In this work, with an attempt to improve both economic and ecological aspects towards green production of methanol, an external magnetic field was equipped with a catalytic packed-bed reactor for selective production of methanol through CO₂ hydrogenation over Cu and Fe loaded on microporous ZSM-5 zeolite. The effects of reaction temperatures (180–260 °C) and CO₂/H₂ molar ratios (1:1–1:4) on selective methanol production were investigated under magnetic field direction of North-to-South (or N–S) at a flux intensity of 27.7 mT, and compared to those obtained without the magnetic field (conventional process). It was found that with the external magnetic field, the outstanding improvement in catalytic activity and selectivity of CO₂ hydrogenation was observed. The highest CO₂ conversion over 10Cu-10Fe/ZSM-5 catalyst was obtained at the CO₂/H₂ molar ratio of 1:3 under an external magnetic field. In addition, the alcohol production favored a lower reaction temperature. Using the external magnetic field, the CO₂ conversion and selectivity to methanol were increased by factors of 1.7 and 2.24 at 220 °C, respectively. The application of magnetic field therefore helps facilitate CO₂ adsorption and leads to selective methanol production, resulting in the opportunities to provide a green and sustainable innovation in chemical and petrochemical processes.

在这项工作中，为了改善绿色生产甲醇的经济和生态方面，外部磁场配备了催化填充床反应器，用于通过负载在微孔ZSM上的Cu和Fe上的CO ₂加氢来选择性生产甲醇-5沸石。在北-南磁场（或N-S）的磁场方向上，研究了反应温度（180-260°C）和CO ₂ / H ₂摩尔比（1：1-1：4）对选择性甲醇生产的影响。 ）在27.7 mT的通量强度下进行比较，并与没有磁场的情况下进行比较（常规过程）。发现在外部磁场的作用下，CO _2的催化活性和选择性显着提高。观察到氢化。在外部磁场下，CO ₂ / H ₂摩尔比为1：3时，获得了超过10Cu-10Fe / ZSM-5催化剂的最高CO ₂转化率。另外，醇的产生有利于较低的反应温度。使用外部磁场，在220°C下，CO _2的转化率和对甲醇的选择性分别提高了1.7和2.24倍。因此，磁场的施加有助于促进CO _2的吸附并导致甲醇的选择性生产，从而为在化学和石化工艺中提供绿色，可持续的创新提供了机会。