响应面法优化Ni-P/APO-11非晶态催化剂催化松节油加氢反应

Optimization of Ni-P/APO-11 amorphous catalyst for catalytic hydrogenation of turpentine using response surface methodology

以二异丙胺、氢氧化铝为原料,采用水热合成法制得APO-11磷酸铝分子筛。采用化学还原法制备非晶态Ni-P/APO-11催化剂用于α-蒎烯加氢反应,考察了α-蒎烯加氢反应条件,通过响应面法实现进一步优化,而后采用XRD、BET、SEM、XPS、ICP等对该催化剂进行了表征。结果显示,在反应温度124.8℃,反应压力4.9 MPa,催化剂用量6.3%,反应时间90 min时,α-蒎烯转化率为99.45%,顺式蒎烷选择性97.35%。为进一步拓宽该催化剂使用范围及提高松节油体系的深加工利用水平,将该催化剂用于松节油其他组分的加氢反应中,展现出良好的催化活性,原料转化率均可达到99%以上,选择性65%以上。

APO-11 aluminophosphate molecular sieve was prepared from diisopropylamine and calmogastrin by hydrothermal synthesis method. The amorphous catalysts Ni-P/APO-1 l were prepared by chemical reduction and applied in the catalytic hydrogenation of turpentine. The o：-pinene hydrogenation reactions were investigated and optimized by response surface methodology, meanwhile, amorphous catalysts were characterized by XRD, BET, SEM, XPS, and ICP. Under reaction temperature 124.8℃, reaction pressure 4.9 MPa, catalyst amount 6.3%, and reaction time 90 minutes, the conversion rate of α-pinene was 99.45%, the selectivity of cis-pinane was 97.35%. Meanwhile, the catalysts were used in catalytic hydrogenation of other components to broaden the range of catalysts and improve deep process of turpentine, the catalysts exhibited high catalytic activity, raw conversion was reached more than 99%, and the selectivity was reached more than 65%.