1results about How to "Solve easy coking" patented technology

The application discloses a silver-based arsenic removal agent for an ethylene device and a preparation method thereof. The arsenic removal agent comprises the following components in the total mass of the arsenic removal agent being 100%: 0.3-0.8 wt% of an active component silver; 5.0-8.0 wt% of a bimetallic promoter (consisting of 3.0-5.0 wt% of indium oxide and 2.0-3.0 wt% of tin oxide); 1.2-2.0 wt% of a modifier (consisting of 0.8-1.2 wt% of cerium oxide and 0.4-0.8 wt% of a polydopamine carbon skeleton); and the balance of modified alumina; the arsenic removal agent has low cost, high activity and high safety; through carrier surface regulation and multi-component synergy, the arsenic removal agent realizes synchronous deep removal of arsenic, mercury and sulfur under ultra-low silver loading (<1%), effectively inhibits the generation of silver acetylide and carbon deposition, the agent does not need to add an additional mercury / sulfur removal bed, significantly reduces investment, and guarantees long-period stable operation of the ethylene device.