| abstract |
[PROBLEMS] To provide a method for producing a desulfurization agent for hydrocarbon fuel, which can sufficiently exhibit desulfurization activity from a low temperature region to a high temperature region, a desulfurization agent for hydrocarbon fuel, and desulfurization for hydrocarbon fuel. Methods and fuel cell systems are provided. A step of producing an oxide precipitate by mixing a precipitant solution B (for example, Na 2 CO 3 ) kept at a predetermined temperature and a solution A (Zn (NO 3 ) 2 ), And a step of dropping a solution C containing Cu into the oxidized precipitate to produce a composite oxide containing Cu (CuO—ZnO). [Selection] Figure 1 |