83results about How to "Play the role of physical peptization" patented technology

The invention discloses an alumina formed body, a preparation method and an application thereof, and a production forming system. The preparation method comprises the following steps: optionally drying a formed body of a hydrated alumina composition having a phi value being 5 or less and containing hydrated alumina and a compound having at least two proton acceptor sites, and calcining the dried formed body in an oxygen-containing atmosphere in the presence of water steam. The invention also discloses a catalyst having a hydrogenation catalysis effect and using the alumina formed body as a carrier, a preparation method thereof, and a hydrotreatment method. The formed body having a high strength is prepared from hydrated alumina wet gel, so the step for drying the hydrated alumina wet gel is omitted, the total process flow is simplified, the total operating energy consumption is reduced, dust pollution is avoided, and the working environment is improved. The catalyst prepared by adopting the alumina formed body as a carrier has an improved catalysis activity in hydrocarbon oil hydrotreatment.

The invention discloses a halogen-containing alumina molded body and a preparation method and application thereof. The preparation method comprises optionally drying a molded body of a hydrated alumina composition containing hydrated alumina, a compound containing at least two proton acceptor sites and a halogen-containing compound and having the phi value of 5 or less shown in the description, and roasting the molded body in an oxygen-containing atmosphere in the presence of vapor. The invention also discloses a catalyst using the alumina molded body as a carrier and having hydrogenation catalysis effects, a preparation method thereof and a hydrogenation treatment method. The high strength molded body is prepared from hydrated alumina wet gel as a starting raw material so that the hydrated alumina wet gel drying process is avoided. The overall processes are reduced, overall operation energy consumption is reduced, the dust pollution is avoided and the working environment is greatly improved. The catalyst using the alumina molded body as a carrier has high catalytic activity in the hydrotreatment on hydrocarbon oil.

The invention discloses a phosphorous-containing hydrated alumina composition and molded body, a preparation method and application thereof, a catalyst and a preparation method thereof. The composition contains hydrated alumina, a compound containing at least two proton acceptor sites and a boron-containing compound. The composition has the phi value of 5 or less shown in the description. The invention also discloses a catalyst using the molded body of the phosphorous-containing hydrated alumina composition as a carrier and having hydrogenation catalysis effects, a preparation method thereof and a hydrogenation treatment method. The high strength molded body is prepared from hydrated alumina wet gel as a starting raw material so that the hydrated alumina wet gel drying process is avoided.In molded raw material preparation, water for preparation of the molded material from pseudo-boehmite dry glue powder is avoided so that the overall processes are reduced, overall operation energy consumption is reduced, the dust pollution caused by the use of pseudo-boehmite dry glue powder as a raw material is avoided and the working environment is greatly improved.

The invention discloses a hydrogenation protection catalyst, a preparation method and applications thereof, wherein the catalyst contains a carrier and a hydrogenation active component supported on the carrier, the carrier is formed by molding a hydrated alumina composition, and the hydrated alumina composition contains hydrated alumina and a compound having at least two proton acceptor sites, andhas the [phi] value of the composition is 1.8-5. The present invention further discloses a hydrocarbon oil hydrotreatment method using the catalyst. According to the present invention, the high-strength carrier is prepared by using the hydrated alumina wet gel as the starting raw material, such that the hydrated alumina wet gel drying step is eliminated, the total process is simplified, the wholeoperation energy consumption is reduced, the dust pollution caused by the application of the pseudoboehmite dry glue powder as the carrier preparation raw material is avoided, and the working environment is substantially improved; and the hydrogenation protection catalyst has high catalytic activity, can effectively reduce the metal impurity content in hydrocarbon oil, and can prolong the servicelife of the hydrogenation catalysis main agent.

The invention discloses a hydrated alumina composition and a preparation method thereof, a molding body, a preparation method and applications thereof, and a production molding system. The hydrated alumina composition contains hydrated alumina and a compound having at least two proton acceptor sites, wherein the [phi] value of the composition is 1.8-5. The present invention further discloses a catalyst using a molding body formed from the hydrated alumina composition as a carrier and having hydrogenation catalysis effect, and a preparation method thereof, and a hydrotreating method. Accordingto the present invention, the high-strength molding body is prepared by using the hydrated alumina wet gel as the starting raw material, such that the hydrated alumina wet gel drying step is eliminated; during the preparation of the molding raw material, the pseudoboehmite dry glue powder is blended into the moldable material without the adding of water, such that the total process is simplified,the operation energy consumption is reduced, and the dust pollution caused by the application of the pseudoboehmite dry glue powder as the raw material is avoided; and the catalyst using the molding body prepared from the hydrated alumina composition as the carrier has high catalytic activity in the hydrogenation of hydrocarbon oils.

The invention discloses an alumina formed body, a preparation method and an application thereof, and a production forming system. The preparation method comprises the following steps: optionally drying a formed body of a silicon-containing hydrated alumina composition having a phi value being 5 or less and containing hydrated alumina, a compound having at least two proton acceptor sites and a silicon-containing compound, and calcining the dried formed body in an oxygen-containing atmosphere in the presence of water steam. The invention also discloses a catalyst having a hydrogenation catalysiseffect and using the alumina formed body as a carrier, a preparation method thereof, and a hydrotreatment method. The formed body having a high strength is prepared from hydrated alumina wet gel, sothe step for drying the hydrated alumina wet gel is omitted, extra water introduced for processing dry glue powder into a formable material is avoided during the preparation of a formed raw material,the total process flow is simplified, the total operating energy consumption is reduced, dust pollution initiated by pseudo-boehmite dry glue powder used as a raw material is avoided, and the workingenvironment is improved.