Kinetic model of ethylene oxidation in the presence of both ethylene dichloride (1,2-dichloroethane) and carbon dioxide over a highly selective silver catalyst

Development of a chromium oxide loaded mesoporous silica as an efficient catalyst for carbon dioxide-free production of ethylene oxide

“…Therefore, exploring more costeffective catalytic materials with high H 2 O 2 utilization efficiency, as alternatives to Re, could enhance process viability and economic feasibility. 6 As a consequence, there is a need for more research efforts to explore alternative heterogeneous epoxidation catalysts. [7][8][9] In this pursuit, prior investigations have focused on catalysts composed of transition metals in higher oxidation states, which are supported on mesoporous silica materials (MSM), particularly MCM-41 and SBA-15.…”

Shaping of Silver-Functionalized Metal–Organic Frameworks for Efficient Separation of Ethylene Over Ethane

“…Ethylene, as the cornerstone of numerous important manufacturing businesses, is mainly produced through steam cracking and dehydrogenation of ethane in the petrochemical industry and inevitably contains trace amounts of C 2 H 6 impurities, which may cause safety and health concerns in the finished polymer. − Therefore, further purification is required to obtain high-purity C 2 H 4 products. However, similar physical and chemical properties such as the kinetic diameter (4.443 Å for C 2 H 6 and 4.163 Å for C 2 H 4 ), boiling point (184.55 K for C 2 H 6 and 169.42 K for C 2 H 4 ), and condensability make the separation process of the C 2 H 4 /C 2 H 6 mixture one of the most challenging processes. − At present, cryogenic distillation is the main technology for industrial separation of C 2 H 6 /C 2 H 4 mixtures, but this high-energy thermal drive is an extremely costly and energy-intensive process.…”