5 results about "Acetylene hydrogenation" patented technology

The application provides a MgAlCe-LDH supported Pd-CeO2 composite catalyst, a preparation method thereof and an acetylene hydrogenation method. The composite catalyst comprises a core component, a promoter and a carrier; the core component is loaded on the carrier, and the promoter is grown on the surface of the carrier; the core component is Pd, the promoter is CeO2, and the carrier is a MgAlCe-LDH carrier; in the carrier, the doping mole percentage of Ce is 2.5-10.0 mol%; the loading amount of Pd is 0.06-0.20 wt% and the loading amount of CeO2 is 0.8-4.0 wt% based on 100 wt% of the total mass of the dry base of the composite catalyst. The application further provides a preparation method of the above catalyst and an acetylene hydrogenation method based on the catalyst. The catalyst can catalytically reduce acetylene to generate ethylene with high conversion rate and high selectivity.

This invention discloses a control method, electronic equipment, storage medium, and a method for acetylene hydrogenation to ethylene production from a three-stage C2 hydrogenation reactor. The control method includes: controlling the inlet temperature of the first-stage C2 hydrogenation reactor based on the volume fraction of the product emanating from the first-stage reactor; controlling the inlet temperature of the second-stage C2 hydrogenation reactor based on the volume fraction of the product emanating from the second-stage reactor; and controlling the inlet temperature of the third-stage C2 hydrogenation reactor based on the volume fraction of the product emanating from the third-stage reactor. This invention solves the problem of ethylene loss due to over-hydrogenation in three-stage pre-hydrogenation C2 hydrogenation reactors, increasing the stability of ethylene production, lowering the reaction temperature compared to traditional methods, reducing the risk of temperature runaway, improving the selectivity and operational stability of the C2 hydrogenation reactor, and simultaneously reducing steam consumption by lowering the reaction temperature.

The application provides a PDA modified MgAl-LDH supported Pd-based catalyst, a preparation method thereof and an acetylene hydrogenation method. The preparation method comprises the following steps: mixing a MgAl-LDH dispersion liquid and a first modifier solution to obtain a modified carrier; mixing and reacting the modified carrier solution and a Pd precursor solution, and performing centrifugal separation and drying to obtain the PDA modified MgAl-LDH supported Pd-based catalyst; and the first modifier is selected from dopamine hydrochloride. The application also provides the PDA modified MgAl-LDH supported Pd-based catalyst prepared by the above method and an acetylene hydrogenation method based on the catalyst. The PDA modified MgAl-LDH supported Pd-based material is used as the catalyst in the application, the modified carrier significantly enhances the interaction between the active component and the carrier, and the catalyst performance is obviously improved.

A system for producing hydrogen is disclosed which comprises an acetylene hydrogenation unit configured to receive a compressed cracked gas and produce a purified, compressed cracked gas; a chilling t

The application provides a MgAl-LDH supported PdAg bimetallic catalyst, a preparation method of the catalyst and an acetylene hydrogenation method. The MgAl-LDH supported PdAg bimetallic catalyst contains, with the total dry base mass of the MgAl-LDH supported PdAg bimetallic catalyst being 100 wt%, 0.02-0.08% of a core component, 0.09-0.3% of an auxiliary agent and 99.50-99.95% of a carrier; the core component and the auxiliary agent are loaded on the carrier; the carrier is a magnesium-aluminum hydrotalcite, the core component is Pd, and the auxiliary agent is Ag. The application further provides a preparation method of the catalyst and an acetylene hydrogenation method based on the catalyst. The catalyst can catalytically reduce acetylene to ethylene with high conversion rate and high selectivity.