Loaded mercury-free catalyst for vinyl chloride preparation by hydrochlorination of acetylene and preparation method thereof

The invention discloses a loaded mercury-free catalyst for vinyl chloride preparation by hydrochlorination of acetylene and a preparation method thereof. The catalyst comprises precious metals/active carbon. The load capacity of the active components in the catalyst on a carrier is 0.1-3 wt%. The catalyst is prepared by carrier pretreatment and dipping, and a test for acetylene hydrochlorination activity is performed under a condition with a raw material gas space velocity of 120 h-1, a raw material gas ratio of V(HCl):V(C2H2) of 1.15, a normal pressure, and a reaction temperature of 160 DEG C. The advantages of the invention are that: the catalyst has good environmental benefits; the catalyst has a simple composition, and high catalytic activity; the acetylene conversion rate is more than 96%; the selectivity is high; the vinyl chloride selectivity is up to above 98%.