Carboxyl Group, Replaced By A Phthalocyanine Bonded Mcm-41 Synthesis And Catalytic Activity Of Removal Of Ethanethiol

Because the environmental problem becomes more severe, removing the SOx in the air is a necessitous assignment. These sulfur compounds (SOx) are generated from the combustion of sulphur-containing compounds in crude oil, such as mercaptans, sulphides, thiophenes, benzothiophenes and their alkyl-substituted phthalic anhydride. Removing these sulphur compounds becomes a chief mission.Firstly, in this paper, aviation kerosene using as a solvent and the phthalic anhydride of o-phthalic acid and phthalic anhydride as precursors, tetracarboxyl-phthalocyanines (TCPcM) (M=2H, Zn(Ⅱ), Cu(Ⅱ), Ni(Ⅱ), Co(Ⅱ), Fe(Ⅱ), Mn(Ⅱ), Cr(Ⅲ)),2-carboxylphthalocyanines (CPcM) (M=2H, Zn(Ⅱ), Cu(Ⅱ), Ni(Ⅱ), Co(Ⅱ), Fe(Ⅱ), Mn(Ⅱ), Cr(Ⅲ)) and binuclear hexacarboxylphthalocyanines (BNHCPcM) (M=2H, Zn(Ⅱ), Cu(Ⅱ), Ni(Ⅱ), Co(Ⅱ), Fe(Ⅱ), Mn(Ⅱ), Cr(Ⅲ)) were synthesed, and their structures were determined by element analysis, UV-Vis and FT-IR. A new phthalocyanine was synthesed and its structure was characterized by element analysis, UV-Vis and FT-IR.Secondly, mesoporous molecular sieve (MCM-41) of pure silicon was synthesed by hydrothermal method, and its BET surface area, the pore size and pore volume is 953.81 m2/g,2.41 nm and 0.7242 ml/g, respectively. Then, the phthalocyanines were anchored onto MCM-41 and were confirmed by FT-IR, XRD and X-ray photoelectron spectroscopy.Finally, using the petroleum ether solution dissolving ethanethiol as a simulative object, the catalytic activity of removing ethanethiol was tested, showing that:(1) The catalytic activity of MCM-41-NH-BNHCPcM is higheset, and MCM-41-NH-CPcM is lowest. The catalytic activity of MCM-41-NH-TCPcM is between MCM-41-NH-BNHCPcM and MCM-41-NH-CPcM.(2) The catalytic activity of MCM-41-NH-BNHCPcCo for removing ethanethiol is the best, reaching 92.74%.