The Changcheng Automobile Group has deployed over 60 units in 14 of its factories.

I. Project Background and Problem Description

The three major bases of Great Wall Automobile in Tianjin, Baoding and Xushui have a total of 14 production areas. The painting process generates a large amount of VOCs waste gas. The overall treatment air volume of the project reaches 7,300,000 m³/h, which belongs to a complex waste gas treatment scenario with large air volume and multiple working conditions.

There are numerous challenges in the simultaneous treatment of multiple factory sites within this group: The types of paints, exhaust gas components, VOCs concentrations, workshop temperature and humidity, equipment configuration and installation conditions vary significantly among different factory sites, making it impossible to apply a unified treatment plan. General equipment is prone to issues such as low processing efficiency, unstable operation, and excessive emissions. Moreover, implementing simultaneous treatment across multiple factory sites requires extremely high capabilities from service providers in terms of on-site condition investigation, customized research and development, batch supply, and overall coordination.

II. Clear Service and Implementation Results

For the 14 different and complex working conditions of the Changqing Automobile Group's factories, Qingdao Naboco provided a customized Napotec® zeolite rotary tower overall VOCs treatment solution. This solution completed the on-site investigation of working conditions, parameter customization, batch delivery, and on-site operation and maintenance in one step. The group's multi-factory simultaneous renovation project was successfully completed, and the core results are as follows:

Full-factory precise working condition investigation: A specialized technical team inspected and statistically analyzed the types of paints, exhaust gas parameters, temperature and humidity, processing air volume, and equipment conditions of each factory, established exclusive working condition files, and completely solved the problems of different working conditions in multiple factories and homogeneous solutions. 

• Customized product parameter matching: Based on the actual working conditions of each factory, one-on-one customized matching of molecular sieve formulas and zeolite rotary tower specifications was carried out to precisely adapt to different exhaust gas treatment needs, ensuring the efficient and stable operation of the equipment. 

• Large-scale batch delivery and implementation: A total of more than 60 Napotec® zeolite rotary towers were put into use, covering all 14 production factories, successfully completing the large-scale exhaust gas treatment renovation with a wind volume of 7,300,000 m³/h, achieving stable and compliant emissions throughout the factory. 

• Accumulated project service experience for the group: A complete chain of service capabilities for cross-factory working condition investigation, personalized solution customization, batch supply, and multi-site simultaneous implementation has been accumulated. It can efficiently adapt to the differentiated treatment projects of multiple bases of the group.