Method for preparing high-temperature gas desulfurizer in iron oxide by microwave
A desulfurizer, medium-high temperature technology, applied in the direction of combustible gas purification, combustible gas purification/transformation, petroleum industry, etc., can solve the problems of reduced vulcanization activity, pulverization of the internal structure of the desulfurizer, etc., to achieve mass transfer rate increase, high mechanical The effect of strength and rich pore structure
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Embodiment 1
[0020] Weigh 3.98g of ferrous chloride tetrahydrate and 2.52g of oxalic acid dihydrate, mix them and grind them in a mortar for 1 hour, then put them into a ball mill, and ball mill them at a speed of 350r / min for 2 hours. After drying the ball-milled product at 105°C for 2 hours, add 3.42g of red clay, continue to mill in a ball mill for 2 hours, add water to extrude, and dry at 105°C to obtain a desulfurizer precursor. Put the desulfurizer precursor into a microwave tube furnace, set the microwave frequency to 2450MHz, microwave power to 1000W, and use three-stage heating to process the material. First raise the temperature to 250°C in the air atmosphere to decompose the material. After reaching the target temperature, switch to the simulated Texaco gas atmosphere, raise the temperature to 350°C, and take 1000h -1 Vulcanize the material at a certain vulcanization space velocity; after the vulcanization is complete, raise the temperature to 550°C, convert it into a nitrogen-a...
Embodiment 2
[0023] Weigh 3.98g of ferrous chloride tetrahydrate and 2.52g of oxalic acid dihydrate, mix them and grind them in a mortar for 1 hour, then put them into a ball mill, and ball mill them at a speed of 400r / min for 2 hours. After drying the ball-milled product at 100°C for 2 hours, add 3.19g of red clay, continue to mill in a ball mill for 2 hours, add water to extrude, and dry at 100°C to obtain a desulfurizer precursor. Put the desulfurizer precursor into a microwave tube furnace, set the microwave frequency to 2450MHz, microwave power to 1000W, and use three-stage heating to process the material. First raise the temperature to 300°C in the air atmosphere to decompose the material. After reaching the target temperature, switch to the simulated Texaco gas atmosphere, raise the temperature to 350°C, and take 1000h -1 The vulcanization space velocity will vulcanize the material; after the vulcanization is complete, the temperature will be raised to 600°C, and it will be converte...
Embodiment 3
[0026] Weigh 3.98g of ferrous chloride tetrahydrate and 2.52g of oxalic acid dihydrate, mix them and grind them in a mortar for 1 hour, then put them into a ball mill, and ball mill them at a speed of 450r / min for 2 hours. After drying the ball-milled product at 110°C for 2 hours, add 2.96g of red clay, continue to mill in a ball mill for 2 hours, add water to extrude, and dry at 110°C to obtain a desulfurizer precursor. Put the desulfurizer precursor into a microwave tube furnace, set the microwave frequency to 2450MHz, microwave power to 1000W, and use three-stage heating to process the material. First raise the temperature to 250°C in the air atmosphere to decompose the material. After reaching the target temperature, switch to the simulated Texaco gas atmosphere, raise the temperature to 400°C, and take 1000h -1 The vulcanization space velocity will vulcanize the material; after the vulcanization is complete, the temperature will be raised to 620°C, and converted into a ni...
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