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Direct Transformation of Ethylene to Propylene by Cascade Catalytic Reactions under Very Mild Conditions
Industrial & Engineering Chemistry Research ( IF 4.2 ) Pub Date : 2020-03-24 , DOI: 10.1021/acs.iecr.0c00450 Rémi Beucher 1 , Claudia Cammarano 1 , Enrique Rodríguez-Castellón 2 , Vasile Hulea 1
Industrial & Engineering Chemistry Research ( IF 4.2 ) Pub Date : 2020-03-24 , DOI: 10.1021/acs.iecr.0c00450 Rémi Beucher 1 , Claudia Cammarano 1 , Enrique Rodríguez-Castellón 2 , Vasile Hulea 1
Affiliation
Converting ethylene to propylene (ETP) at low temperatures, without adding other hydrocarbons, is a great challenge today. In this study, we explored an ETP process based on cascade reactions, operated in a one-pot mode over two catalysts. Using a single-flow reactor, under identical conditions (T and P), ethylene has been partially transformed over Ni-AlKIT-6 into 2-butene, which then reacted with the unconverted ethylene over ReOx/Al2O3 to obtain propylene. The effects of Re loading (4–12%), reaction temperature (60–120 °C), and pressure (0.1–3 MPa) on the ETP process have been examined. The nature of the catalytic sites and their stability against deactivation have also been studied. Additionally, we explored for the first time the selective dimerization of the ethylene over Ni-AlKIT-6 at low temperatures.
中文翻译:
在非常温和的条件下通过级联催化反应将乙烯直接转化为丙烯
在不添加其他烃的情况下,在低温下将乙烯转化为丙烯(ETP)是当今的巨大挑战。在这项研究中,我们探索了基于级联反应的ETP工艺,该工艺在两个催化剂上以一锅模式运行。使用单流反应器,在相同条件(T和P)下,乙烯已在Ni-AlKIT-6上部分转化为2-丁烯,然后在ReO x / Al 2 O 3上与未转化的乙烯反应获得丙烯。研究了稀土负载量(4–12%),反应温度(60–120°C)和压力(0.1–3 MPa)对ETP工艺的影响。还研究了催化位点的性质及其对失活的稳定性。此外,我们首次探索了低温下乙烯在Ni-AlKIT-6上的选择性二聚。
更新日期:2020-04-24
中文翻译:
在非常温和的条件下通过级联催化反应将乙烯直接转化为丙烯
在不添加其他烃的情况下,在低温下将乙烯转化为丙烯(ETP)是当今的巨大挑战。在这项研究中,我们探索了基于级联反应的ETP工艺,该工艺在两个催化剂上以一锅模式运行。使用单流反应器,在相同条件(T和P)下,乙烯已在Ni-AlKIT-6上部分转化为2-丁烯,然后在ReO x / Al 2 O 3上与未转化的乙烯反应获得丙烯。研究了稀土负载量(4–12%),反应温度(60–120°C)和压力(0.1–3 MPa)对ETP工艺的影响。还研究了催化位点的性质及其对失活的稳定性。此外,我们首次探索了低温下乙烯在Ni-AlKIT-6上的选择性二聚。