High-temperature sintering type catalyst for preparing light olefins from synthetic gas and preparation method thereof
A high-temperature sintering, low-carbon olefin technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of low low-carbon olefin selectivity, low CO conversion rate, etc. The conversion rate, the improvement of the reactivity and the good thermal stability
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Embodiment 1
[0027] Weigh 19.0 grams of magnetite (Fe 3 o 4 ), 8.0 grams of titanium oxide (TiO 2 ), 2.5 grams of magnesium oxide (MgO), 0.9 grams of potassium carbonate (K 2 CO 3 ) and 70.0 g of α-alumina (α-Al 2 o 3 ) Five kinds of raw materials and 3 grams of carbon black powder with a weight percentage of 3% by weight of the total amount of raw materials were milled and mixed for 2 hours in a ball mill; The kneaded material is kneaded until soft; the kneaded material is sent into the extruder, made into a strip with a diameter of 5mm, and cut into a column with a length of 20mm. After natural drying, it is sent to the drying equipment , dried at 120°C for 8 hours for later use; the dried precursor was sent into a high-temperature furnace, calcined at 1400°C for 6.0 hours, and after cooling, it was crushed and sieved into 60-80 meshes to obtain the desired high-temperature sintered catalyst. The prepared catalyst comprises the following components in weight percent: 19% Fe 3 o 4...
Embodiment 2
[0030] Weigh 19.0 grams of magnetite (Fe 3 o 4 ), 8.0 grams of titanium oxide (TiO 2 ), 2.5 grams of magnesium oxide (MgO), 0.9 grams of potassium carbonate (K 2 CO 3 ), 0.1 g rhenium dioxide (ReO 2 ) and 69.9 g of α-alumina (α-Al 2 o 3 ) Six kinds of raw materials and 3 grams of carbon black powder with a weight percentage of 3% by weight of the total amount of raw materials were mixed in a ball mill for 2 hours; The kneaded material is kneaded until soft; the kneaded material is sent into the extruder, made into a strip with a diameter of 5mm, and cut into a column with a length of 20mm. After natural drying, it is sent to the drying equipment , dried at 120°C for 8 hours for later use; the dried precursor was sent into a high-temperature furnace, calcined at 1400°C for 6.0 hours, and after cooling, it was crushed and sieved into 60-80 meshes to obtain the desired high-temperature sintered catalyst. The prepared catalyst comprises the following components in weight pe...
Embodiment 3
[0033] Weigh 19.0 grams of magnetite (Fe 3 o 4 ), 8.0 grams of titanium oxide (TiO 2 ), 2.5 grams of magnesium oxide (MgO), 0.9 grams of potassium carbonate (K 2 CO 3 ), 1.0 g rhenium dioxide (ReO 2 ) and 70.0 g of α-alumina (α-Al 2 o 3 ) Six kinds of raw materials and 3 grams of carbon black powder with a weight percentage of 3% by weight of the total amount of raw materials were mixed in a ball mill for 2 hours; The kneaded material is kneaded until soft; the kneaded material is sent into the extruder, made into a strip with a diameter of 5mm, and cut into a column with a length of 20mm. After natural drying, it is sent to the drying equipment , dried at 120°C for 8 hours for later use; the dried precursor was sent into a high-temperature furnace, calcined at 1400°C for 6.0 hours, and after cooling, it was crushed and sieved into 60-80 meshes to obtain the desired high-temperature sintered catalyst. The prepared catalyst comprises the following components in weight pe...
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