| 摘要 |
PURPOSE:To obtain the title compound in high selectivity by circulating methane to one of divided zones separated by a porous material coated with magnesia carrying lead oxide and an oxygen gas to the other and carrying out oxidation coupling reaction. CONSTITUTION:A porous material (e.g., alumina or silica) having 5-5,000nm, preferably 10-1,000nm average pore diameter is coated with a saturated aqueous solution of magnesium nitrate in a concentration hardly to leak a reaction gas, calcined with air at 600 deg.C to form a coating film 11 of magnesium oxide, an aqueous solution of lead nitrate is applied to the coating film and the coated material is similarly sintered to form a lead oxide coating 12 to give a substrate 1 coated with the catalyst. The substrate 1 is inserted into a quartz tube 2, methane is circulated from a methane inlet 4 to a methane feed zone 8, an oxygen gas is sent from an oxygen inlet 5 to an inner side 9 of the substrate 1 and oxidation coupling reaction of methane is carried out at 600-900 deg.C with oxygen anion of lead oxide lattice permeated from the oxygen side through the catalyst to the methane side to give C2 hydrocarbon. |
