Petroleum hydrocarbon catalytic pyrolysis catalyst and its application
A catalytic cracking and catalyst technology, applied in the petroleum industry, reformed naphtha, organic chemistry, etc., can solve the problems of small processing capacity of catalyst raw materials, low practicability, low raw material concentration, etc., and achieve good industrial application value. and prospects, increasing the throughput, and the effect of high air velocity of the reaction gas
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Embodiment 1
[0032] ZRP(SiO 2 / Al 2 o 3 molar ratio 200), lanthanum acetate, sodium metavanadate, and potassium dihydrogen phosphate are mixed, then 200ml of distilled water is added, fully stirred at 40°C, dried at 120°C, and roasted at 800°C for 4 hours. catalyst. In the catalyst (weight content), lanthanum accounts for 4.64%, vanadium 4.66%, and phosphorus 0.85%.
[0033] Using the above catalyst, naphtha is used as raw material, the weight ratio of water and naphtha is 0.592, and the weight space velocity is 5.12hr -1 , when the reaction temperature was 750°C, the product yield (relative to raw material) of catalytic cracking was shown in Table 1:
[0034] The test result of table 1 embodiment 1
[0035]
Embodiment 2
[0037] ZRP(SiO 2 / Al 2 o 3 The molar ratio is 200), lanthanum oxide, barium oxide, and potassium dihydrogen phosphate are mixed, and then the binder is added as starch, fully stirred, kneaded, and then extruded. The molded catalyst was dried at 120° C. and calcined at 800° C. for 4 hours to prepare the catalyst. In the catalyst (weight content), lanthanum accounts for 10.41%, barium 5.33%, and phosphorus 0.70%. Under the processing condition identical with embodiment 1, use above-mentioned catalyst to carry out catalytic cracking reaction, product yield (relative raw material) sees Table 2:
[0038] The test result of table 2 embodiment 2
[0039]
Embodiment 3
[0041] ZRP(SiO 2 / Al 2 o 3 The molar ratio is 180), lanthanum oxide, sodium metavanadate, and boron oxide are mixed, and then the binder is added as starch, fully stirred, kneaded, and then extruded. The molded catalyst was dried at 120° C. and calcined at 800° C. for 4 hours to prepare the catalyst. In the catalyst (weight content), lanthanum accounts for 10.1%, vanadium 2.47%, and boron 1.84%.
[0042] Use above-mentioned catalyzer, take naphtha as raw material, under the processing condition identical with embodiment 1, the product yield (relative raw material) of catalytic cracking is shown in Table 3:
[0043] The test result of table 3 embodiment 3
[0044]
PUM
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