Catalyst for deoxygenation of calcium carbide furnace gas and method preparation thereof
A calcium carbide furnace gas and catalyst technology, applied in chemical instruments and methods, metal/metal oxide/metal hydroxide catalysts, physical/chemical process catalysts, etc., can solve the problem of low activity and anti-toxicity of non-precious metal active components Low temperature, high reaction temperature and other problems, to achieve the effect of strong anti-toxicity, simple preparation method and low reaction temperature
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Embodiment 1
[0044] The calcium carbide furnace gas deoxidation catalyst of this embodiment is composed of (by weight) 30% active components, 10% coagents and 60% carriers, and the active components are cuprous oxide and It is equivalent to platinum sulfide with 3% platinum, the coagent is iron chloride and zinc nitrate equivalent to 10% iron oxide and zinc oxide content in the catalyst, and the carrier is silicon dioxide. The preparation method is as follows:
[0045] (1) Take 24.3g of cuprous oxide and 60g of silicon dioxide and mix them evenly;
[0046] (2) kneading the mixture obtained in step (1), extruding it into strands, drying at 100°C for 4 hours, and calcining at 400°C for 4 hours to obtain a catalyst precursor;
[0047] (3) Take 3.49g of platinum sulfide, 14.6g of ferric chloride (equivalent to 6.5g of iron oxide), 8.17g of zinc nitrate (equivalent to 3.5g of zinc oxide), add deionized water to dissolve and prepare an impregnation solution;
[0048] (4) Immerse the prepared ca...
Embodiment 2
[0050] The calcium carbide furnace gas deoxidation catalyst of this embodiment is composed of (by weight) 40.1% active components, 20% active additives, and 39.9% carrier. The active component is copper acetate equivalent to 40% of copper oxide and platinum nitrate equivalent to 0.1% of platinum, the coagent is composed of aluminum chloride and zinc chloride equivalent to 20% of aluminum oxide and zinc oxide in the catalyst, and the carrier is zirconia.
[0051] (1) Dissolve 45.5g of copper acetate, 26.2g of aluminum chloride (equivalent to 10g of aluminum oxide) and 16.8g of zinc chloride (equivalent to 10g of zinc oxide) in deionized water to form a solution;
[0052] (2) Take 39.9 g of zirconia, add the prepared solution in step (1) for kneading, extrusion molding, drying at 120°C for 3 hours, and roasting at 300°C for 5 hours to obtain a catalyst precursor;
[0053] (3) Take 0.16g of platinum nitrate to make a solution;
[0054] (4) Immerse the prepared catalyst precursor...
Embodiment 3
[0056] The calcium carbide furnace gas deoxidation catalyst of this embodiment consists of (by weight) 52.1% active components, 30% active additives, and 17.9% carrier. The active component is copper acetate equivalent to 50% copper oxide and platinum sulfide equivalent to 2.1% of platinum, the coagent is composed of aluminum acetate, iron acetate and zinc acetate equivalent to 30% of aluminum oxide, iron oxide and zinc oxide in the catalyst, and the carrier is silicon dioxide.
[0057] (1) Dissolve 113.8g of copper acetate, 40.0g of aluminum acetate (equivalent to 10g of aluminum oxide), 45.7g of iron acetate (equivalent to 10g of iron oxide) and 35.9g of zinc acetate (equivalent to 10g of zinc oxide) in deionized water, dubbed into a solution;
[0058] (2) Take 17.9g of silicon dioxide, add the prepared solution in step (1) for kneading, extrusion molding, drying at 120°C for 3 hours, and roasting at 400°C for 4 hours to obtain a catalyst precursor;
[0059] (3) Take 2.44g ...
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