中小企業向け通電発熱型VOC分解処理装置の開発（第2報）: プロトタイプの改良と実証試験

摘要

A new apparatus for decomposing volatile organic compounds(VOCs) targeted at the small-scale factories was developed by our joint industry-university-local government research project funded by Ministry of the Environment. The prototype apparatus using the exothermic SiC honeycomb was improved in the points of treatment gas-flow, energy-saving and catalytic decomposition capacity after our previous report. As a result, the capacity of gas treatment and the reduction rate of energy-saving at SV(Space Velocity) = 3,300 could be elevated up to 300 m3/h and 40%, respectively. The catalytic decomposition was approximately 10% more effective than that of the previous system. In the demonstrative examination at a metal painting factory and a printing factory, the removal rate of VOCs reached 95% and the deodorization efficiency was 98%. The improvement of exhaust ventilation system in the actual process of the factories and the incorporation more than one apparatus would be needed for the practical adaptation of the proposed apparatus.%環境省の委託を受け，中小企業のニーズに合ったVOC分解処理装置を産官学共同で開発した．既報に引rnき続き，SiCを利用した通電発熱型のプロトタイプについて，処理能力，省エネ性能及び触媒性能の向上をrn目的に改良を加えた．rnその結果，空間速度（SV）が3,300hr~(-1)において，処理能力は300m~3/hrに，熱交換器設置による省エネrn効果は40％に達し，触媒性能も10％程度向上した．rnさらに，グラビア印刷工場と金属塗装工場において実証試験を行い，VOC除去率が95％，脱臭効率もrn98％を達成するなど良好な結果を得た．rn実用化するに当たっては，ダクトワークの改良及びプロトタイプの複数（2～4機）の導入などにより，効rn果的な対策が可能なことが示唆された．