Catalysis Communications ( IF 3.4 ) Pub Date : 2020-09-15 , DOI: 10.1016/j.catcom.2020.106169 Chaowat Autthanit , Chakkrit Khaochartchai , Piyasan Praserthdam , Bunjerd Jongsomjit
The catalytic ethanol dehydration and dehydrogenation over γ-Al2O3-P catalysts with Pd modification were investigated. The Al2O3-P is promising to obtain the highest yield of diethyl ether (ca. 38.4%) at 350 °C attributing to increased portion of weak/moderate to strong acid site. Further investigation was conducted with Pd modification on this catalyst. It revealed that the 0.5Pd/Al2O3-P catalyst produced diethyl ether yield of ca. 33.3% at 350 °C with significant amount of acetaldehyde at low temperature. Increased reaction temperature to 400 °C obtained the highest ethylene yield (ca. 43.7%) with this catalyst because of both acid site and Pd site.
中文翻译:
对的催化性能的Pd改性效果阐明的γ-Al 2 ö 3 -P朝向乙醇脱水和脱氢催化剂
催化乙醇脱水和脱氢以上的γ-Al 2 ö 3 -P催化剂以Pd修饰进行了研究。Al 2 O 3 -P有望在350°C下获得最高的乙醚收率(约38.4%),这归因于弱酸/中酸至强酸部位的增加。对该催化剂进行了Pd改性的进一步研究。结果表明,0.5Pd / Al 2 O 3 -P催化剂产生的乙醚产率约为。在350°C下为33.3%,在低温下有大量乙醛。由于该酸位点和Pd位点,使用该催化剂将反应温度提高至400°C可获得最高的乙烯收率(约43.7%)。