Abstract

The conversion of cinnamaldehyde (CALD) to Cinnamyl alcohol (CALC) over a Pt/SiO₂ catalyst was investigated. To achieve maximum CALC production, the historical data design of using a response surface methodology (RSM) experimental design was applied to Correlate and optimize the operation process variables (i.e., catalyst amount, 0.1-0.3 g; reaction temperature, 70-110 °C; pressure, 20-40 bar; and reaction time, 30-360 min) for the CALD conversion and selectivity for CALC. The obtained experimental values of the conversion and selectivity were in good agreement with those predicted by a second-order quadratic model, indicating the suitability of the model to estimate the conversion and selectivity. The maximum CALD conversion and selectivity for CALC were 98.905% and 80.295%, respectively, at the following conditions: temperature, 75.96 °C; pressure, 20.11 bar; catalyst amount, 0.19 g; and reaction time, 296.59 min.

摘要

_{在 Pt/SiO 2}上将肉桂醛 (CALD) 转化为肉桂醇 (CALC)催化剂进行了研究。为了实现最大的 CALC 产量，使用响应面方法 (RSM) 实验设计的历史数据设计用于关联和优化操作过程变量（即催化剂用量，0.1-0.3 g；反应温度，70-110 °C ; 压力, 20-40 bar; 和反应时间, 30-360 min) 用于 CALD 转化和 CALC 选择性。得到的转化率和选择性实验值与二阶二次模型预测值吻合较好，表明该模型适用于估算转化率和选择性。在以下条件下，CALD 的最大转化率和 CALC 选择性分别为 98.905% 和 80.295%：温度，75.96 °C；压力，20.11 巴；催化剂用量，0.19 g；和反应时间，296.59 分钟。