cis‐Pinane, the hydrogenation product of pinene, is a key chemical intermediate and its production is an important forest chemical process. In this study, α‐pinene was hydrogenated using a nickel‐supported aluminophosphate catalyst (Ni/APO‐PT) in the batch mode of operation. The pore structure of the catalyst was characterized, the process parameters were studied, the hydrogenation process was optimized, and the kinetic study was conducted. The results showed that the conversion of pinene was positively correlated with temperature, duration, and catalyst dosage. In contrast, the selectivity of cis‐pinane was negatively correlated with temperature and catalyst dosage. An optimization was performed using the response surface methodology (RSM). A selectivity of 96.2% was obtained with α‐pinene conversion of 98.5% under optimal conditions, that is, a temperature of 405 K, reaction time of 60 min, hydrogen pressure of 3 MPa, and catalyst loading of 3.32 wt%. The reusability of the catalyst was studied, and the catalyst was found to maintain efficient activity for seven cycles. The kinetics of hydrogenation were investigated using both linear and nonlinear methods in the absence of diffusional limitation. In the temperature range from 403 to 433 K, the hydrogenation of α‐pinene to pinane was compatible with the pseudo‐first‐order process, and the activation energies for the formation of cis‐pinane and trans‐pinane were 41.8 and 56.1 kJ/mol, respectively. This study shows that the performance of the Ni/APO‐PT catalyst is similar to that of noble metals and the catalyst has the potential for industrial applications.

中文翻译：

---

镍负载铝磷酸盐催化剂上α-pine烯的选择性加氢：工艺优化和反应动力学

pin烯的氢化产物顺式-in烷是重要的化学中间体，其生产是重要的森林化学过程。在这项研究中，使用镍负载的磷酸铝催化剂（Ni / APO-PT）以间歇操作方式对α-pine烯进行了氢化。表征了催化剂的孔结构，研究了工艺参数，优化了加氢工艺，并进行了动力学研究。结果表明，pin烯的转化率与温度，反应时间和催化剂用量呈正相关。相反，顺式的选择性pin烷与温度和催化剂用量呈负相关。使用响应面方法（RSM）进行了优化。在最佳条件下，即405 K的温度，60分钟的反应时间，3 MPa的氢气压力和3.32 wt％的催化剂负载量，α-pine烯转化率为98.5％，选择性为96.2％。研究了催化剂的可重复使用性，发现该催化剂在七个循环中均保持了有效的活性。在没有扩散限制的情况下，使用线性和非线性方法研究了氢化动力学。在403至433 K的温度范围内，α-pine烯加氢成hydrogen烷与拟一级反应过程以及形成顺式pin烷和pin的活化能兼容。反式-pin烷分别为41.8和56.1 kJ / mol。这项研究表明，Ni / APO-PT催化剂的性能与贵金属相似，该催化剂具有工业应用潜力。