... (Ni) content, % Min.14.0SiO2, %Max.0.20Al2O3, %55.0CaO, %10.0Fe2O3, %Max.0.35K2O+Na2O, %Max.0.30Heat-resistance: long-term operation ... particles (the percentage of below 180N/particle): max.5.0%Heat-resistance indicator: non-adhesion and fracture in two ... Process conditionsPressure, MPaTemperature, °CAmmonia space velocity, hr-10.01 -0.10750-850350-500Ammonia decomposition rate99.99% (min)Service life: ...