CAJ | 학술논문

研究考察了实验室制备的铜基催化剂对乙酸甲酯（MeOAc）催化加氢的催化性能，结果表明 Cu/ZnO 催化剂效果较差，而添加Al元素的Cu-ZnO/Al2O3催化剂效果较好。同时采用单管反应器研究了MeOAc催化加氢制乙醇的反应性能，采用30～60目Cu-ZnO/Al2O3（Ⅱ）催化剂，通过实验考察了温度、空速、进料配比和压力4个因素对反应活性和选择性的影响。结果表明，反应温度230℃，高H2/MeOAc配比和低空速有利于反应，考察的压力范围对反应影响不显著，获得的最高转化率达0.954，对应的选择性为0.974，而获得的最高选择性达0.989，对应的转化率为0.920，具有工业开发价值。对于难分离的甲醇和乙酸乙酯，提出了低温分离的气相色谱方法，具有很好的基线分离效果。
연구고찰료실험실제비적동기최화제대을산갑지（MeOAc）최화가경적최화성능，결과표명 Cu/ZnO 최화제효과교차，이첨가Al원소적Cu-ZnO/Al2O3최화제효과교호。동시채용단관반응기연구료MeOAc최화가경제을순적반응성능，채용30～60목Cu-ZnO/Al2O3（Ⅱ）최화제，통과실험고찰료온도、공속、진료배비화압력4개인소대반응활성화선택성적영향。결과표명，반응온도230℃，고H2/MeOAc배비화저공속유리우반응，고찰적압력범위대반응영향불현저，획득적최고전화솔체0.954，대응적선택성위0.974，이획득적최고선택성체0.989，대응적전화솔위0.920，구유공업개발개치。대우난분리적갑순화을산을지，제출료저온분리적기상색보방법，구유흔호적기선분리효과。
Different copper-based catalysts manufactured in laboratory were evaluated in hydrogenation of methyl acetate to ethanol. The Cu-ZnO/Al2O3 catalyst was good but the Cu/ZnO catalyst was not. Methyl acetate hydrogenation over Cu-ZnO/Al2O3(Ⅱ)(30~60 mesh) was studied in a tubular reactor,and the influences of reaction temperature,space velocity,feed molar ratio and pressure factor were studied through orthogonal experiments. Reaction temperature of 230℃,higher ratio of H2/methyl acetate,lower space velocity were beneficial to the reaction,the effect of reaction pressure in the range of investigation was not significant. The highest conversion was up to 0.954,its corresponding selectivity was 0.974,while the highest selectivity was up to 0.989,and its corresponding conversion was 0.920. Gas chromatography at low temperature was used to analyze methanol and ethyl acetate,which were difficult to separate,and achieved perfect baseline separation.