【摘要】 用山西省浑源地区膨润土为原料制备Al-B复合交联膨润土,考察了Al/B(摩尔比)对交联产品的d(001)及其轻柴油裂化活性的影响,测定了样品的吡啶吸附红外图及比表面积。结果表明,Al-B复合交联膨润土有较高的热稳定性;与纯Al-交联膨润土比较,在同样条件下有较高的裂化活性。Al-B复合交联膨润土经400℃焙烧后,裂化活性达到最高值(85),550℃焙烧后的裂化活性仍达70,在580℃的反应温度下,裂化活性为85.3。更多还原

【Abstract】 Al-B-Cross-Linked Bentonite (Al-B-CLB) was prepared from bento-nite of the Hunyuan Prefecture of Shanxi Province. Effect of Al/B (molar ratio) on of(001) and the cracking activity for light diesel oil of the cross-linked products were studied. The specific surface area and IR spectrum of adsorbed pyridine were determined respectively with metha-nol adsorption and PE-577 IR spectrometer. The results show that Al-B-CLB has a higher thermal stability. Compared with Al-cross-linked bentonite, the cracking activity of Al-B-CLB is higher under the same conditions. After calcination at 400℃ for 3 h, the microactivity of Al-B-CLB comes to a climax(85), and reaches 70 even on calcination at 550℃ for 3 h. When cracking reaction carried out at 580℃, its microactivity is 85.3. Lewis type acid predominates as Al-B-CLB treated at 400℃, the total amount of acid is 0.252 mmol/g.更多还原