Pre-passivation process for a continuous reforming apparatus, and passivation process for a continuous reforming apparatus during the initial reaction

A passivation process for a continuous reforming apparatus during the initial reaction, said continuous reforming apparatus comprising a reaction system, said reaction system having more than one reactor including a reforming reactor, said process comprising

• (1) loading a reforming catalyst into the continuous reforming apparatus, starting a gas circulation, said gas circulation including a recycle gas, and raising the temperature of a reactor in said reaction system, feeding a reforming feedstock into the reaction system when the temperature of the reactor is increased to 300-460° C., introducing sulfide into the reaction system while or after the reforming feedstock is fed, controlling the ratio of the total sulfur amount introduced into the reaction system to the reforming feedstock within the range of 0.5 μg/g-50 μg/g, reducing the content of sulfide introduced into the reaction system when hydrogen sulfide concentration in the recycle gas reaches 2.0 μL/L˜30 μL/L;
• and
• (2) maintaining the reforming reactor at a temperature of 460-490° C., controlling the ratio of the total sulfur amount introduced into the reaction system to the reforming feedstock within the range of 0.2 μg/g-0.5 μg/g when the water content in the recycle gas is less than 50 μL/L, adjusting the amount of the reforming feedstock to the design value of the continuous reforming apparatus, increasing the reforming reactor temperature to 490-545° C. according to the requirements on the octane number of the liquid product, and letting the continuous reforming apparatus run under normal operating conditions.