Preparation method of catalytic cracking fuel gas sulfur transfer additive active component
An active component, catalytic cracking technology, applied in the field of flue gas desulfurization
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Embodiment 1
[0023] 1. Calcining magnesium aluminum hydrotalcite with a magnesium aluminum molar ratio of 3 at 450°C for 3 hours;
[0024] 2. Weigh 3g of the roasted product in step 1, dissolve it in 30ml deionized water to make a slurry, add 0.66g Ce(NO 3 ) 3 ·6H 2 O, heated to 100°C under stirring, kept at a constant temperature for 2 hours, filtered and washed until the pH value was neutral, and then dried to obtain the hydrotalcite-like precursor of the active component of the catalytic cracking flue gas sulfur transfer agent;
[0025] 3. After roasting at 800°C for 2 hours, the active component of catalytic cracking flue gas sulfur transfer agent can be obtained.
Embodiment 2
[0027] 1. Calcining magnesium aluminum hydrotalcite with a magnesium aluminum molar ratio of 2.2 at 450°C for 3 hours;
[0028] 2. Weigh 3g of the roasted product in step 1, dissolve it in 50ml of deionized water to make a slurry, add 0.66g of Ce(NO 3 ) 3 ·6H 2 O, heated to 100°C under stirring, kept at a constant temperature for 2 hours, filtered and washed until the pH value was neutral, and then dried to obtain the hydrotalcite-like precursor of the active component of the catalytic cracking flue gas sulfur transfer agent;
[0029] 3. Roast at 800°C for 2 hours to obtain the active component of catalytic cracking flue gas sulfur transfer agent.
Embodiment 3
[0031] 1. Calcining magnesium aluminum hydrotalcite with a magnesium aluminum molar ratio of 4 at 450°C for 3 hours;
[0032]2. Weigh 3g of the roasted product in step 1, dissolve it in 30ml deionized water to make a slurry, add 0.66g Ce(NO 3 ) 3 ·6H 2 O, heated to 100°C under stirring, kept at a constant temperature for 2 hours, filtered and washed until the pH value was neutral, and then dried to obtain the hydrotalcite-like precursor of the active component of the catalytic cracking flue gas sulfur transfer agent;
[0033] 3. Roast at 800°C for 2 hours to obtain the active component of catalytic cracking flue gas sulfur transfer agent.
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