Development And Performance Of The New Wet Desulfurization Catalyst Research

The work studies the performance of the systems of the F_e- PBTCA-EDTMP, the Fe-NTA- Salicylic Acid and the Heteropoly Acid of NaVO₃ and PO₄^3- in the desulfurization cause.1.the system of the F_e-PBTCA-EDTMP. The effects of pH, DNP, SO₄^2-, S₂O₃^2- ,CNS^-on the electric potential were determined,the change of the electric potential gave some enlightenments to us through the experiment of dynamically circulatory desulfurization ,the accumulation of SO₄^2-, S₂O₃^2- CNS^- in the solution led the electric potential of the solution to low ,for the side reactions in the desulfurization cause.The pH value should be 8.6 , 2,4-dinitrophenol (DNP) made the catalyst rebirth quick,the degradation of the complexing agents of PBTCA and EDTMP was very slow,the complexing agents of PBTCA and EDTMP were good to the modification of sulfuric particle, the catalyst got the rebirth quickly,the velocity of desulfurization was fast,so the future progress of the system of the F_e-PBTCA-EDTMP was very beautiful in the industry application. The effects of SO₄^2-,S₂O₃^2-, CNS^- on the electric potential and the system used in the wet desulfurization of H₂S are not reported in the literature.2.the system of the F_e-NTA- Salicylic Acid. The accumulation of SO₄^2-and S₂O₃^2- made the electric potential of the system low in the solution ,for the side reactions in the desulfurization cause, while the accumulation of CNS^- made the electric potential of the same system high.3.the system of the Heteropoly Acid of NaVO₃ and PO₄^3-.The accumulation of SO₄^2-, S₂O₃^2-, CNS^-in the solution made the electric potential of the system high ,for the side reactions in the desulfurization cause.The experimental datum and the average manufactural datum of the desulfurization causes from semiwater gas during the system of NaVO₃ and PO₄^3-and MSQ-3 were used in the factory showed the system would have good future in the industry application. The system used in the wet desulfurization of H₂S is not reported in the literature.