Waste Gas Treatment Catalytic Recuperative Oxidizer Catalytic Oxidiser Energy Saving

This catalytic combustion furnace is specifically engineered for industrial waste gas treatment, utilizing advanced catalytic oxidation technology to efficiently decompose organic waste gases (VOCs) including benzene, ketones, and esters. The system achieves purification efficiency exceeding 95% while incorporating a heat recovery system that significantly reduces operating energy consumption.

Accepted Time: December 2022
Location: Shandong Qingdao
Solution: Catalytic Oxidation System
Pollution Source: Volatile Emissions
This Catalytic Oxidation system was designed by Jiangsu Ruiding Environmental Engineering Co. as an EPC general contract for Qingdao Siyuan Chemical Co., Ltd. The system treats volatile emissions generated during chemical product manufacturing and loading/transportation processes.
To meet Qingdao City emission standards while minimizing operational costs, we implemented an innovative off-gas treatment process combining "cryogenic + CO" technology, replacing traditional cryogenic plus adsorption methods for tank area gas treatment.
The treatment system handles 650 Nm³/h of tank area volatile gas and 350 Nm³/h of loading volatile gas. The unit occupies 20×10 meters and includes a three-stage condenser recoverer, reheater, catalytic reactor, and electric heater. The system ensures compliant emissions through the combined cryogenic + CO unit.
The project achieved mechanical completion on October 30, 2022, completed commissioning on November 20, 2022, and began official production operations in early December 2022.

Before entering Catalytic Recuperative Oxidizers (CO), VOC-containing gas is preheated through a heat exchanger. The preheated gas enters the CO unit and is elevated to the catalyst's working temperature, where an exothermic reaction converts pollutants into carbon dioxide and water vapor.
The clean hot flue gas then passes through the heat exchanger, transferring thermal energy to incoming air before being discharged through a chimney. Using catalysts with different oxidation temperatures allows for lower inlet temperatures (250-305°C), reducing energy requirements while maintaining oxidation efficiency.

Ruiding has established the Jiangsu Province Clean Incineration Resource Engineering Technology Center and the Key Laboratory of the JICUI-Ruidings Joint Innovation Center.
The laboratory features advanced detection equipment including ICP inductively coupled plasma emission spectrometry, atomic absorption spectrophotometry, atomic fluorescence spectrophotometry, high-temperature combustion ion chromatography analyzers, and rapid equilibrium flash point testers. Capabilities include heavy metal analysis, elemental analysis, off-gas calorific value analysis, ash melting point detection, and comprehensive waste analysis.

Ruiding specializes in engineering, fabrication, construction, and commissioning services for industrial waste combustion treatment systems including thermal oxidizers, heat recovery systems, pressurized vessels, flue gas treatment systems, and plate heat exchangers.
The company holds Environmental Protection Engineering Class 2 EPC certification, ASME Certificate, Class A boiler manufacturing license, A2 pressure vessel design and manufacturing certificate, and comprehensive pressure pipeline certifications. With over 250,000 square meters of building area and nearly 300 professional staff, Ruiding has completed over 500 engineering projects across various industries with significant market share in petrochemical applications.