Comparative analysis: The long-term cost of membrane condensation for VOCs treatment in petrochemical industry is much lower than that of RTO

In the petrochemical industry, VOCs (volatile organic compounds) treatment has always been a key focus of environmental protection work. At present, common VOCs treatment technologies in the market includeRTO(Regenerative thermal oxidation furnace) and membrane condensation recovery technology, but in terms of long-term cost, membrane condensation recovery technology has outstanding advantages.

RTO technology converts VOCs into carbon dioxide and water through high-temperature combustion to achieve the purpose of treating exhaust gas. It can efficiently remove VOCs from exhaust gas with significant treatment effects. But RTO technology also has obvious shortcomings, with its operating costs mainly reflected in gas consumption. When dealing with low concentration exhaust gas, it is necessary to continuously supplement natural gas to maintain the combustion reaction. The cost of gas remains high, and there may even be situations where the burned gas has a higher value than the recovered solvent. Moreover, reducing operational load can lead to emissions not meeting standards, which puts companies in a dilemma.

In contrast, membrane condensation recovery technology has many advantages. In LuoyangWohong PetrochemicalTaking the membrane condensation recovery unit of Equipment Co., Ltd. as an example, it adopts a three-stage condensation processgas separation membraneCombination process, operation only uses electricity without burning gas. The refrigeration compressor and vacuum pump are both controlled by frequency conversion, which can automatically adjust the power according to the exhaust gas load, effectively controlling power consumption and greatly reducing operating costs.

The membrane condensation recovery technology can also recover organic solvents from exhaust gas, creating economic benefits. The equipment condenses, liquefies, and recovers organic solvents from exhaust gas, achieving a high level of purity. The recovered solvents can be directly reused for production or external sales, converting environmental expenses into economic benefits. The RTO technology directly burns off the solvents in the exhaust gas, which not only wastes resources but also increases environmental costs.

From the perspective of maintenance costs, the core consumable membrane component of the membrane condensation recovery equipment has a service life of three to five years. Daily maintenance mainly involves checking the refrigeration system pressure and recovery liquid level every week, cleaning the heat exchanger fins every month, replacing the refrigeration oil and drying filter every year, and avoiding the hassle of frequent consumables replacement. And usingactivated charcoalEquipment companies need to replace the carbon every month, and each time the carbon is replaced and hazardous waste is disposed of, the procedures are cumbersome and the labor cost is high. In addition, activated carbon adsorption only transfers the organic matter in the exhaust gas to the carbon, and the problem has not been truly solved.

Luoyang Wohong Petrochemical Equipment Co., Ltd. focuses on the field of VOC waste gas treatment and has a complete membrane module production line and condensing equipment manufacturing workshop, with full process service capabilities from working condition analysis to equipment delivery. The membrane condensation recovery unit adopts a modular integrated design, with small footprint, fast installation, and optional explosion-proof configuration, suitable for explosion-proof places such as chemical and pharmaceutical industries. It can also be customized according to customer working conditions, with a wide range of applications, covering medium and high concentration industries such as chemical, pharmaceutical, printing, coating, electronics, and gas stationswaste gas treatmentscene

In summary, in the treatment of VOCs in the petrochemical industry, membrane condensation recovery technology has a much lower long-term cost than RTO technology. The membrane condensation recovery unit of Luoyang Wohong Petrochemical Equipment Co., Ltd. is an ideal choice for enterprises to carry out VOCs treatment.