Catalyst for the conversion of natural or associated gases into syngas in the autothermal reforming process and its production process

摘要

The calcined catalyst has a specific surface area of 20 to 50 m ² / g of catalyst and a specific surface area of nickel metal of 8 to 11 m ² / g after catalytic reduction, wherein the average particle size of nickel metal is 3 to 8 nm and the particle dispersion Is 10 to 16%, and the content of nickel is 5 to 15% by weight based on the weight of the calcined catalyst. The support has a support pore volume of 0.2 to 0.4 cm ³ / g and a specific surface area of 40 to 120 m ² / g, wherein the support is selected from a mixture of zirconium oxide and cerium oxide or from magnesium oxide, cerium oxide and the remainder phosphorus zirconium oxide do. The catalyst further comprises an accelerator selected from the group of palladium and ruthenium in an amount of 0.01 to 0.5 wt%. The catalyst comprises nickel, cerium, and zirconium precursors and distilled water, and a solution comprising a pH of 8.0-9.0 or a solution comprising nickel, cerium, zirconium, and magnesium precursor and distilled water and having a pH of 8.0-9.0 with ammonia hydroxide By coprecipitation. The process is carried out by stirring at a temperature of 40-45 ° C for 1-2 hours, filtration, drying at a temperature of 100-110 ° C for 6-8 hours and calcination at a temperature of 400-650 ° C for 4-6 hours. The present invention provides high conversion rates and high average syngas production of 7000m ³ / m ³ cat · h, at least at least 90% natural / associated gas in the autothermal reforming reaction of natural or associated gas.