefore, when selecting governance technologies, enterprises should aim to meet emission standards, based on exhaust conditions, and consider technical feasibility and economic feasibility from multiple aspects. For low concentration VOCs, it is recommended to use a combination of concentration and incineration technology for deep treatment. Common efficient combination processes include zeolite wheel concentration+regenerative incineration (RTO)/catalytic combustion (CO)/regenerative catalytic combustion (RCO) technology.

Lanbao provides integrated solutions for waste gas control, treatment, and management

Lanbao Environmental Protection has 21 years of experience in VOCs waste gas treatment and is one of the early environmental brands in China to enter the VOCs waste gas treatment sub field. From the perspective of customers, Lanbao Environmental Protection actively responds to the national call, providing suggestions for waste gas control from the source to the end of pipe treatment, and then providing testing and operation services, providing customers with integrated solutions for waste gas control, treatment, and management. Lanbao adheres to the three principles of "safety, compliance, and economy" in environmental protection, guiding, designing, and installing end of pipe VOCs waste gas treatment projects.

to achieveVOCs waste gas treatmentRequirement: Overcome the limitations of a single technology, reduce the cost of end of pipe treatment, and sample, analyze, and customize multi technology combination processes for VOCs waste gas based on industry conditions.

(Lanbao Zeolite Wheel Composition Testing Simulation Device System) (Lanbao Zeolite Wheel Sampling System Analyzer)

As shown in the figure, the combination technology of adsorption concentration+desorption exhaust high-temperature incineration/catalytic combustion (zeolite wheel+RTO/CO/RCO) is suitable for the treatment of high air volume and low concentration VOCs waste gas.

(Scope of application of VOCs treatment technology (concentration, air volume))