[Case Study of Recovery Device (PSA Method)] Major Oil Company

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last updated：Apr 10, 2026

We will introduce a case where the annual VOC emissions were reduced by 80% after the installation of the equipment!

We would like to introduce a case study of our "Recovery Device (PSA Method)" implemented at a major oil company. The company manufactures petrochemical base products, and as of 2000, the VOC emissions were 820 tons/year. The majority of the VOC emissions were due to the solvent discharge of dichloromethane used in the resin manufacturing process, and in 2002, they introduced our product. Our product uses silica gel as the adsorbent, and the desorption of the adsorbed solvent is performed by vacuum. With two adsorption towers, it alternates between adsorption and desorption, achieving continuous operation and significant reductions. [Reasons for Adoption] - Wide applicable concentration range for the target gas - High removal and recovery rate (over 99%) - No wastewater containing solvents is generated as no steam is used for heating during desorption and regeneration - Using silica gel as the adsorbent helps suppress temperature rise due to adsorption heat - Gradual deterioration, leading to an expected long lifespan *For more details, please refer to the related links or feel free to contact us.