Oxymethylene dimethyl ethers (OME_n) are attracting a lot of research interest but application in chemical industry is not yet practical due to a number of challenges. In this work, OME_n production is reported from methanol mediated heterogeneous catalytic CO_x hydrogenation over Ru catalysts. Highest yield was achieved over 3%Ru/BEA at 150 °C, 75 barg and H₂/CO₂ molar ratio of 3. Molecular sieve water adsorbent was used during CO₂ hydrogenation to remove water, which increased the selectivity towards OME_n. An investigation of reaction mechanism showed the dominancy of formaldehyde intermediate route over methyl formate route for 3%Ru/BEA catalyst. In present study, CO₂ hydrogenation provided the maximum OME₁ and OME₂ yields of 7.42 and 2.13 mmol/g_cat.L_MeOH, respectively at the above conditions.

甲醛二甲基醚（OME _n）吸引了许多研究兴趣，但是由于许多挑战，在化学工业中的应用尚不实用。在这项工作中，报道了在Ru催化剂上甲醇介导的非均相催化CO _x加氢导致OME _n的产生。最高产率在150℃，在3％的Ru / BEA实现，75巴表压和H ₂ / CO ₂摩尔比的3 CO期间使用分子筛水分吸附剂₂氢化以除去水，其朝向OME增加的选择性_Ñ。对反应机理的研究表明，对于3％Ru / BEA催化剂，甲醛中间途径比甲酸甲酯途径占优势。在本研究中，CO ₂加氢提供的最大OME ₁和OME _2个产量的7.42和2.13毫摩尔/克_猫.L _MeOH中，分别在上述条件。