36results about How to "Physical and chemical properties are different" patented technology

The invention discloses a hydrogenation catalyst and a preparation method therefor. The preparation method for the hydrogenation catalyst comprises following steps: (1) impregnating an alumina carrier into sugar acidic solution by using incipient-wetness impregnation method; drying to make the adsorption quantity of the sugar acidic solution is 30-60% of the saturated absorption solution quantity of the alumina carrier; (2) impregnating the modified alumina carrier preparing by step (1) into zinc salt solution by using unsaturated impregnation method; (3) impregnating the roasted carrier in step (2) into fountain solution containing an adsorbent by using unsaturated impregnation method; (4) impregnating the carrier containing the adsorbent in step (3) into the solution containing active metal iron; impregnating the carrier into metal auxiliary agent after drying and roasting; and getting the catalyst preparing low carbon olefin by synthetic gas after drying and roasting. The catalyst has high activity and stability in long-time running, and facilitates industrial application and popularization.

The invention discloses a CO hydrogenation catalyst, a preparation method and application thereof. The preparation method of the catalyst comprises the following steps: (1) impregnating an alumina carrier into aqueous solution of organic compound containing nitrogen by using incipient-wetness impregnation method, drying to make the adsorption quantity of the aqueous solution of organic compound containing nitrogen is 30-60% of the saturation adsorption quantity of the alumina carrier; (2) impregnating the modified alumina carrier prepared by the step (1) into zinc salt solution by using unsaturated immersion method; (3) impregnating the roasted carrier in step (2) into fountain solution containing adsorbent by using unsaturated immersion method; (4) impregnating the carrier containing adsorbent in step (3) into the solution containing active metal iron, impregnating metal auxiliary agent after drying and roasting, and preparing the catalyst for preparing low-carbon olefin by catalyzing synthesis gas after drying and roasting. The catalyst is characterized by high activity and stability in long-term operation, and is beneficial to the industrial application and popularization.

The invention discloses a preparation method for a catalyst used in preparation of low-carbon olefin from synthetic gas. The preparation method comprises the following steps: (1) subjecting an alumina carrier to equivalent-volume saturated impregnation of an acidic solution containing sugar, then drying the alumina carrier until the adsorption quantity of the acidic solution containing sugar is 30 to 60% of the saturated solution absorption quantity of the alumina carrier and carrying out ageing, drying and roasting so as to obtain a modified alumina carrier; (2) impregnating the modified alumina carrier prepared in the step (1) in a zinc salt solution by using a nonsaturated impregnation method and then carrying out drying and roasting; (3) impregnating the roasted carrier in the step (2) with a wetting solution containing an adsorbent by using the nonsaturated impregnation method; and (4) impregnating the adsorbent-containing carrier obtained in the step (3) in a solution containing active metal iron and an auxiliary agent manganese and carrying out drying and roasting so as to obtain the catalyst used in preparation of low-carbon olefin from synthetic gas. The catalyst has the characteristics of long-cycle operation activity and high stability and is beneficial for industrial application and promotion.

The invention discloses a preparation method of a supported iron-based catalyst, which comprises the following steps: (1) The alumina carrier is equal volume saturated and impregnated with a buffer solution containing ammonium salt, and dried until the adsorption amount of the buffer solution containing ammonium salt is equal to that of the alumina carrier The amount of saturated absorption solution is 30-60%, and the modified alumina carrier is obtained after roasting; (2) The mixed aqueous solution of nickel salt and gallium salt is prepared, and the modified alumina carrier prepared in step (1) is impregnated by unsaturated impregnation method The above mixed aqueous solution is dried and then roasted; (3) impregnating the carrier after step (2) roasting with the wetting solution containing adsorbent by unsaturated impregnation method; The mixed solution of metal iron, additive manganese and additive potassium is dried and calcined to prepare a catalyst for producing low-carbon olefins from syngas. The catalyst has the characteristics of high activity and stability in long-period operation, and is beneficial to industrial application and popularization.

The invention discloses a preparation method for a catalyst used in preparation of low-carbon olefin from synthetic gas. The preparation method comprises the following steps: (1) subjecting an alumina carrier to equivalent-volume saturated impregnation of an acidic solution containing sugar, then drying the alumina carrier until the adsorption quantity of the acidic solution containing sugar is 30 to 60% of the saturated solution absorption quantity of the alumina carrier and carrying out ageing, drying and roasting so as to obtain a modified alumina carrier; (2) impregnating the modified alumina carrier prepared in the step (1) in a zinc salt solution by using a nonsaturated impregnation method and then carrying out drying and roasting; (3) impregnating the roasted carrier in the step (2) with a wetting solution containing an adsorbent by using the nonsaturated impregnation method; and (4) subjecting the adsorbent-containing carrier obtained in the step (3) to saturated co-impregnation of a mixed solution containing active metal iron, an auxiliary agent manganese and an auxiliary agent potassium after drying and carrying out drying and roasting so as to obtain the catalyst used in preparation of low-carbon olefin from synthetic gas. The catalyst has the characteristics of long-cycle operation activity and high stability and is beneficial for industrial application and promotion.

The invention discloses a catalyst for producing olefin by hydrogenation of CO and a preparation method thereof. The preparation of the catalyst comprises the following steps: (1) an aluminum oxide carrier is treated by isovolumetric saturated impregnation with an acidic solution of sugar; (2) a mixed aqueous solution of nickel salt and gallium salt is prepared, and the modified aluminum oxide carrier prepared in the step (1) is treated by impregnation with the mixed aqueous solution by a nonsaturated impregnation method; (3) wetting liquid containing an adsorbent is used for impregnation of the carrier after calcination in step (2) by using a nonsaturated impregnation method; (4) the carrier containing the adsorbent in the step (3) is treated by impregnation with a solution containing active metal iron, drying and calcination are carried out, a metal auxiliary agent is used for impregnation, and drying and calcination are carried out in order to obtain the catalyst for producing light olefin from synthetic gas. The catalyst has the characteristics of long-time cycle running as well as high activity and stability, and the catalyst is good for industrial application and promotion.

The invention discloses a preparation method for a catalyst used in preparation of low-carbon olefin from synthetic gas. The preparation method comprises the following steps: (1) with alumina as a carrier, impregnating the alumina carrier in a zinc salt solution by using an unsaturated impregnation method and then carrying out drying and roasting; (2) impregnating the roasted carrier in the step (1) with a wetting solution containing an adsorbent by using the unsaturated impregnation method; and (3) subjecting the adsorbent-containing carrier obtained in the step (2) to saturated co-impregnation of a mixed solution containing active metal iron, an auxiliary agent manganese and an auxiliary agent potassium after drying, carrying out drying and roasting, carrying out unsaturated spraying and impregnation of a metallic auxiliary agent potassium solution and subjecting the carrier to drying and roasting so as to obtain the catalyst used in preparation of low-carbon olefin from synthetic gas. The catalyst has the characteristics of long-cycle operation activity and high stability and is beneficial for industrial application and promotion.

The invention discloses a catalyst for producing olefin by hydrogenation of CO and a preparation method thereof. The preparation of the catalyst comprises the following steps: (1) an aluminum oxide carrier is treated by isovolumetric saturated impregnation with an acidic solution of sugar; (2) a mixed aqueous solution of nickel salt and gallium salt is prepared, and the modified aluminum oxide carrier prepared in the step (1) is treated by impregnation with the mixed aqueous solution by a nonsaturated impregnation method; (3) wetting liquid containing an adsorbent is used for impregnation of the carrier after calcination in step (2) by using a nonsaturated impregnation method; (4) the carrier containing the adsorbent in the step (3) is treated by impregnation with a solution containing active metal iron, drying and calcination are carried out, a metal auxiliary agent is used for impregnation, and drying and calcination are carried out in order to obtain the catalyst for producing light olefin from synthetic gas. The catalyst has the characteristics of long-time cycle running as well as high activity and stability, and the catalyst is good for industrial application and promotion.

The invention discloses a method for preparing an iron-based catalyst, which comprises the following steps: (1) The alumina carrier is saturated and impregnated with a nitrogen-containing organic compound aqueous solution, and dried until the adsorption amount of the nitrogen-containing organic compound aqueous solution is the amount of the saturated absorption solution of the alumina carrier 30-60% of the modified alumina carrier obtained after roasting; (2) Prepare a mixed aqueous solution of nickel salt and gallium salt, and the modified alumina carrier prepared in step (1) is impregnated with the above mixed aqueous solution by an unsaturated impregnation method, Drying and roasting; (3) Impregnating the carrier after step (2) roasting with the wetting solution containing the adsorbent by unsaturated impregnation method; (4) The carrier containing the adsorbent in step (3) is dried and then saturated and co-impregnated with active The mixed solution of metal iron, additive manganese and additive potassium is dried and calcined to prepare a catalyst for producing low-carbon olefins from syngas. The catalyst has the characteristics of high activity and stability in long-period operation, and is beneficial to industrial application and popularization.

The invention discloses a preparation method of a catalyst for producing low-carbon olefins from syngas, which comprises the following steps: (1) The alumina carrier is equal-volume saturated and impregnated with a buffer solution containing ammonium salt, and dried until the adsorption amount of the buffer solution containing ammonium salt is oxidized The aluminum carrier absorbs 30-60% of the saturated solution, and then the modified alumina carrier is obtained after aging, drying and roasting; (2) The modified alumina carrier prepared in step (1) is impregnated with zinc salt by unsaturated impregnation method (3) The carrier after step (2) is impregnated with the wetting solution containing adsorbent by unsaturated impregnation method; (4) The carrier containing adsorbent in step (3) is impregnated with active metal iron and A solution of manganese as an auxiliary agent is dried and calcined to prepare a catalyst for producing low-carbon olefins from syngas. The catalyst has the characteristics of high activity and stability in long-period operation, and is beneficial to industrial application and popularization.

The invention discloses a preparation method for a catalyst used in preparation of low-carbon olefin from synthetic gas. The preparation method comprises the following steps: (1) subjecting an alumina carrier to equivalent-volume saturated impregnation of an aqueous solution of an organic compound containing nitrogen, then drying the alumina carrier until the adsorption quantity of the aqueous solution of the organic compound containing nitrogen is 30 to 60% of the saturated solution absorption quantity of the alumina carrier and carrying out ageing, drying and roasting so as to obtain a modified alumina carrier; (2) impregnating the modified alumina carrier prepared in the step (1) in a zinc salt solution by using a nonsaturated impregnation method and then carrying out drying and roasting; (3) impregnating the roasted carrier in the step (2) with a wetting solution containing an adsorbent by using the nonsaturated impregnation method; and (4) subjecting the adsorbent-containing carrier obtained in the step (3) to saturated co-impregnation of a mixed solution containing active metal iron, an auxiliary agent manganese and an auxiliary agent potassium after drying and carrying out drying and roasting so as to obtain the catalyst used in preparation of low-carbon olefin from synthetic gas. The catalyst has the characteristics of long-cycle operation activity and high stability and is beneficial for industrial application and promotion.

The invention discloses a preparation method of a catalyst for producing low-carbon olefins from syngas, which comprises the following steps: (1) using alumina as a carrier to impregnate a zinc salt solution by an unsaturated impregnation method, drying and roasting; (2) using an unsaturated impregnation method Impregnate the roasted carrier in step (1) with the wetting solution containing the adsorbent; (3) dry and saturate the carrier containing the adsorbent in step (2) and co-impregnate the mixture containing active metal iron, manganese and potassium as additives The solution is dried and calcined, then unsaturated sprayed and impregnated with the metal additive potassium solution, and then dried and calcined to obtain a catalyst for preparing low-carbon olefins from synthesis gas. The catalyst has the characteristics of high activity and stability in long-period operation, and is beneficial to industrial application and popularization.

The invention discloses a preparation method of a catalyst for producing low-carbon olefins from synthesis gas, which comprises the following steps: (1) using alumina as a carrier to impregnate a zinc salt solution by an unsaturated impregnation method, drying and roasting; (2) using an unsaturated impregnation method Impregnate the calcined carrier in step (1) with a wetting solution containing an adsorbent, wherein the adsorbent is an organic amine with a carbon number of 2 to 15, and the amount of the adsorbent added accounts for 1%~10% of the weight of the carrier; (3) Step (2) The carrier containing the adsorbent is dried and impregnated with a solution containing active metal iron and additive manganese, and after drying and roasting, it is unsaturated sprayed and impregnated with the metal additive Potassium, and then dried and roasted to obtain a low-carbon olefin catalyst from synthesis gas. The catalyst has the characteristics of high activity and stability in long-period operation, and is beneficial to industrial application and popularization.

The invention discloses a catalyst for a reaction of hydrogen and carbon monoxide and a preparation method thereof. The preparation of the catalyst comprises the following steps: (1) carrying out equivalent-volume saturated impregnation on an alumina carrier with an acidic solution of sugar; (2) preparing a mixed aqueous solution of nickel salt and gallium salt, impregnating the modified alumina carrier prepared in step (1) with the above mixed aqueous solution by an unsaturated impregnation method, and drying; (3) impregnating the carrier roasted in the step (2) with a wetting solution containing an adsorbent by an unsaturated impregnation method; (4) drying the adsorbent-containing carrier obtained in the step (3) and then impregnating the carrier with a solution containing active metal iron and a promoter manganese, drying and roasting, carrying out unsaturated spraying impregnation with a metal promoter potassium, drying and roasting to prepare the catalyst for preparing low-carbon olefin by catalyzing synthesis gas. The catalyst has the characteristics of high stability of long-term running activity, which is beneficial to industrial application and popularization.

The invention discloses a preparation method for a catalyst used in preparation of low-carbon olefin from synthetic gas. The preparation method comprises the following steps: (1) subjecting an alumina carrier to equivalent-volume saturated impregnation of an aqueous solution of an organic compound containing nitrogen, then drying the alumina carrier until the adsorption quantity of the aqueous solution of the organic compound containing nitrogen is 30 to 60% of the saturated solution absorption quantity of the alumina carrier and carrying out ageing, drying and roasting so as to obtain a modified alumina carrier; (2) impregnating the modified alumina carrier prepared in the step (1) in a zinc salt solution by using a nonsaturated impregnation method and then carrying out drying and roasting; (3) impregnating the roasted carrier in the step (2) with a wetting solution containing an adsorbent by using the nonsaturated impregnation method; and (4) impregnating the adsorbent-containing carrier obtained in the step (3) in a solution containing active metal iron and an auxiliary agent manganese and carrying out drying and roasting so as to obtain the catalyst used in preparation of low-carbon olefin from synthetic gas. The catalyst has the characteristics of long-cycle operation activity and high stability and is beneficial for industrial application and promotion.

The invention discloses a low-carbon olefin preparation catalyst and a preparation method thereof. The preparation method of the catalyst comprises the following steps: 1, preparing a nickel salt and gallium salt mixed aqueous solution, and impregnating alumina used as a carrier in the mixed aqueous solution by adopting an unsaturated impregnation technology; 2, impregnating a roasted carrier obtained in step 1 in a wetting solution containing an adsorbent by adopting the an unsaturated impregnation technology, wherein the adsorbent is C2-15 organic amine; and 3, drying the adsorbent-containing carrier, obtained in step 2, impregnating the dried adsorbent-containing carrier in a solution containing active metal iron, drying the impregnated adsorbent-containing carrier, roasting the dried adsorbent-containing carrier, impregnating the roasted adsorbent-containing carrier in a metal assistant, drying the carrier, and roasting the dried carrier to prepare the synthetic gas-to-low carbon olefin catalyst. The catalyst has the characteristics of high long-time cycle running activity stability, and facilitation of industrial application and promotion.

The invention discloses a preparation method of a catalyst for producing low-carbon olefins from syngas, which comprises the following steps: (1) The alumina carrier is equal-volume saturated and impregnated with a buffer solution containing ammonium salt, and dried until the adsorption amount of the buffer solution containing ammonium salt is oxidized The aluminum carrier absorbs 30-60% of the saturated solution, and then the modified alumina carrier is obtained after aging, drying and roasting; (2) The modified alumina carrier prepared in step (1) is impregnated with zinc salt by unsaturated impregnation method solution, dried and then calcined; (3) using unsaturated impregnation method to impregnate the carrier after step (2) roasting with the wetting solution containing the adsorbent; (4) step (3) the carrier containing the adsorbent to be saturated and co-impregnated A mixed solution containing active metal iron, additive manganese and additive potassium is dried and calcined to prepare a catalyst for producing low-carbon olefins from syngas. The catalyst has the characteristics of high activity and stability in long-period operation, and is beneficial to industrial application and popularization.

The invention discloses a catalyst for synthesis gas reaction and a preparation method and application thereof. The preparation of the catalyst comprises the following steps: (1) carrying out equivalent-volume saturated impregnation on an alumina carrier with an aqueous solution of a nitrogen-containing organic compound; (2) preparing a mixed aqueous solution of nickel salt and gallium salt, and impregnating the modified alumina carrier prepared in the step (1) with the above mixed aqueous solution by an unsaturated impregnation method; (3) impregnating the carrier roasted in the step (2) with a wetting solution containing an adsorbent by an unsaturated impregnation method; (4) impregnating the adsorbent-containing carrier obtained in the step (3) with a solution containing active metal iron and a promoter manganese, drying, roasting and impregnating with a metal promoter potassium solution, drying, and roasting to produce the catalyst for preparing low-carbon olefin by catalyzing synthesis gas. The catalyst has the characteristic of high activity stability for long-term operation and is beneficial to industrial application and promotion.

The invention discloses a Fe-based hydrogenation catalyst and a preparation method therefor, wherein the preparation method comprises following steps: (1) impregnating an alumina carrier into a buffer solution containing ammonium salt by using an incipient-wetness impregnation method; drying until the adsorption quantity of the buffer solution containing ammonium salt is 30-60% of the quantity of the saturation absorbing solution of the alumina carrier; (2) impregnating the modified alumina carrier prepared by step (1) into a zinc salt solution by using an unsaturated impregnation method; (3) impregnating the roasted carrier in step (2) into a fountain solution containing an adsorbent by using the unsaturated impregnation method; (4) impregnating the carrier containing the adsorbent in step (3) into a solution containing an active metal iron; impregnating the carrier into a metal auxiliary agent after drying and roasting; getting a catalyst for preparing a low carbon olefin by synthetic gas after drying and roasting. The catalyst has high activity and stability in long-time running, and facilitates industrial application and popularization.

The invention discloses a method for preparing an iron-based catalyst, which comprises the following steps: (1) preparing a mixed aqueous solution of nickel salt and gallium salt, using alumina as a carrier to impregnate the mixed aqueous solution by an unsaturated impregnation method; (2) using an unsaturated The impregnation method impregnates the carrier after step (1) roasting with the wetting solution containing the adsorbent; (3) the carrier containing the adsorbent in step (2) is dried and then saturated and co-impregnated with active metal iron, manganese and potassium as additives The mixed solution is dried and calcined, and then unsaturated sprayed and impregnated with the metal additive potassium solution, and then dried and calcined to obtain a low-carbon olefin catalyst for syngas production. The catalyst has the characteristics of high activity and stability in long-period operation, and is beneficial to industrial application and popularization.