Unsaturated hydrocarbon hydrogenation catalyst, preparation method and applications thereof
A hydrogenation catalyst and unsaturated technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve unsuitable problems, improve distribution, broaden Comprehensive utilization of pathways and the effect of inhibiting side reactions
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Embodiment 1
[0030] The weight percentage content of nickel oxide in the unsaturated hydrocarbon hydrogenation catalyst of the present embodiment is 8.0%, the weight percentage content of other metal oxides is 5.6%, the weight percentage content of auxiliary agent is 3.0%, and the balance is carrier; Metal oxides are cobalt oxide (3.6%) and iron oxide (2.0%), additives are magnesium oxide (2.4%) and lanthanum oxide (0.6%), and the carrier has a specific surface area of 130m 2 / g, a strip-shaped alumina carrier with a pore volume of 0.3mL / g.
[0031] Its preparation method is:
[0032] (1) Pretreatment of the carrier: at a temperature of 40°C, the specific surface area is 130m 2 / g, the bar-shaped aluminum oxide carrier with a pore volume of 0.3mL / g is soaked in dilute nitric acid or acetic acid with a mass concentration of 3% for 2.5h, and then the soaked carrier is washed to neutral with deionized water , and then dried in an oven at a temperature of 120°C;
[0033] (2) Preparation o...
Embodiment 2
[0037]The unsaturated hydrocarbon hydrogenation catalyst of this embodiment is the same as that of embodiment 1, wherein the difference is that other metal oxides are one or three of molybdenum oxide, cobalt oxide and iron oxide, or molybdenum oxide and cobalt oxide , or molybdenum oxide and iron oxide; additives are magnesium oxide and cerium oxide, or lanthanum oxide and cerium oxide, or magnesium oxide, lanthanum oxide and cerium oxide; the carrier used is titanium dioxide or titanium-aluminum composite oxide.
[0038] Its preparation method is with embodiment 1.
[0039] After the unsaturated hydrocarbon catalyst of this example was heat-resistant at 500°C for 3.5 hours, the hydrogenation activity, specific surface area and pore volume of the catalyst before and after heat resistance did not change significantly. target, tube pressure 40KV, tube flow 80mA) to analyze and measure the catalyst before and after heat resistance, the crystal phase of the catalyst has no obvious...
Embodiment 3
[0041] The weight percent content of nickel oxide in the unsaturated hydrocarbon hydrogenation catalyst of this embodiment is 10.0%, the weight percent content of other metal oxides is 1.0%, the weight percent content of auxiliary agent is 1.0%, and the balance is carrier; The metal oxide is molybdenum oxide, the additives are lanthanum oxide (0.5%) and cerium oxide (0.5%), and the carrier has a specific surface area of 280m 2 / g, granular titanium-aluminum composite oxide carrier with a pore volume of 0.6mL / g.
[0042] Its preparation method is:
[0043] (1) Pretreatment of the carrier: at a temperature of 30°C, the specific surface area is 280m 2 / g, the granular titanium-aluminum composite oxide carrier with a pore volume of 0.6mL / g is soaked in dilute nitric acid or acetic acid with a mass concentration of 2% for 3h, and then the soaked carrier is washed to neutral with deionized water, Then place the temperature in an oven at 110°C for drying;
[0044] (2) Preparatio...
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